Develop Bugs

[Tools/Recovery] TWRP for LG Optimus F3Q

TWRP Recovery for the LG F3Q (codenames: fx3q, d520)
Background story (who ever wants to know):
As I'm currently testing around with flashing etc I hated it to re-flash the stock ROM again and again. It is sooo time consuming..
In that kind of ROM compiling learning process I also was able to build a working TWRP recovery for the LG F3Q so that was such a good feeling But as said the caveat was that because of the locked bootloader we can reach TWRP (or CWM) only when executing "adb reboot recovery" from the running system. That was not really satisfying me though..
Some day I've done a factory reset and well I saw that this is starting my TWRP recovery when executing it! Well it isn't such a surprise as TWRP sits on the recovery partition and will be triggered by the factory reset script but... well do you think what I think? When it would be possible to start TWRP fully and not that factory reset part of TWRP than we would have a workaround to reach the recovery mode without booting the system (which is in fact not possible anymore when flashing of system.img/boot.img fails)
That said.. I was in touch with the TWRP developers bigbiff and Dees_Troy and many thanks for the hint they gave me! I have build a new TWRP version based on that information I got and well the idea of that is:
Vol Down + Power -> LG Factory Reset screen appears
Confirming with power 2 times as asked
Voila: No factory reset anymore but TWRP is here!
Well that will have a caveat - READ CAREFULLY:
As you may think of the factory reset in the boot-up process and within the ROM will not working anymore until you flash another recovery!
But if you know that it is not such a caveat because you can choose the wipe options within TWRP to do a "manual" factory reset.
v2.8.1.0 build 5
USE THAT ON YOUR OWN RISK! BACKUP BEFORE!
Working (quickly tested):
Install (to flash a custom Kernel)
Mounting partitions
Reboot Recovery | System
adb shell (also see known issues)
Backup (compressed | uncompressed | encrypted (!) | unencrypted)
Restore (unencrypted | encypted (!) | compressed | uncompressed)
Internal storage /data/media
MTP which mounts the external storage!
File Manager
Terminal Command
Power charging while in TWRP
Displaying CPU temp
Totally untested:
WIPE (should work)
decrypting /data (but should work as it do so for encrypted backups already)
Every option which is not stated as "Known issue" or "Working"
Known issues (with workarounds):
ADB works only when screen "timed out" (manual locking does not help it must time out) therefore ADB can take up to 1 minute after boot until it becomes available (because screen need to be timed out first)
Workaround: set the time limit in the screen menu to e.g. 10 sec (that is the default value for now)
Timezone is not set correctly (that seems to be a well known bug in several devices using TWRP.... )
Workaround: set a timezone which displays the most accurate timezone
Known issues (without workarounds):
When you use the "Power Off" option in the "Reboot" menu the device will reboot instead of powering off
Wiping /data not possible after "factory reset buttons" used. You need to choose "wipe" and then "format data" manually (or use mke2fs on CLI).
Vibration is not working (I will not fix that atm because I like it that way)
Hardware keys at bottom doesn't work
If you use the factory reset button /data partition will be inaccessible and need to be re-flashed (means you will LOOSE your app and system configs when you use factore reset)
Download:
Attached you will find the TWRP v2.8.1.0 version ready to use even with locked bootloader:
BACKUP EVERYTHING BEFORE USING THIS. USE AT YOUR OWN RISK!
DD Image file:twrp_v2.8.1.0_build5_fx3q_FR-OFF.img.zip = FactoryReset is disabled / TWRP will be loaded instead (also see known issues)
Read the Installation & Usage instructions in this thread on how to install that file.
Installation & Usage instructions
Pre-Requirements
Read the FAQ
YOU NEED ROOT! (check FAQ)
YOU SHOULD do a NANDroid BACKUP! (check FAQ)
You need to boot up, enable USB debugging and then connect USB cable.(check FAQ get ROOT - the link contains a guide on that)
You better doing a NANDroid backup right? (I mentioned that before - but DO it! NOW!)
For the best usage experience install the sediKERNEL or use joel's debloated stock ROM which includes it already
Bulletproof Method 1: "the average user"
Use this guide if you simply want to install & use TWRP like it should be. If you're unsure use this guide!
Install:
Download the TWRP recovery file and unzip it
copy it to your device (e.g. adb push or simply copy & paste by your file browser)
Download the loki_tool (https://github.com/djrbliss/loki/raw/master/bin/loki_tool)
copy loki_tool to your device (e.g. adb push or simply copy & paste by your file browser)
execute:
adb shell
su (you may need to grant permission)
mount -oremount,rw /system
cp /PATH-WHERE-YOU-COPIED/loki_tool /system/bin/ && chmod 755 /system/bin/loki_tool
loki_tool flash recovery /PATH-WHERE-YOU-COPIED/twrp_X.X.X.X_recovery_FRoff/off.img
reboot recovery --> you should see the TWRP screen
Usage (sediKERNEL v2.0 or higher installed):
Power on the device
when you see the LG logo the first time do NOTHING!!
When the screen goes black THEN press Volume UP + Volume DOWN. Both the same time and hold them pressed.
Release the buttons when the screen goes black again
Wait. You will see the LG logo a third time and then you will see the recovery screen!
If you see a kernel crash then you have pressed the magic keys too early! Read and follow the above steps carefully and you should be fine.
Usage (without sediKERNEL v2.0 or higher):
boot into your ROM
execute "adb reboot recovery" from your PC or open a Terminal on your device and execute "su" then "reboot recovery"
Bulletproof Method 2: "developers only"
This is the developers preferred way of installing TWRP. It ensures that even when your ROM or Kernel gets damaged that you still be able to boot into recovery. This is to the developers or heavy testers who are knowing what they do ONLY!
But even when you think this is for you: Read the important hint at the end before deciding if you want to choose this method.
Install:
flash recovery image to your RECOVERY partition:
adb shell su -c dd if=/storage/external_SD/twrp_vXXXXX_fx3q_FR-OFF.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
adb reboot recovery
A user reports the the by-name does not worked for him but this one:
adb shell su -c dd if=/storage/external_SD/twrp_vXXXXX_fx3q_FR-OFF.img of=/dev/block/mmcblk0p17
-> If you can see TWRP now everything is fine - Otherwise DO NOT continue!
BACKUP YOUR WHOLE DEVICE NOW! I highly recommend to backup everything except /data from within TWRP because it is easy and works (from TWRP v2.8build5 or higher)
BACKUP /data is recommended to be done NOW and this way:
adb shell su -c dd if=/dev/block/platform/msm_sdcc.1/by-name/userdata of=/external_sd/userdata_backup_stock.img
--> This can take a long while but it contains also the backup for the internal storage not only /data and that internal part is not backupable over TWRP
while in TWRP flash the same recovery image to your BOOT partition now (do not think that this is dangerous. The boot partition is not a magic thing or so it is only the partition which will be started from the bootloader thats all about it. So yes you can install a recovery image on the boot partition without any harm.):
adb shell su -c dd if=/external_sd/twrp_vXXXXX_fx3q_FR-OFF.img.loki of=/dev/block/platform/msm_sdcc.1/by-name/boot
watch carefully that the process ended without errors and that the size is exactly the same as it should be (about 1,3GB)
adb shell sync
power off the device by taken out the battery (do not use reboot or something we want to be sure that the next step is absolutely really the normal boot up)
Boot up normally --> you should see TWRP !! You're NOT in recovery mode you're booting the normal boot mode!
Go on with flashing the sediKERNEL into your RECOVERY partition:
Download the sediKERNEL from here (the stock one could work, too but never tested ...)
push it to your device with adb or MTP (since v2.8build5)
Flash the sediKERNEL to your RECOVERY partition:
adb shell su -c dd if=/external_sd/sediKERNEL_JB-vXXXX.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
Reboot into Recovery by using TWRP GUI or by executing "adb reboot recovery"
Your ROM will boot.
Usage:
From now on every time your device booting up you will see the TWRP screen and need to choose Reboot-->Recovery to boot your ROM.
This is the absolute best way to use TWRP if you want to be sure that you will reach the recovery even when your ROM gets damaged and is confirmed to work very well (as always guarantees are not available )
Important hint:
Be sure that you keep in mind that from now on your recovery and boot partition are not the same anymore (you can always revert back to the normal behaviour, of course!). So if you want to flash a kernel image you need to ensure that it goes to the RECOVERY partition instead of the normal BOOT partition (because on boot partition is TWRP now).
If I got my ROM working I will definitively add an option to the installer where this will be ensured and I asked @joel.maxuel for his stock ROM to add that, too. As for now we are the only ones who are developing for the F3Q so you should be save enough atm but you will need to keep that always in mind when you want to replace the kernel and/or ROM.
What would happen if you forget about that? Well nothing really bad because when you install a kernel or ROM the boot image partition simply gets overwritten and that means only that your TWRP is not there anymore but the system will boot (if the new kernel/ROM is not buggy or damaged). You then could install TWRP by method 1 or using method 2 by using the boot image/Kernel you want to install.
Damage your device - booting (NOT RECOMMENDED will loose /data ):
You probably NEVER want to use this method. It is here for reference only.
I highly recommend to choose one of the above bulletproof versions instead of this one because it WILL damage /data and you need to restore that whole partition afterwards.
All my tests has shown that this comes not from TWRP (in one of my tests I disabled everything in the sourcecode of TWRP which wipes /data) but coming from LG itself. The factory reset button/option do something with the /data partition sturucture and afterwards you cannot use that anymore. I also tried to restore the partition info by trying all backup superblocks but that doesn't worked. No backup superblock is accessible.
Restoring them by mke2fs and e2fsck does not work unfortunately.. (mke2fs -S /dev/block/platform/msm_sdcc.1/by-name/userdata && e2fsck -yf /dev/block/platform/msm_sdcc.1/by-name/userdata)
So if you have loosed your /data and/or internal storage you need to have a DD imaged backup near.
Install:
same as for "Bulletproof Method 1" above
Usage:
When you choosen FR-OFF then TWRP will be able to start without booting up the whole system (also see known issues):
Power Off the device (remove battery)
Vol Down + Power --> Then put the battery back --> LG Factory Reset screen appears
Confirming with power button 2 times as asked - if you downloaded and flashed the FRoff version of TWRP it will NOT open the normal reset procedure but /data and the internal storage are not accessible afterwards (read above about the details). That means your app configs and systems configs get lost that way. You have been warned!
Voila: No (full) factory reset anymore but TWRP is here when you have damaged your ROM or for some dev approach
If you want the factory reset back simply choose the file twrp_2.7.1.0_recovery_FRon.img.lok and follow the above instructions. Afterwards you will have TWRP but it will be reachable only when you execute "adb reboot recovery" from the running system.
XDA:DevDB Information
sediTWRP for LG Optimus F3Q, Tool/Utility for the General Discussion
Contributors
xdajog
Source Code: https://github.com/xdajog/bootable_recovery_twrp_fx3q
Version Information
Status: Stable
Current Stable Version: v2.8.1.0 build 5
Stable Release Date: 2014-11-18
Created 2015-05-19
Last Updated 2015-07-20

