Develop Bugs

[US998] TWRP unofficial alpha [Feb.17.2018]

TWRP for US998 (not US-Cellular)
I have simply used existing sources from @jcadduono so thanks to him for the h930 version that simply works on our US998 devices.
All i have done here is changed props to read us998 instead of h930, so asserts should work and labeling on a pc will be correct etc. I don't intend to maintain or build any other versions.
The purpose of this modified twrp and this thread is to provide less confusion for new users of the US998 and for what version of twrp to flash, as the h930 thread appears to be abandoned.
Flashing instructions
1. Unlock your bootloader
2. Fastboot flash the twrp img onto your device - (fastboot flash recovery twrp_us998.img)
Don't let the device boot into system or you will need to fastboot flash again, you need to do the button combo to get into recovery quickly before it automatically boots.
3. Flash a root method or a dm-verity disabler zip.
4. You will probably need to format your data partition before it will boot into system. Because of encryption.
DOWNLOAD - twrp_us998.img
This is built using @jcadduono sources from the H930 version of TWRP found here
Kernel - https://github.com/jcadduono/android_kernel_lge_msm8998/commits/twrp-7.1 and
Device treer - https://github.com/jcadduono/android_device_lge_h930
--->

PayPal donation made for US998 TWRP and the WETA ROM. Thank you.
Question: just like the H930 TWRP worked for bootloader unlocked US998 V30, would this TWRP also work for bootloader unlocked H930/H930G or ANY OTHER LG V30/V30+ variants if they ever got bootloader unlock and full flash commands?

ChazzMatt said:
PayPal donation made for US998 TWRP and the WETA ROM. Thank you.
Question: just like the H930 TWRP worked for bootloader unlocked US998 V30, would this TWRP also work for bootloader unlocked H930/H930G or ANY OTHER LG V30/V30+ variants if they ever got bootloader unlock and full flash commands?
Click to expand...
Click to collapse
This uses the same sources as h930 so will work for both, though is simply set up for us998. I didn't change anything except device fingerprints
[emoji450]--->

Mentalmuso said:
This uses the same sources as h930 so will work for both, though is simply set up for us998. I didn't change anything except device fingerprints
[emoji450]--->
Click to expand...
Click to collapse
OK, just asking for future. Especially if you update this TWRP and the other one is never updated... Or if another LG V30/V30+ variant gets bootloader unlock and full flash commands through exploit.
I remember when Sunshine team unlocked the bootloader to Droid Turbo XT1254 in November 2015, one of the Motorola Quark variants. One of the Sunshine devs asked "Who can quickly build me a TWRP to work with this?" NO NEED. Quark already had OFFICIAL TWRP! And yes, it worked just fine on the Droid Turbo. Problem was, the XDA mods had split the Quark forums just two months prior (due to locked down Droid Turbo owner complaints; they were tired of seeing custom ROMs, kernels, etc.) -- so all the dev work for the OTHER bootloader unlocked Quarks (XT1225, XT1250) had disappeared, moved to a different location. Very ironic. To this day, Droid Turbo owners mostly have to go over to the Moto Maxx/Moto Turbo forum to get custom ROMs which are fully compatible with their phones. It's just all the dev work is posted over there, because they didn't want to see any dev work -- until their bootloader got unlocked, of course.
So, I'm glad all the LG V30/V30+ are together.

Can't wait to actually use this on my v30+!