FAQ
Frequently Asked Questions (FAQ)
What is that "adb" thing?
adb stands for: Android Debug Bridge and can help a lot when it comes to work with your device. It is not for developers only but they use it a lot of course.
But a normal user can use this to exchange files without the need of mounting, backing up the device, reboot the device and use it as a very comfortable way of having a terminal emulator.
Normally adb itself is not available as a standalone application - it comes with the Android SDK which is very big and heavy if you want to use adb and/or fastboot (another great tool) only.
But we live in a great world with many people wanting to make things easy so here you go when you want/need only adb and fastboot:
download & install adb at lifehacker
(Direct link for Windows users: Go to easy ADB install thread)
How to get root for the F3Q?
Here is the tool and guide: Saferoot
[*]What is a "nandroid" backup?
nandroid means essentially: "a full image of all your partitions" so it is a full snapshot of your ROM including all your apps and contents.
The name NANDroid is a portmanteau of "NAND" (as in Flash memory - NAND flash) and "Android." (Source)
[*]How to create a "nandroid" backup?
(See above for the meaning of "nandroid backup")
You have several options on how to do that.
The normal and absolutely recommended way is to do that "offline" (from within recovery mode) but you can also do it "online" (while Android is running).
.
Offline nandroid backup by using TWRP recovery: Guide
If you have no custom recovery installed read on.
.
Online nandroid backup:
by using an app:
There is 1 (known to me) "online" nandroid backup tool available which will backup from within your running Android: PlayStore.
I tested it and still using it since a while and I really like it but I would not fully resist on it.
I had no problems backing up but sometimes an app is lost when restoring. This may have been fixed but well it is like imaging a running Windows or Linux system:
Do not do it online if you can - it may/will work but there could be problems/inconsistencies later!!
If you never made a nandroid before doing it online will not harm anything and should be your first start. So install the Online Nandroid backup tool and begin.
Check out this guide for some hints: Guide
(If you like the Android app do not hesitate to buy the unlock key to support the developer!)
by using commandline tools:
First of all you need "adb" installed (check out the FAQ answer number 1 above).
Then you need someone who is telling you the device partition table and you need a big sized SD card to hold the images.
The reason is that you will use a special command named "dd" which images the whole partition (not the content only!).
dd is a VERY dangerous tool because if you use it wrong your device may get bricked so it is essential that you are using the
correct command and check that twice!
Check out the next FAQ on how to do this for the F3Q.
[*]How to create a "nandroid" backup for the F3Q - WITHOUT having a custom recovery?
The whole process will take a big amount of time but it is worth to follow each step including the md5sum checks at the end.
Please read the previous FAQ first because there you will find more information about background and other options you may have.
Ensure you have a SD card inserted which is big enough and having enough free space available (4GB at least! I recommend at least 8 GB but this depends on the size of your current data partition. A completely stock ROM with nothing installed and unused will need 3 GB space).
.
Install "adb" on your pc (check out the FAQ #1 above).
root your device (check out FAQ #2 above)
connect with adb to your (running) F3Q:
adb shell
(you should see a prompt)
su
(you need to grant permission if you haven't yet)
Then backup your current ROM and data:
dd if=/dev/block/platform/msm_sdcc.1/by-name/system of=/storage/external_SD/system.2015-07-20.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/boot of=/storage/external_SD/boot.2015-07-20.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/userdata of=/storage/external_SD/userdata.2015-07-20.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/recovery of=/storage/external_SD/recovery.2015-07-20.img
# If you never backed up your EFS you really should do that once:
dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst1 of=/storage/external_SD/modemst1.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst2 of=/storage/external_SD/modemst2.img
Click to expand...
Click to collapse
Just to be sure you can do an online backup now, too ( Guide ) Online Nandroid backup App
.
copy the backup(s) to your device (connect USB cable - open your external storage and drag&drop) <--- DO NOT SKIP THIS STEP!!!! It is absolutely essential!
Check your copy on your device:
md5sum /storage/external_SD/system.2015-07-20.img
md5sum /storage/external_SD/boot.2015-07-20.img
md5sum /storage/external_SD/userdata.2015-07-20.img
md5sum /storage/external_SD/recovery.2015-07-20.img
md5sum /storage/external_SD/modemst1.img
md5sum /storage/external_SD/modemst2.img
Click to expand...
Click to collapse
Download a md5sum checker like this one Windows MD5 and load each file you copied to it (on Linux the "md5sum" command can be used of course).
compare the md5sums from the above output and ensure that they are all matching.
[*]Why is factory reset not working when installing TWRP? (or: AAAAaaaah my /data is inaccessible after doing a factory reset!!!!)
All my tests has shown that this comes not from TWRP (in one of my tests I disabled everything in the sourcecode of TWRP which wipes /data) but coming from LG itself. The factory reset button/option do something with the /data partition sturucture and afterwards you cannot use that anymore. I also tried to restore the partition info by trying all backup superblocks but that doesn't worked. No backup superblock is accessible.
Restoring them by mke2fs and e2fsck does not work unfortunately.. (mke2fs -S /dev/block/platform/msm_sdcc.1/by-name/userdata && e2fsck -yf /dev/block/platform/msm_sdcc.1/by-name/userdata)
So if you have loosed your /data and/or internal storage you need to have a DD imaged backup near. Sorry but you have been warned (known issues) before.
.
if you want the factory reset back simply choose the file twrp_2.7.1.0_recovery_FRon.img.lok and follow the above instructions. Afterwards you will have TWRP but it will be reachable only when you execute "adb reboot recovery" from the running system. v2.7. is not recommended to use but atm the only option if you really want that. Instead I would better try the wipe options from within TWRP and re-installing your ROM of choice or simply using the official LG flashing tool to get your F3Q fully reset.
.

History / Changelog
Previous development (v2.7.1.0)
I HIGHLY RECOMMEND USING v2.8 instead of this version!
You have been warned.. If you still want that buggy version go on here:
USE THAT ON YOUR OWN RISK! I STRONGLY RECOMMEND TO BACKUP EVERYTHING BEFORE PROCEEDING.
Working:
Install (to flash a custom Kernel)
Mounting partitions (see known issues for the internal one)
Reboot Recovery | System
adb shell
File Manager
Terminal Command
Totally untested:
WIPE (may work)
Known issues:
If the device becomes locked and then unlocked by the user adb will restart on the device (or crash and start again. haven't had looked into that yet)
When you use the "Power Off" option in the "Reboot" menu the device will reboot instead of powering off
RESTORE (will NOT work!)
BACKUP (will NOT work!)
You cannot mount the external sd via USB or MTP
Vibration is not working (I will not fix that atm because I like it that way)
Timezone is not set correctly (that seems to be a well known bug in several devices using TWRP....
Internal storage is missing (/data/media)
Hardware keys at bottom doesn't work
If you use the factory reset button /data partition will be inaccessible and need to be re-flashed (means you will LOOSE your app and system configs when you use factore reset)
Download:
Attached you will find the loki'ed TWRP version (v2.7.1.0):
AGAIN: THIS IS A PROOF-OF-CONCEPT only. It definitively WILL have bugs and problems! I want to proof that it will be possible to have TWRP on this device and also have a way to boot up into TWRP without booting the whole system.
twrp_2.7.1.0_recovery_FRoff.img.lok = FactoryReset is disabled / TWRP will be loaded instead
twrp_2.7.1.0_recovery_FRon.img.lok = FactoryReset is enabled / TWRP can be reached with "adb reboot recovery" only
Read the Installation & Usage instructions in the OP on how to install that file.

Awesome work! Saves having to risk modifying the bootloader (for now). :laugh: :highfive: Thanks!

xdajog said:
TWRP Recovery for the LG F3Q / D520
...
Click to expand...
Click to collapse
I'm unable to get logs from TWRP, it does crash reliably when messing about in settings and such.
Timezone fix is needed. (Devices time is set to the correct local time, but TWRPs timezones arent correct.)
Device does not show internal storage.
Wipe menu does not differentiate from internal storage and /data
there's no /mnt, /storage or /sdcard present while in TWRP.
Uhm, I'm sure there's some more I've missed, but that's all I've got for now.

eriklion said:
I'm unable to get logs from TWRP, it does crash reliably when messing about in settings and such.
Click to expand...
Click to collapse
Uhm what do you mean? adb shell and then open /tmp/recovery.log? Clicking on the small mini icon at middle bottom of the screen? Both working for me. Have you tested the above attached version or the one I gave you at dropbox? The above is a more current one!
Timezone fix is needed. (Devices time is set to the correct local time, but TWRPs timezones arent correct.)
Click to expand...
Click to collapse
hm I will look into that
Device does not show internal storage.
Click to expand...
Click to collapse
yeah forgot to mention that. Is that shown in CWM btw?
Wipe menu does not differentiate from internal storage and /data
Click to expand...
Click to collapse
Could you explain what does that means?
there's no /mnt, /storage or /sdcard present while in TWRP.
Click to expand...
Click to collapse
/mnt and /storage are not needed or am I wrong? /sdcard would point to the internal storage I think but I decided to use /external_sd instead which is accessible in the latest version.

Finally got around to test. Looks great, I love having TWRP over CWM!
Unfortunately the backup function is not working. TWRP errors out and reloads itself. I have a pastebin, sorry it's so long but I wanted to try a couple different backup options before I gave up and produced a log file:
http://pastebin.com/QUfNw6Rk
The portions of interest are:
Code:
Backing up Cache...
I:Creating backup...
I:Creating tar file '/external_sd/TWRP/BACKUPS/1db9cba/1970-01-24--22-43-59 JZO54K//cache.ext4.win'
I:addFile '/cache/recovery' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/cache/recovery/log' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
...
Code:
Backing up Data...
I:Creating backup...
I:Creating tar file '/external_sd/TWRP/BACKUPS/1db9cba/1970-01-24--22-43-59 JZO54K//data.ext4.win'
I:addFile '/data/dontpanic' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg0' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/next_count' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg1' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg2' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg3' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg4' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg5' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg6' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
I:addFile '/data/dontpanic/last_kmsg7' including root: 0
Failed to get selinux context: Operation not supported on transport endpoint
__bionic_open_tzdata: couldn't find any tzdata when looking for localtime!
__bionic_open_tzdata: couldn't find any tzdata when looking for GMT!
__bionic_open_tzdata: couldn't find any tzdata when looking for posixrules!
Starting TWRP 2.7.1.0 on Sun Jan 25 03:44:01 1970
I:Single storage only.
I:No internal storage defined.
I:No storage defined, defaulting to /sdcard.
I:Lun file '/sys/devices/platform/usb_mass_storage/lun0/file' does not exist, USB storage mode disabled
I:Found brightness file at '/sys/class/leds/lcd-backlight/brightness'
I:TWFunc::Set_Brightness: Setting brightness control to 255
Starting the UI...Pixel format: 480x800 @ 32bpp
Pixel format: RGBX_8888
Not using qualcomm overlay, 'msmfb43_80201'
framebuffer: fd 4 (480 x 800)
=> Linking mtab
=> Processing recovery.fstab
I:Processing '/boot'
I:Processing '/cache'
I:Processing '/data'
I:Processing '/misc'
I:Processing '/recovery'
I:Processing '/external_sd'
I:Processing '/system'
I:Creating Android Secure: /external_sd/.android_secure
I:Backup folder set to '/external_sd/TWRP/BACKUPS/1db9cba'
I:Settings storage is '/external_sd'
Updating partition details...
I:Unmounting main partitions...
E:Unable to unmount '/data'
I have a stock based ROM to test, and I want to make sure I can enter recovery through the bootloader should things go sour. If TWRP can backup and restore, that allows me to go back to my true stock after the test. Any ideas?

joel.maxuel said:
Finally got around to test. Looks great, I love having TWRP over CWM!
Unfortunately the backup function is not working. TWRP errors out and reloads itself. [.....] Any ideas?
Click to expand...
Click to collapse
Yes.
There are several things coming in place when it comes to backing up out of TWRP atm...
You hopefully have read the big fat red warning ? What I mean is the part regarding /data gets lost when you do a factory-reset
That said if you have entered TWRP by pressing the physical keys your /data partition will be wiped (really bad thing but that it is made for and I haven't had the time to look into that further)
The result is a cleaned /data which is not mountable until you format it with mke2fs.
(e.g.: "adb shell mke2fs -T ext4 /dev/block/mmcblk0p15")
If you do not do that what MAY happens is that TWRP failing because of missing /data (and if not then you should ensure that /data was really backed up)
But as your log told me it seems to be not the problem here 'cause the /data partition is detected by TWRP. so it could be 2)
Mounting points.
As stated the mount points are not fully working in TWRP atm. That means when it comes to /sdcard which is the internal device storage it will fail, too because it cannot be found. The reason for this is that LG mounts /sdcard by the sdcard service but that is somehow tricky thats why it is not working atm.
And on top: the internal storage normally needs to be mounted to "/data/media" especially when we want to use MultiROM later.
So +1 for /sdcard or/and internal storage related
background info: http://teamw.in/DataMedia
The last one I could imagine is "something else" which could be catched by "/proc/last_kmsg"
The important thing is that this file gets written only after a crash and when the battery was not removed. So if the device reboots to TWRP again try to adb shell to the device and then paste the last_kmsg again. Maybe we can find something here.
When I will continue on TWRP I think of upgrading to v2.8 because they enable MTP here which could be good for copying data between device and pc..
BTW:
I have no idea what CWM port which is also be available would do in case of starting a backup especially what will REALLY gets backed up!!!!
IMHO the best way on doing a nandroid backup atm is "adb shell dd ...." Takes a long time but then you can be sure. I can give you all the mountpoints if you need them.
As I currently have not such much success with porting the ROM I will now come back here to TWRP and will finish it to have a hopefully fully working recovery. I cannot say the timeline for this but it will definitively be the next what I want to do because when this is done I can better match the rest for the ROM.