Flashing instructions
1. Unlock your bootloader
2. Fastboot flash the twrp img onto your device - (fastboot flash recovery twrp_us998.img)
Don't let the device boot into system or you will need to fastboot flash again, you need to do the button combo to get into recovery quickly before it automatically boots.
3. Flash a root method or a dm-verity disabler zip.
4. You will probably need to format your data partition before it will boot into system. Because of encryption.
Hey Sorry about this but not to be a real dummy but can you tell me/us I know we are still in fastboot mood can you tell us what the button combo is to get back into recovery because I'm not real sure about it

foamerman said:
Flashing instructions
1. Unlock your bootloader
2. Fastboot flash the twrp img onto your device - (fastboot flash recovery twrp_us998.img)
Don't let the device boot into system or you will need to fastboot flash again, you need to do the button combo to get into recovery quickly before it automatically boots.
3. Flash a root method or a dm-verity disabler zip.
4. You will probably need to format your data partition before it will boot into system. Because of encryption.
Hey Sorry about this but not to be a real dummy but can you tell me/us I know we are still in fastboot mood can you tell us what the button combo is to get back into recovery because I'm not real sure about it
Click to expand...
Click to collapse
Oh yeah, simply holding power and volume down simultaneously, as soon as you see the LG logo, let go of power button for a brief moment and re-press it until you see twrp boot up.
[emoji450]--->

Mentalmuso said:
Oh yeah, simply holding power and volume down simultaneously, as soon as you see the LG logo, let go of power button for a brief moment and re-press it until you see twrp boot up.
[emoji450]--->
Click to expand...
Click to collapse
Thank you Sir I"m new to the LG phone didn't know how to do it.

Just did a system backup but failed. chose External Sdcard since it could not mount internal memory. It ran well when backuping system but when the process of creating system image lasted For some time, the mission was automatically aborted. could not figure out why.

Moriatier said:
Just did a system backup but failed. chose External Sdcard since it could not mount internal memory. It ran well when backuping system but when the process of creating system image lasted For some time, the mission was automatically aborted. could not figure out why.
Click to expand...
Click to collapse
I've been doing backups to internal since day one. Never tried an external card backup. I can't help much as i simply used the source code from the h930 twrp, and never intended to fix or update anything. It was a confusion eliminating build so us998 users knew what to flash

so is there any reason i should update this over the h930 version?

VR32 said:
so is there any reason i should update this over the h930 version?
Click to expand...
Click to collapse
Nope. Not unless you want your PC to say us998 instead of h930 when plugged in in recovery mode.

Moriatier said:
Just did a system backup but failed. chose External Sdcard since it could not mount internal memory. It ran well when backuping system but when the process of creating system image lasted For some time, the mission was automatically aborted. could not figure out why.
Click to expand...
Click to collapse
You cant mount your internal memory because its encrypted with LGs own encryption, and TWRP cant decrypt that.
Solution would be: format internal data, flash the no-verity-opt-encrpyt zip (other twrp thread has a link), and start from new
And the system image backup isnt really needed, except you want to flash it via fastboot (i leave that out always)

can i ask you to upload to google drive or something ebcause androidfilehost seems to be slow compared to downloading from the likes of mega or google drive

Edit: Nevermind

Hi,
Looking for some help getting twrp running. Bootloader is confirmed unlocked.
After the fastboot flash command, it successfully writes twrp.
Then i hold power and volume down, when i see the LG logo, i briefly let up on power and hold it again.
Then instead of seeing twrp, I see the "factory data reset" screen (and the choices are no or yes)
Then it doesn't seem to matter what i choose, I cannot seem to make it into twrp.
can anyone see what I'm doing wrong here?
Thanks

glhelinski said:
Hi,
Looking for some help getting twrp running. Bootloader is confirmed unlocked.
After the fastboot flash command, it successfully writes twrp.
Then i hold power and volume down, when i see the LG logo, i briefly let up on power and hold it again.
Then instead of seeing twrp, I see the "factory data reset" screen (and the choices are no or yes)
Then it doesn't seem to matter what i choose, I cannot seem to make it into twrp.
can anyone see what I'm doing wrong here?
Thanks
Click to expand...
Click to collapse
you should have chosen yes