xdajog said:
<SNIP>
IMHO the best way on doing a nandroid backup atm is "adb shell dd ...." Takes a long time but then you can be sure. I can give you all the mountpoints if you need them.
As I currently have not such much success with porting the ROM I will now come back here to TWRP and will finish it to have a hopefully fully working recovery. I cannot say the timeline for this but it will definitively be the next what I want to do because when this is done I can better match the rest for the ROM.
Click to expand...
Click to collapse
This should work (I've done it before for eriklion):
Code:
adb shell
dd if=/dev/block/platform/msm_sdcc.1/by-name/system of=/storage/external_SD/system.2014-11-12.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/boot of=/storage/external_SD/boot.2014-11-12.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/cache of=/storage/external_SD/cache.2014-11-12.img
dd if=/dev/block/platform/msm_sdcc.1/by-name/userdata of=/storage/external_SD/userdata.2014-11-12.img
Now, is there a recommended adb command to wipe data and cache, since factory reset function is not the best choice? I see a few with the following process...
Code:
adb shell
su
format DATA
format CACHE
...but not much commentary on it.
I appreciate the second (third, whatever you are on) crack at TWRP. Hopefully the next version will squash the bugs. Btw, I will see if I can provide a /proc/last_kmsg tonight have posted a last_kmsg here.

joel.maxuel said:
This should work (I've done it before for eriklion):
Code:
adb shell
dd /dev/block/platform/msm_sdcc.1/by-name/system /storage/external_SD/system.2014-11-12.img
dd /dev/block/platform/msm_sdcc.1/by-name/boot /storage/external_SD/boot.2014-11-12.img
dd /dev/block/platform/msm_sdcc.1/by-name/cache /storage/external_SD/cache.2014-11-12.img
dd /dev/block/platform/msm_sdcc.1/by-name/userdata /storage/external_SD/userdata.2014-11-12.img
Click to expand...
Click to collapse
yes thats all you need to backup & restore
joel.maxuel said:
Now, is there a recommended adb command to wipe data and cache, since factory reset function is not the best choice? I see a few with the following process...
Code:
adb shell
su
format DATA
format CACHE
...but not much commentary on it.
I appreciate the second (third, whatever you are on) crack at TWRP. Hopefully the next version will squash the bugs. Btw, I will see if I can provide a /proc/last_kmsg tonight.
Click to expand...
Click to collapse
I always do it that way:
Code:
Starting TWRP
adb shell
("su" in TWRP not needed normally)
mke2fs -T ext4 /dev/block/mmcblk0p15 (for userdata)
mke2fs -T ext4 /dev/block/mmcblk0p14 (for cache)
Then you can be sure it is clean and well formatted. ext4 is for both cache and userdata and works fine for me.

twrp v2.8 with many enhancements and fixes is on its way
Stay tuned ....
if you get bored in the meanwhile ... click thanks

Is someone here with running the stock ROM (or absolutely not modified means formatted! /data partition) who is willing to give me a quick help? It must be stock or placed back to stock by using a backuped image dump if you have one.
The following need to be done in recovery so you need to have CWM or TWRP installed. Boot into recovery (adb reboot recovery) and then use "adb shell" to connect.
I need your output of this command:
Code:
mke2fs -n /dev/block/platform/msm_sdcc.1/by-name/userdata
This will not do/destroy/modify anything.
It should display some information about that partition. Read the details here http://linux.die.net/man/8/mke2fs
The reason is that LG factory reset seems to wipe superblocks (wanted by LG or not - fact is that they are thrown) and THEN forwarding to the recovery tool like TWRP but to be sure I need the above output from 1 or 2 people to be sure enough on how to proceed.
Thanks in advance
As Joel investigated that may destroy /data cause of a buggy version of mke2fs!! Oh man..
-----
Sent from my SGH-I927 using XDA Android mobile app

Ok thx to joel I'm able to investigate the LG facotry reset further.
In parallel I will try another way which will be (if I get it working) absolutely smooth and will not have such workaround character like the current idea (hijacking factory reset).
Give me some time but if that works it would be a great solution for accessing recovery..
Stay tuned some good things may happen...
-----
Sent from my SGH-I927 using XDA Android mobile app

Finally v2.8 for F3Q has arrived !!! I think a very good approach now!
Have fun and as usual any thx click.... and so on
Check out the OP for Download and details:
http://forum.xda-developers.com/showpost.php?p=55239027&postcount=1
UPDATE:
I have completely reworked the "Installation & Usage instructions" section in the OP. PLEASE READ and be happy

xdajog said:
Finally v2.8 for F3Q has arrived !!! I think a very good approach now!
Have fun and as usual any thx click.... and so on
Check out the OP for Download and details:
http://forum.xda-developers.com/showpost.php?p=55239027&postcount=1
UPDATE:
I have completely reworked the "Installation & Usage instructions" section in the OP. PLEASE READ and be happy
Click to expand...
Click to collapse
Great work.
Am looking at method two. If I was to install a ROM, wouldn't the boot partition (thus my new recovery) be overwritten by the ROM package's boot.img? And when I was cooking with the Kitchen, the ROM required a specific mount point for the boot partition. If it is supposed to point to recovery, seems to me that neither would boot (overwritten recovery, ROM pointing in the wrong location).
So, what is this solution getting around? So we have an option to load TWRP before a system we don't necessarily trust will boot? Thus avoiding the bootloader fallback even more? Or is it a broken boot.img breaks TWRP as well so even if we try to go in through the bootloader, TWRP fails to load as well?
Sorry for my confusion, still trying to grasp all this new information.

joel.maxuel said:
Great work.
Click to expand...
Click to collapse
Thanks
Am looking at method two. If I was to install a ROM, wouldn't the boot partition (thus my new recovery) be overwritten by the ROM package's boot.img?
Click to expand...
Click to collapse
Method 2 will suggest that if you install a custom ROM that you are be able to use/choose the boot.img partition (I hoped that the "hint" at the was clear enough but better to ask of course!)
And when I was cooking with the Kitchen, the ROM required a specific mount point for the boot partition. If it is supposed to point to recovery, seems to me that neither would boot (overwritten recovery, ROM pointing in the wrong location).
Click to expand...
Click to collapse
Well yes you either need to point to the recovery partition or (and that would be what I recommend) you let the user choose what he wanted to do.
So, what is this solution getting around?
Click to expand...
Click to collapse
The best we can do here (and that is what I will do for my custom ROM if I get it done some day) to use AROMA installer and ask the user if he has a recovery installed in the boot partition or not. Then you can choose what to do in the updater script.
I uploaded an example of my AROMA installation setup for the "sediROM for Samsung Captivate Glide" in this post. This one is VERY complex but you will get the idea and many input on how to do things.
So we have an option to load TWRP before a system we don't necessarily trust will boot? Thus avoiding the bootloader fallback even more?
Click to expand...
Click to collapse
Yes using method 2 we have always coming TWRP up when powering on the device. We then can choose to do things in there or to boot to "recovery" which will be the ROM. What do you meant with "bootloader fallback"?
Or is it a broken boot.img breaks TWRP as well so even if we try to go in through the bootloader, TWRP fails to load as well?
Click to expand...
Click to collapse
Not sure If I got you. When the boot partition gets overwritten TWRP and any possibility to get into TWRP will be lost because it sits only in the boot partition when using method 2. If you choose to do a factory reset when powering on the device or from within the ROM I have no idea what happens then unfortunately. That is untested but if you willing to test..
Sorry for my confusion, still trying to grasp all this new information.
Click to expand...
Click to collapse
No worry about that happy if that is useful for someone

xdajog said:
I uploaded an example of my AROMA installation setup for the "sediROM for Samsung Captivate Glide" in this post. This one is VERY complex but you will get the idea and many input on how to do things.
Click to expand...
Click to collapse
Thanks! I will take a look at this in the next few days.
xdajog said:
Yes using method 2 we have always coming TWRP up when powering on the device. We then can choose to do things in there or to boot to "recovery" which will be the ROM. What do you meant with "bootloader fallback"?
Click to expand...
Click to collapse
Bootloader fallback as in having to access TWRP via the bootloader. Our regular method is to access form the ROM, but if the ROM is bricked for whatever reason, the fallback is through the bootloader.
xdajog said:
Not sure If I got you. When the boot partition gets overwritten TWRP and any possibility to get into TWRP will be lost because it sits only in the boot partition when using method 2. If you choose to do a factory reset when powering on the device or from within the ROM I have no idea what happens then unfortunately. That is untested but if you willing to test..
Click to expand...
Click to collapse
I was alluding to the scenario if one was to choose method one, installed a ROM, and things got busted badly... Would you even be able to access TWRP with a bad boot partition? I think so, because recovery partition should be self sufficient (I think you proved it by swapping their places by way of method two), it is just getting into recovery by way of bootloader) I don't particularly like.
Had to face that fear last night, and ultimately, TWRP started up fast enough from the bootloader that it seemed like nothing happened, but when i went to dump the log, it could not recognize the sdcard. DD'ing my userdata partition back fixed that issue.

joel.maxuel said:
Bootloader fallback as in having to access TWRP via the bootloader. Our regular method is to access form the ROM, but if the ROM is bricked for whatever reason, the fallback is through the bootloader.
Click to expand...
Click to collapse
You mean "factory-reset" right? By either pressing the factory reset buttons (or by choosing from within the ROM) correct?
I was alluding to the scenario if one was to choose method one, installed a ROM, and things got busted badly... Would you even be able to access TWRP with a bad boot partition? I think so, because recovery partition should be self sufficient (I think you proved it by swapping their places by way of method two), it is just getting into recovery by way of bootloader) I don't particularly like.
Click to expand...
Click to collapse
If you install TWRP with method 1 and your boot partition gets corrupt you still be able to reach TWRP by using the factory-reset buttons. But you will loose /data then.
If you install TWRP with method 2 and your boot partition has gone you can not start TWRP anymore because it sits on there.
So you're more bulletproof by choosing method 1 because you would reach TWRP even when the boot partition gets damaged but you will loose /data then! Mentioned in the known issues in the OP.
Had to face that fear last night, and ultimately, TWRP started up fast enough from the bootloader that it seemed like nothing happened, but when i went to dump the log, it could not recognize the sdcard. DD'ing my userdata partition back fixed that issue.
Click to expand...
Click to collapse
When you have TWRP installed with method 1 you will reach TWRP by factory reset buttons and it will DO NOTHING ! Really! It simply starts TWRP because I patched TWRP that way that it will not wipe anything when triggered by the factory-reset command / button!
I can say that for double sure since today because:
1) In one of my tests I had disabled REALLY EVERY wipe option within TWRP - compiled it - installed it and even then /data gets lost!
2) I have installed the BOOT image means KERNEL on the RECOVERY partition today again and then used the factory-reset buttons again (after I restored /data of course)... and /data gets lost AGAIN--?!!
That means even when there is absolutely no custom recovery in place (like TWRP) which would normally handle wiping /data then nevertheless /data gets corrupted! I have tested that twice so I can say now for sure that this has nothing to do with TWRP but it comes from the LG bootloader instead! That bootloader is CRAP. sorry.
I had tested one approach which is build in boot image RAM disk which catches the keys which are pressed and then reboot into recovery. That would work but only as long as you have a working boot image partition. So that is the same good/bad as having TWRP sitting within the boot partition which is much easier to do so I decided to go this way for now.
One last word about the crappy factory-reset by LG: I have tried a lot to find out what really happens to the partition or partition table of /data when those keys are pressed but the only thing I can say is that the superblocks are inaccessible and the same for the backup superblocks. doing a "mke2fs -S" does not work (and wouldn't fix the root cause of the issue) and I have no idea what LG do here. Therefore cannot fix that ..
so I believe we will need to live with one of the 3 methods described in the OP....
Hope that answered some of your questions...

Bad news..
The Desire Z of my wife is completely broken now.
That means I cannot develop anymore..
- I ported and released the latest TWRP version to the F3Q
- I'm able to build AOSP JellyBean (not booting yet though),
- I compiled and released a custom AOSP Kernel (named sediKERNEL)
.... and a lot more..
I have everything I need to continue here in place...
I have the will and the ability to continue...
But no device anymore..
If someone has a F3Q to give away.. then I will continue but I'm not willing to buy a F3Q for developing only. So if you have an idea how we could continue let me know.
Update:
Check out the following link if you want to help http://forum.xda-developers.com/showthread.php?t=2952919
Otherwise that will end here for me unfortunately...
Hopefully not.
Yours
Xdajog.
-----
Sent from my SGH-I927 using XDA Android mobile app

I will update the installation instructions soon!
Because of the new sediKERNEL v2.0 the instructions will be made bullet proof only .. and i try to do it more detailed @Kediil
-----
Sent from my SGH-I927 using XDA Android mobile app

[Q&A] [ROM]TN.kitkat.4.4.2.HTC.evo.supersonic(aosp)viper.mod. a2sd_updated4/26/14

Q&A for [ROM]TN.kitkat.4.4.2.HTC.evo.supersonic(aosp)viper.mod. a2sd_updated4/26/14
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:

I'm running supersonic, hboot 6.16 with S-OFF. Have TWRP 2.8 Installed and flashed the TN kitkat rom and gapps core together but play store and the other Gapps do not show up. Someone suggested that using TWRP 2.7.0.0 worked for them, however, flashing 2.7.0.0 through bootloader gives a Fail-PU Update Fail and trying to flash it via fastboot also fails. So far, 2.7.0.0 is the only version of TWRP that fails to install. Any suggestions for getting gapps to work on this rom? I've tried flashing several other kk gapp packs, but they all fail with a message about not being able to run the update script in the zip file.

paultyler82 said:
I'm running supersonic, hboot 6.16 with S-OFF. Have TWRP 2.8 Installed and flashed the TN kitkat rom and gapps core together but play store and the other Gapps do not show up. Someone suggested that using TWRP 2.7.0.0 worked for them, however, flashing 2.7.0.0 through bootloader gives a Fail-PU Update Fail and trying to flash it via fastboot also fails. So far, 2.7.0.0 is the only version of TWRP that fails to install. Any suggestions for getting gapps to work on this rom? I've tried flashing several other kk gapp packs, but they all fail with a message about not being able to run the update script in the zip file.
Click to expand...
Click to collapse
TWRP 2.8 is probably fine - the GApps packages are likely just too large and the flash is failing because your system partition is full.

What do I need to do to get gapps working then? The posted gapps core package doesn't fail on flash like other gapp packs, but the market and other apps never show up.

paultyler82 said:
What do I need to do to get gapps working then? The posted gapps core package doesn't fail on flash like other gapp packs, but the market and other apps never show up.
Click to expand...
Click to collapse
Have you tried downloading the latest core GApps through the EV Updater in the ROM?
(I assume this ROM has that)

Just tried that, flashed through recovery, EV Update only lets you flash gapps in conjunction with a nightly. Flash seemed to succeed, but no luck. Gapps not appearing, nowhere to enter google account in the UI.

paultyler82 said:
Just tried that, flashed through recovery, EV Update only lets you flash gapps in conjunction with a nightly. Flash seemed to succeed, but no luck. Gapps not appearing, nowhere to enter google account in the UI.
Click to expand...
Click to collapse
Can you use the File Manager in Recovery to navigate to /system/priv-app and look for the Google apps? Maybe try extracting them from the zip and manually copying them and setting permissions? There must be some explanation. I've never had a problem with GApps. Can you try fully wiping (including system) and flash the ROM and core GApps again, just to be sure?

Ok. Wiped and reflashed. Odd thing is, before rebooting, the gapps appear to be in /system, however, on restart, they don't show up and when browsing to /system in ES File Explorer, the gapps have disappeared. I have never seen anything like it before, but then, I haven't played with Evos much.

paultyler82 said:
Ok. Wiped and reflashed. Odd thing is, before rebooting, the gapps appear to be in /system, however, on restart, they don't show up and when browsing to /system in ES File Explorer, the gapps have disappeared. I have never seen anything like it before, but then, I haven't played with Evos much.
Click to expand...
Click to collapse
You are wiping system, right?