Thanks for the help!! I seem to have another issue. I got past the issue above, then twrp asked for a password/pin (which i removed before I started this whole thing.)
In twrp, i flashed magisk 16, the dm-verity zip and rctd disabler. Now when I reboot, it looks like android is starting but it tells me "Encryption unsuccessful. The password you entered is corrupt but unfortunately your data is corrupt. To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset, you'll have an opportunity to restore any data that was backed up to your Google account"
And there is a "Reset Phone" button....which I click but it just goes back to TWRP and now i'm stuck.
This may not be the correct place to post for help but can anyone help please?
Thanks

glhelinski said:
Thanks for the help!! I seem to have another issue. I got past the issue above, then twrp asked for a password/pin (which i removed before I started this whole thing.)
In twrp, i flashed magisk 16, the dm-verity zip and rctd disabler. Now when I reboot, it looks like android is starting but it tells me "Encryption unsuccessful. The password you entered is corrupt but unfortunately your data is corrupt. To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset, you'll have an opportunity to restore any data that was backed up to your Google account"
And there is a "Reset Phone" button....which I click but it just goes back to TWRP and now i'm stuck.
This may not be the correct place to post for help but can anyone help please?
Thanks
Click to expand...
Click to collapse
In TWRP you need to reformat your partition, not just "wipe". See point #7. Even though they say "wipe", they also admit it's reformat data. And then you have all the stuff you need on your microSD card and can pull from that. (Very important!)
[GUIDE][LGV30]Unlocking and Rooting - TWRP/Magisk Step-by-Step
https://forum.xda-developers.com/lg-v30/help/unlocking-rooting-twrp-magisk-step-step-t3745006

ChazzMatt said:
In TWRP you need to reformat your partition, not just "wipe". See point #7. Even though they say "wipe", they also admit it's reformat data. And then you have all the stuff you need on your microSD card and can pull from that. (Very important!)
[GUIDE][LGV30]Unlocking and Rooting - TWRP/Magisk Step-by-Step
https://forum.xda-developers.com/lg-v30/help/unlocking-rooting-twrp-magisk-step-step-t3745006
Click to expand...
Click to collapse
thanks. that worked for me. in somewhat of a panic i violated the rule of not searching

LG G4 H815 No TWRP Access

Hello members of XDA,
The issue I'm having is pretty rare and found few or non threads about it, so I will try to be the most precise possible.
Yesterday I decided to change the ROM of my LG G4 H815, I was previously on LineageOS, since LineageOS on H815 wasn't developped anymore. So I asked myself why not trying Android Oreo with CypherOS. Before any changes I was with the latest version of LineageOS for H815 and I had TWRP with the version 3.0.2.1. Bootloader was obviously unlocked.
So I starded to download all the required material to switch to CypherOS 5.3.1, while the download I've made a backup of my actual lineageOS installation on my internal storage. Once every thing was downloaded I tried to install CypherOS I had an error 7 in TWRP install box, so I was pretty worried, scouted XDA threads about the error but i was redirected to the solution where you modify the update binary with txt but still didnt worked. I've found a thread talking about updating firmware of the H815 ( https://forum.xda-developers.com/g4/development/v5-8-5-n7-1-2-resurrection-remix-t3704450) While panicking I've done a wipe of everything (dalvik, data,cache and system) .I applied thge firmware update but I also re-read the thread of CypherOS and figured that I needed a newer version of TWRP, installed it so. THen magically CypherOS installed without any issue.
After installing the Gapps (Arm64 8.1 Nano) I rebooted and the first weird thing appears, after seeing the LG screen while the boot I have another screen telling me that the bootloader has been locked and that i should visit g.co/ABH for more information, then CypherOS initialise, CypherOS worked like a charm. So I wanted to go to my TWRP and make a backup in case. I launched ADB and use the command adb reboot recovery, the phone restarted and had the following events : LG logo, warning message about the bootloader, LG logo again and then a black screen. However I was in recovery mode since adb found me with the command fastboot devices. I had no TWRP logo or anything linked to it. Few minutes later, I had the basic recovery mode where you move yourself with the volume buttons and select with power where the functions are pretty limited.
Then I rebooted the phone with adb (fastboot reboot), CypherOS still working perfectly. Thaught that it was the bootloader which back to scratch when he was blocked, I figured out that he was still unlocked, I used the command "fastboot getvar unlocked" through ADB. THen I thaught i had to install back TWRP, tried through the fastboot mode but I had an error
Code:
FAILED (remote: unkown command)
since i tried everything i could even in the basic recovery mode, the only working command in the recovery is "fastboot flash recovery twrp.img" but still does nothing.
I mean it's not that terrible since I can use my phone and i'm about to change phone in 2 months for a Oneplus but i would really like to be able to install magisk on the phone to grant root access and be able to use TWRP on it like I used to. By the way the backup of lineageOS has been deleted while performing unecessary wipes.