Ok, tried a few more times now, let me walk you through what I've done.
First, using TWRP, I go to Wipe>Advanced Wipe and select EVERYTHING except sdcard, do the wipe. No errors.
Next, Install. I've now tried both TN KitKat and gapps together, gapps seperately after KitKat, and gapps seperately before KitKat
Each time the result is the same, new boot into KitKat results in the first run demo and no gapps to be found.
Here is the odd part I've now noticed that makes me think either I'm not doing something right, or TWRP isn't treating system correctly. All references to TWRP's file manager means using Advanced>File Manager.
On a new wipe, TWRP's file manager shows usr and bin directories in /system.
After any of the above methods of flashing, TWRP's file manager shows usr and bin AND everything from the gapps package but nothing from the KitKat package.
After first boot, ES File Explorer shows everything expected from the KitKat package in /system and nothing from gapps.
After first boot, rebooting into TWRP and using it's file manager shows only usr and bin present in /system, none of the KitKat or gapps stuff, yet booting back into the system works fine and ES File Explorer continues to show the KitKat stuff in /system.
Attempting to flash the gapps package in again after first boot gives the same results as above.
Attempting to copy anything into /system via ES File Explorer fails on a Read Only error.
Attempting to copy gapps into /system via TWRP file manager gives the same results as flashing the package.
Some other info that may or may not help... Using the Repair or Change File System tool in the Advanced Wipe menu reports the following for System partition: Mount Point: /system, File System: yaffs2, Present: Yes, Removable: No, Size: 350MB, Used: 317MB, Free: 32MB, Backup Size: 317MB
I appreciate the help, I'm thinking that certainly I've missed something along the way, but I can't figure out what.

paultyler82 said:
Ok, tried a few more times now, let me walk you through what I've done.
First, using TWRP, I go to Wipe>Advanced Wipe and select EVERYTHING except sdcard, do the wipe. No errors.
Next, Install. I've now tried both TN KitKat and gapps together, gapps seperately after KitKat, and gapps seperately before KitKat
Each time the result is the same, new boot into KitKat results in the first run demo and no gapps to be found.
Here is the odd part I've now noticed that makes me think either I'm not doing something right, or TWRP isn't treating system correctly. All references to TWRP's file manager means using Advanced>File Manager.
On a new wipe, TWRP's file manager shows usr and bin directories in /system.
After any of the above methods of flashing, TWRP's file manager shows usr and bin AND everything from the gapps package but nothing from the KitKat package.
After first boot, ES File Explorer shows everything expected from the KitKat package in /system and nothing from gapps.
After first boot, rebooting into TWRP and using it's file manager shows only usr and bin present in /system, none of the KitKat or gapps stuff, yet booting back into the system works fine and ES File Explorer continues to show the KitKat stuff in /system.
Attempting to flash the gapps package in again after first boot gives the same results as above.
Attempting to copy anything into /system via ES File Explorer fails on a Read Only error.
Attempting to copy gapps into /system via TWRP file manager gives the same results as flashing the package.
Some other info that may or may not help... Using the Repair or Change File System tool in the Advanced Wipe menu reports the following for System partition: Mount Point: /system, File System: yaffs2, Present: Yes, Removable: No, Size: 350MB, Used: 317MB, Free: 32MB, Backup Size: 317MB
I appreciate the help, I'm thinking that certainly I've missed something along the way, but I can't figure out what.
Click to expand...
Click to collapse
That's because you have to mount system in TWRP to see the actual contents.
What is the exact GApps package you're flashing?

I tried using both the gapps-core-kk-2013-11-25.zip posted in the OP, as well as gapps-kk442-20131211-core.zip from the EVUpdater.
I think I may have just gotten this to work, Play store is showing up. My solution was to manually mount /dev/block/mtdblock4 to /system via ADB and THEN flash the gapps package. Does TWRP not automatically mount NAND to /system? I didn't see an option anywhere in TWRP to mount partitions, the only thing I saw was the Mount menu item that seemed to be related to USB Media Device mounting, not actually mounting partitions. Did I miss something, for future reference?

paultyler82 said:
I tried using both the gapps-core-kk-2013-11-25.zip posted in the OP, as well as gapps-kk442-20131211-core.zip from the EVUpdater.
I think I may have just gotten this to work, Play store is showing up. My solution was to manually mount /dev/block/mtdblock4 to /system via ADB and THEN flash the gapps package. Does TWRP not automatically mount NAND to /system? I didn't see an option anywhere in TWRP to mount partitions, the only thing I saw was the Mount menu item that seemed to be related to USB Media Device mounting, not actually mounting partitions. Did I miss something, for future reference?
Click to expand...
Click to collapse
In the Mount menu in TWRP, there is a list of partitions and check boxes next to them. If you're not seeing that, then perhaps you have a bad recovery flash.
A recovery log would tell us exactly what's happening when you flash.

Thanks, figured that out now, mount via ADB accomplished the same thing.
Problem solved. The original directions call for both packages to be flashed at the same time, however, at least with TWRP 2.8.0.0, system appears to unmount after KitKat is flashed and gapps is installed to null. On this version of TWRP, you must flash KitKat, then mount system again via the Mount menu or ADB before flashing gapps. It seems that the KitKat package's script causes system to dismount and/or gapps package's script does not properly mount system on it's own.
---------- Post added at 10:18 PM ---------- Previous post was at 10:11 PM ----------
Also, thank you Captain for helping to solve the issue. I was apparently suffering from a serious case of terminal stupidity. It didn't even occur to me to manually mount system until you made the statement about having to mount it.

paultyler82 said:
Thanks, figured that out now, mount via ADB accomplished the same thing.
Problem solved. The original directions call for both packages to be flashed at the same time, however, at least with TWRP 2.8.0.0, system appears to unmount after KitKat is flashed and gapps is installed to null. On this version of TWRP, you must flash KitKat, then mount system again via the Mount menu or ADB before flashing gapps. It seems that the KitKat package's script causes system to dismount and/or gapps package's script does not properly mount system on it's own.
---------- Post added at 10:18 PM ---------- Previous post was at 10:11 PM ----------
Also, thank you Captain for helping to solve the issue. I was apparently suffering from a serious case of terminal stupidity. It didn't even occur to me to manually mount system until you made the statement about having to mount it.
Click to expand...
Click to collapse
Well it's weird that the updater-scripts aren't doing it. Like I said, I've never had an issue with flashing the ROM and GApps in TWRP.

I thought it was a bit weird as well, gonna have a look at the recovery log.

Found it. Gapps update script tries to run /sbin/busybox mount /system. This line fails because busybox isn't there, this failure only shows up in the recovery log, the script messages do not indicate that /system has failed to mount and the update script proceeds to run, installing to null and indicating install was successful.

And then there were two.
I still check in to this forum every day. And as far as I can tell, Vin and Cap are the only reason we are able put our legendary device in our pocket every day and know our rom and recovery are bleeding edge. Lollipop would be huge for our small but dedicated community. But for now the gift of KitKat plus a number of Android 5.0 apps gives me what I like to call "LolliKat". This is the most reliable phone I have ever owned! I hope I get to use it for another four years.

htc supersonic TN 4.4.4 problems
I installed TN 4.4.4 a month or so ago and keep having to reinstall at least once a week. The following problems occur:
Home button softkey quits working, while the menu and back soft keys still work.
Browser is inop, when i click it, it seems like it wants to open because a white screen pops up but then it disappears and goes back to my home screen.
I get no notifications in the status bar for anything.
Calls don't ring, i only know i have missed a call if i check my call history.
Lost theme settings, lost all info i setup on phone. Almost like it reset, except it didn't give me a welcome screen.
I am s-on, but i followed the s-on workaround.
When i hit the home button, catlog shows a keyguard msg, a dropping event because of a non touchable area, and a dalvik VM msg too.
Any ideas or suggestions?

cody85 said:
I installed TN 4.4.4 a month or so ago and keep having to reinstall at least once a week. The following problems occur:
Home button softkey quits working, while the menu and back soft keys still work.
Browser is inop, when i click it, it seems like it wants to open because a white screen pops up but then it disappears and goes back to my home screen.
I get no notifications in the status bar for anything.
Calls don't ring, i only know i have missed a call if i check my call history.
Lost theme settings, lost all info i setup on phone. Almost like it reset, except it didn't give me a welcome screen.
I am s-on, but i followed the s-on workaround.
When i hit the home button, catlog shows a keyguard msg, a dropping event because of a non touchable area, and a dalvik VM msg too.
Any ideas or suggestions?
Click to expand...
Click to collapse
im going to install this today.
---------- Post added at 11:02 PM ---------- Previous post was at 10:59 PM ----------
cryptickid715 said:
im going to install this today.
Click to expand...
Click to collapse
will there be a LP lol

Rooted HTC 10 - cannot mount /system - root incomplete ?

Hi folks,
I need your help.
A few days ago I have received my brand new HTC 10. I updated to latest Android 7 Nougat and began to root remaining stock.
I followed the official guide and unlocked the bootloader, flashed latest TWRP (3.1.1.0) and SuperSU v.2.82SR1 and even got S-OFF by SunShine.
System is up an running and readily booting but...
Fact is I cannot mount /system in TWRP without the option "read-only". When I try to install apps via TWRP I get repeated messages saying "Failed to mount '/system' (Invalid argument) " and usually the apps do not install properly - flashed apps do not show up in the system after reboot.
In the system I have tried to rename a file audio_effects.conf (this is needed to install Viper4Android) in the folder /vendor/etc/ on the device but the folder is strictly read only. Any attempts to mount the folder as RW (using "adb shell", "su", "mount -o remount,rw /system" and similar) have failed. I have tried to gain access to files in the system folder using Root Explorer and Total Commander but the files remain strictly read only. I just get error messages trying to change file attributes, permissions,names).
SuperSU seems to work and according to Root Checker I am properly rooted but I doubt this. Somehow /system seems to be locked and not accessible.
Any ideas what I could do ?
Many thanks for your help ! :good:

Well, I simply flashed Viper10 ROM and the issue was gone.
Feel free to suggest solutions to the problem as somebody else might come accross this thread struggling with a similar issue. I believe the issue was caused by an incompatibility between the latest Android Nougat and the last available TWRP.

Buddha1979 said:
Well, I simply flashed Viper10 ROM and the issue was gone.
I believe the issue was caused by an incompatibility between the latest Android Nougat and the last available TWRP.
Click to expand...
Click to collapse
No, it's not an incompatibility issue.

Does anyone know what is causing this? I been running into a similar type issue where I get an error trying to flash ROM's. Tried to do a TWRP backup and it failed to back up data. I do a factory reset and data format and it seems to fix some things but still have trouble flashing ROM's. I was able to restore a nandroid but have ran into this issue a few times. I am on Viper magisk.

plz help a noob
LibertyMonger said:
Does anyone know what is causing this? I been running into a similar type issue where I get an error trying to flash ROM's. Tried to do a TWRP backup and it failed to back up data. I do a factory reset and data format and it seems to fix some things but still have trouble flashing ROM's. I was able to restore a nandroid but have ran into this issue a few times. I am on Viper magisk.
Click to expand...
Click to collapse
I also just recently updated to nougat and when i tried to root using the latest (TWRP 3.0.3-11) it seems I get stuck on a screen with red text that says, "This build is for development purpose only . Do not distribute outside of htc without htc's permission."
I know this is not the original question but was hoping someone with more experience could help instead of starting a new thread :/
Thanks much!

I just ran the latest Verizon RUU and I am still getting this error when trying to flash Viper10_5.9.0_MAGISK. Seems system is not mounting, I don't know I will appreciate any help Thank you.

Cannot find LineageOS install package when inside TWRP

I wanted to install LineageOS.
I followed the tutorial here: https://wiki.lineageos.org/devices/bullhead/install
I completed the folowing steps
Code:
6.) Select Cache, System and Data partitions to be wiped and then Swipe to Wipe.
7.) Go back to return to main menu, then select Install.
8.) Navigate to /sdcard, and select the LineageOS .zip package.
But couln't complete the 8th step becaus I think I don't have the LinageOS zip on my phone, How can I move it there?
How can I send LineageOS install package to my phone so I can install it with TWRP ?
I am using Nexus 5x with Windows 10.

Not to worry
Easy. Just boot up your current ROM and USB, SD Card, Bluetooth, WHATEVER means you have available to move the file to your downloads folder or someplace like that. As long as you can navigate to it, TWRP will let you do that when the time comes. Recommend you put your GApps zip file (I prefer nano) and the appropriate L.O.S. su-addon zip in there as well. After all, what's the use of the ROM if it isn't rooted
Now, fire it up in TWRP and do at least one complete, everything you can include backup of the whole thing before you do ANYTHING else. TWO backups are better if you can move one of them completely off device, as in to a USB stick, etc... The more good backups you have, the less the evil Gods of screwing up installs will try to seek you out. Yes, that has been scientifically proven, even if it sounds like superstitious mumbo-jumbo.
Still good? Wipe dalvik, cache, whatver your build recommends, and flash L.O.S., the su-addon, and GApps all at once. Reboot, be just a little bit patient the first time around, and enjoy. Good Luck.

nezlek said:
Easy. Just boot up your current ROM and USB, SD Card, Bluetooth, WHATEVER means you have available to move the file to your downloads folder or someplace like that. As long as you can navigate to it, TWRP will let you do that when the time comes. Recommend you put your GApps zip file (I prefer nano) and the appropriate L.O.S. su-addon zip in there as well. After all, what's the use of the ROM if it isn't rooted
Now, fire it up in TWRP and do at least one complete, everything you can include backup of the whole thing before you do ANYTHING else. TWO backups are better if you can move one of them completely off device, as in to a USB stick, etc... The more good backups you have, the less the evil Gods of screwing up installs will try to seek you out. Yes, that has been scientifically proven, even if it sounds like superstitious mumbo-jumbo.
Still good? Wipe dalvik, cache, whatver your build recommends, and flash L.O.S., the su-addon, and GApps all at once. Reboot, be just a little bit patient the first time around, and enjoy. Good Luck.
Click to expand...
Click to collapse
Sorry I don't know what you mean exactly. Can you exlain a bit more?
My situation looks like this:
1) I don't need to backup anythig.
2) My problem is that I don't have the lineageOS zip on my phone so I can't install it with TWRP
3) because of step 5,6 on the tutorial I believe I don't have any current ROMS!
step 5,6:
Code:
5) Select Wipe and then Advanced Wipe.
6) Select Cache, System and Data partitions to be wiped and then Swipe to Wipe.
My assumption is that no ROM will load as the current ROM got deleted during step 5&6.
All I get when I start the phone is GOOGLE sign and the lock sign at the bottom.
4) When I go to Reboot inside TWRP and click System I get "No OS Installed! Are you sure you wish to reboot?"
Can you help?

flex567 said:
Sorry I don't know what you mean exactly. Can you exlain a bit more?
My situation looks like this:
1) I don't need to backup anythig.
2) My problem is that I don't have the lineageOS zip on my phone so I can't install it with TWRP
3) because of step 5,6 on the tutorial I believe I don't have any current ROMS!
step 5,6:
Code:
5) Select Wipe and then Advanced Wipe.
6) Select Cache, System and Data partitions to be wiped and then Swipe to Wipe.
My assumption is that no ROM will load as the current ROM got deleted during step 5&6.
All I get when I start the phone is GOOGLE sign and the lock sign at the bottom.
4) When I go to Reboot inside TWRP and click System I get "No OS Installed! Are you sure you wish to reboot?"
Can you help?
Click to expand...
Click to collapse
H'mmm.......... It does appear that you wiped the whole thing, and THAT may make it a bit more of a challenge, but let us try our best. HOPEFULLY your device will recognize the necessary files on a USB stick. You can tell TWRP to MOUNT the USB drive in order to do that if you must, and many devices have no problem and will recognize the device with no added effort, and you just have to navigate to it within TWRP. THAT will be the EASY way, and given what you've described, there isn't anything left on the device to be concerned about with respect to backups, etc... so cross your fingers, and if TWRP can mount and find a USB storage device you just have to flash the three zip files from USB storage as previously described. Otherwise, there is not much I could do personally without the device in hand, although the easiest path forward might be to re-flash a stock ROM and start over again. And please note you would not be the first person reading (or writing) this message to need to do that. Once you get the hang of this, it is not a brutal process, but the first time or two it can be a bit intimidating. Hang in there, the good news is that it is somewhat difficult to totally brick most of these things, so persistence should win out. As long as you can still boot it into TWRP you're fine. Now, one other very important thing. If somehow the bootloader was not unlocked, none of this is going to work at all. SO if that is the case, your only recourse is going to be to get that taken care of first, which requires one of: some finesse with ADB / fastboot, a ROM of some sort (i.e. re-install stock) installed on the device that lets you unlock it by flipping the switch in developer settings , or some other more geeky process that is best supervised by a person who genuinely knows what they are doing and with physical access to the device. There will be no shortage of content out here concerning how-to, but some of the folks writing it are not necessarily technical writers targeting a less experienced audience, even if they are in many cases quite brilliant programmers.

nezlek said:
H'mmm.......... It does appear that you wiped the whole thing, and THAT may make it a bit more of a challenge, but let us try our best. HOPEFULLY your device will recognize the necessary files on a USB stick. You can tell TWRP to MOUNT the USB drive in order to do that if you must, and many devices have no problem and will recognize the device with no added effort, and you just have to navigate to it within TWRP. THAT will be the EASY way, and given what you've described, there isn't anything left on the device to be concerned about with respect to backups, etc... so cross your fingers, and if TWRP can mount and find a USB storage device you just have to flash the three zip files from USB storage as previously described. Otherwise, there is not much I could do personally without the device in hand, although the easiest path forward might be to re-flash a stock ROM and start over again. And please note you would not be the first person reading (or writing) this message to need to do that. Once you get the hang of this, it is not a brutal process, but the first time or two it can be a bit intimidating. Hang in there, the good news is that it is somewhat difficult to totally brick most of these things, so persistence should win out. As long as you can still boot it into TWRP you're fine. Now, one other very important thing. If somehow the bootloader was not unlocked, none of this is going to work at all. SO if that is the case, your only recourse is going to be to get that taken care of first, which requires one of: some finesse with ADB / fastboot, a ROM of some sort (i.e. re-install stock) installed on the device that lets you unlock it by flipping the switch in developer settings , or some other more geeky process that is best supervised by a person who genuinely knows what they are doing and with physical access to the device. There will be no shortage of content out here concerning how-to, but some of the folks writing it are not necessarily technical writers targeting a less experienced audience, even if they are in many cases quite brilliant programmers.
Click to expand...
Click to collapse
The bootloader is unlocked becaues I unlocked it and I see the red sign:
Code:
DEVICE STATE - unlocked
When I click Mount I get the following options, System, Vendor Data, Cache, USB OTG, which one should I select ?