Bennou said:
Hello members of XDA,
The issue I'm having is pretty rare and found few or non threads about it, so I will try to be the most precise possible.
Yesterday I decided to change the ROM of my LG G4 H815, I was previously on LineageOS, since LineageOS on H815 wasn't developped anymore. So I asked myself why not trying Android Oreo with CypherOS. Before any changes I was with the latest version of LineageOS for H815 and I had TWRP with the version 3.0.2.1. Bootloader was obviously unlocked.
So I starded to download all the required material to switch to CypherOS 5.3.1, while the download I've made a backup of my actual lineageOS installation on my internal storage. Once every thing was downloaded I tried to install CypherOS I had an error 7 in TWRP install box, so I was pretty worried, scouted XDA threads about the error but i was redirected to the solution where you modify the update binary with txt but still didnt worked. I've found a thread talking about updating firmware of the H815 ( https://forum.xda-developers.com/g4/development/v5-8-5-n7-1-2-resurrection-remix-t3704450) While panicking I've done a wipe of everything (dalvik, data,cache and system) .I applied thge firmware update but I also re-read the thread of CypherOS and figured that I needed a newer version of TWRP, installed it so. THen magically CypherOS installed without any issue.
After installing the Gapps (Arm64 8.1 Nano) I rebooted and the first weird thing appears, after seeing the LG screen while the boot I have another screen telling me that the bootloader has been locked and that i should visit g.co/ABH for more information, then CypherOS initialise, CypherOS worked like a charm. So I wanted to go to my TWRP and make a backup in case. I launched ADB and use the command adb reboot recovery, the phone restarted and had the following events : LG logo, warning message about the bootloader, LG logo again and then a black screen. However I was in recovery mode since adb found me with the command fastboot devices. I had no TWRP logo or anything linked to it. Few minutes later, I had the basic recovery mode where you move yourself with the volume buttons and select with power where the functions are pretty limited.
Then I rebooted the phone with adb (fastboot reboot), CypherOS still working perfectly. Thaught that it was the bootloader which back to scratch when he was blocked, I figured out that he was still unlocked, I used the command "fastboot getvar unlocked" through ADB. THen I thaught i had to install back TWRP, tried through the fastboot mode but I had an error since i tried everything i could even in the basic recovery mode, the only working command in the recovery is "fastboot flash recovery twrp.img" but still does nothing.
I mean it's not that terrible since I can use my phone and i'm about to change phone in 2 months for a Oneplus but i would really like to be able to install magisk on the phone to grant root access and be able to use TWRP on it like I used to. By the way the backup of lineageOS has been deleted while performing unecessary wipes.
Click to expand...
Click to collapse
It's clearly written on the official website and in the official TWRP support thread for the g4 what you have to do when on Nougat bootloader and want to flash TWRP... and keeping it.
Sent from my LG-H815 using XDA Labs

Yet, this still doesnt help me to solve my issue. Do you think there is a way to fix it or no ? If not, I'll just deal with it for the few months lasting.