I was able to fix it and I installed it now the Lineage OS works
I had to go to
Code:
Mount > enable MTP
and after that I was able to use
Code:
ADB SHELL
and after that I was able to push the zip to the device. Once it was on the phone I was able to use TWARP to install it.
Code:
$ adb push lineage-15.1-20180430-nightly-bullhead-signed.zip sdcard
The only question I have is why I get this message every time I turn on the phone, how can I remove it? :
Code:
A vendor image mismatch has been detected. Typically this means your vendor images us out of date. Please enousre your vendor image matches OPM2. 171019.029
Since I decided not to install Play Store, how can I now install some programs without the playstore ?

flex567 said:
I was able to fix it and I installed it now the Lineage OS works
I had to go to
Code:
Mount > enable MTP
and after that I was able to use
Code:
ADB SHELL
and after that I was able to push the zip to the device. Once it was on the phone I was able to use TWARP to install it.
Code:
$ adb push lineage-15.1-20180430-nightly-bullhead-signed.zip sdcard
The only question I have is why I get this message every time I turn on the phone, how can I remove it? :
Code:
A vendor image mismatch has been detected. Typically this means your vendor images us out of date. Please enousre your vendor image matches OPM2. 171019.029
Click to expand...
Click to collapse
Wow, you took what I would have thought of as the long way, but so far, so good it would seem. I was thinking you could have simply mounted the USB as an OTG device and flashed directly from that via TWRP. I have ZERO clue about the "vendor image mismatch" message. But now that you have it more or less working, you COULD try putting the zip files into the regular downloads folder, do a dalvik and cache (factory reset) wipe, and re-flash them. You haven't loaded up a bunch of stuff to worry about replacing. Worst case you repeat initial setup. What have you got to lose?
---------- Post added at 08:36 PM ---------- Previous post was at 08:27 PM ----------
flex567 said:
I was able to fix it and I installed it now the Lineage OS works
I had to go to
Code:
Mount > enable MTP
and after that I was able to use
Code:
ADB SHELL
and after that I was able to push the zip to the device. Once it was on the phone I was able to use TWARP to install it.
Code:
$ adb push lineage-15.1-20180430-nightly-bullhead-signed.zip sdcard
The only question I have is why I get this message every time I turn on the phone, how can I remove it? :
Code:
A vendor image mismatch has been detected. Typically this means your vendor images us out of date. Please enousre your vendor image matches OPM2. 171019.029
Since I decided not to install Play Store, how can I now install some programs without the playstore ?
Click to expand...
Click to collapse
Missed that one, sorry. If you did not flash the GApps zip when you installed Lineage, you can hunt down the .APK files for apps you want on the web. That'd be the only way I can think of and a good reason to re-do it before it is too long into the process !!! If you pick the nano or even pico options you won't be dragging much if any Google bloat onto the phone. Personally, while I often find the Play Store to be a pain in the .... I can ignore it until I need something. On some devices it can certainly be most intrusive.

I don't think I will play around with it now for some time.
I was thinking you could have simply mounted the USB as an OTG device and flashed directly from that via TWRP
Click to expand...
Click to collapse
I tried to select the OTG thing but was unable to put the checkmark in.
I also found the fix for Vendor Image mismatch, didn't try if it works though:
https://gist.github.com/MacKentoch/48ad6b91613213ee9774c138267e2ed4#file-fix-lineageos-vendor-mismatch-error-nexus5x-md
I also think this needs to be updated:
https://wiki.lineageos.org/adb_fastboot_guide.html
https://wiki.lineageos.org/devices/bullhead/install
you COULD try putting the zip files into the regular downloads folder
Click to expand...
Click to collapse
I had problems pushing the LineageOS.zip file anywhere else, I coulnt create new folder.

flex567 said:
I was able to fix it and I installed it now the Lineage OS works
I had to go to
and after that I was able to use
and after that I was able to push the zip to the device. Once it was on the phone I was able to use TWARP to install it.
The only question I have is why I get this message every time I turn on the phone, how can I remove it? :
Since I decided not to install Play Store, how can I now install some programs without the playstore ?
Click to expand...
Click to collapse
Congratulations for not installing play store. I think you not installed play services as well. You simply did not install any GApps. That's the first step to get your setup slim and privacy friendly. Next steps are installing f-droid app. From f-droid you can install free software. If you really need apps from play store you can get them with yalp. If they don't run without Google play services you can try microG.

I found a page from which I can download apk files from play store so I will just use that for now.

unable to backup data on twrp

Hello everyone, today while trying to do backup in twrp, I am continuously getting the error message as "createTarFork() process ended with ERROR: 255
Backup Failed.". I tried some solutions mentioned in the forums, but they seem to be having error with different folder. In the log I found that there is error in opening webviewgoogle, but I couldn't found that folder anywhere.
Invalid encryption mode 'ice:aes-256-cts'
Backing up System...
Invalid encryption mode 'ice:aes-256-cts'
Error opening: '/system/app/WebViewGoogle' (Structure needs cleaning)
I:Error in Generate_TarList!
Error creating backup.
I used codeworkx and Blu spark twrp and both seems to have the same issue. Kindly help me in doing a backup. Thanks in advance.

I use blue spark and the copy does it well but restoring a backup gives me an error because I can not mount the system and I also get the phrase that the system needs to be cleaned ... By when a functional twrp???

Princeland said:
I use blue spark and the copy does it well but restoring a backup gives me an error because I can not mount the system and I also get the phrase that the system needs to be cleaned ... By when a functional twrp???
Click to expand...
Click to collapse
I just skipped the back up and did format the data and clean installed the ROM and it worked. Earlier I was unable to restore due to mount system error but I just clicked the system in advanced->mount in twrp and restore the old backup...

Try deleting all paralell apps under the apps Section

galaxy s4 nutjob said:
Try deleting all paralell apps under the apps Section
Click to expand...
Click to collapse
It's not related to parallel apps. I checked this one already.

I had this problem a couple weeks ago:
So the first thing you do to fix the system partition not mounting is to download this tool: https://androidfilehost.com/?a=show&w=files&flid=38683
Tool looks like this: https://i.imgur.com/04L1h9b.png
Step one: Install drivers. Should be straightforward.
Step two: Make sure you device is connected. It detects it in fastboot and everything just press the refresh button a couple of times. In this case you're best off starting in fastboot mode.
Step three: Erase all data / Decrypt internal storage. https://i.imgur.com/2HZN1jK.png
Step four: Flash twrp. Make sure to select your device in the dropdown list. Then select recovery flasher and flash the one shown in screengrab. https://i.imgur.com/80N32db.png
Step five: reboot into recovery and flash what ever you want.
This tool is extremely usefull and quite timesaving. Make sure you explore it's features.
Note: I do not own the tool nor do I know the dev.
Happy to help

pinnekeshaar said:
Step three: Erase all data
Click to expand...
Click to collapse
Seriously, every time I read this, I think to myself, what sort of a pure evil person may hide behind such a malevolent advice?
Really, what's wrong with you, man? Were you, like, tortured as a child? Your loved ones murdered?
To give this sort of advices to people who want to god damn it BACKUP (that means, save and protect, not erase) their data.

lockywolf said:
Seriously, every time I read this, I think to myself, what sort of a pure evil person may hide behind such a malevolent advice?
Really, what's wrong with you, man? Were you, like, tortured as a child? Your loved ones murdered?
To give this sort of advices to people who want to god damn it BACKUP (that means, save and protect, not erase) their data.
Click to expand...
Click to collapse
Well I guess you've been right on time with your part of the advice. You know, three months later. Also, some people have brains and can think of the fact they need to backup their stuff before deleting everything.

Three months later I found this thread in Google.
And also, just in case, the thread is exactly about making backups.