Bennou said:
Yet, this still doesnt help me to solve my issue. Do you think there is a way to fix it or no ? If not, I'll just deal with it for the few months lasting.
Click to expand...
Click to collapse
Okay if it doesn't work for you you must do something wrong. It works 100%. If you really want help you should explain in detail exactly which steps you took as otherwise it's all just guessing what you're doing.
Sent from my LG-H815 using XDA Labs

Indeed, I didn't followed the procedure exactly, didn't do the step after flashing TWRP (removing battery and boot manually to recovery). Well thank you, was my bad on that.
Should I do a clean new install of cypheros or should I keep it like that, what would be your advice ? Knowing that at the moment CypherOS works like a charm. I also plan to install Magisk on it to root it.
To help others newbie like me, solution can be found here : https://forum.xda-developers.com/g4/development/recovery-twrp-3-touch-recovery-t3442424

TWRP recovery not working on Blackview BV9500

Hi everybody,
I try to root my Blackview BV9500 by installing first TWRP recovery. I use fastboot mode on a linux laptop to do that.
I successfully flash the twrp recovery image, but after that, the phone don't boot in recovery anymore.
It try to boot into recovery, but it reboot in normal mode a few second after.
I tried also with the cmd "fastboot boot recovery.img".
When i flash back the original recovery image, it work, i can boot the original recovery without any problem.
Does anyone have the problem?
Some one can help me to find a solution?

I, too, am trying to do this. I have not yet flashed it... I was going to use the fastboot boot command to boot the recovery kernel before permanently flashing it, to make sure it would work, and in my googling I stumbled across this post. Serendipity! [Edit 3: Although, reading your post again, I see you tried that as well and it didn't succeed for you. For me, it simply tells me remote: command not found, so how were you able to even get that to work?]
All that said... I have the BV9500 Pro, specifically for the two-way radio, so I'm going to try to keep that little tidbit of hardware working in the process. I mainly just want to tweak the menus a bit, tweak the quick settings, get root, delete the Google crapps I won't be using...
On to your problem, though, I can't help much but maybe if we post back and forth our successes and failures we might be able to stumble through it together?
First, I assume you already have unlocked your bootloader? [Edit: Honestly, I'm not sure flashing the recovery would be allowed without first unlocking the bootloader]
[Edit 2: Perhaps this thread might be of help. Different model, but often the hardwares used by manufacturers are similar enough that the same steps generally work. ]

Thank you for the link, maybe i need to flash the complete rom with the twrp recovery with spflash tools, and it will work.
I will try and let you know, but i will make a backup of my rom before flashing it!
For your problem with fastboot, maybee it's because you need to install it. You can use the command "sudo apt-get install fastboot" on a terminal window if you are on linux.
If you want to enter the recovery mode, you don't need to use fastboot, you can simply enter it by pressing Volume Up and Power buttons together for a couple of seconds when your phone is off.
When Boot Mode appears release all keys.
To flash recovery with fastboot, you need first to enable the developer mode on your phone (go to "Settings > About phone" and make 7th tap on the build number, the Developer options will be unlocked and available), and unlock the bootloader of course.
here what is the process i made to flash the recovery :
- i use the command "adb devices" to check if the phone is well connected. (response is like "BV9500S320001179 device")
- then i enter in fastboot mode with "adb reboot bootloader" (phone reboot and ask confirmation for fastboot mode)
- check with command "fastboot devices"
- unlock the bootloader with the command "fastboot oem unlock" or "fastboot flashing unlock".
- flash the phone with the twrp recovery with "fastboot flash recovery recovery.img"
- reboot the phone in recovery mode with "fastboot boot recovery.img"
Normally the phone boot in twrp recovery.
Hope that will help you too.

I am too facing this problem. In case you got any solutions please let me know too.

Yves596 said:
For your problem with fastboot, maybee it's because you need to install it. You can use the command "sudo apt-get install fastboot" on a terminal window if you are on linux.
Click to expand...
Click to collapse
Yup. Already had fastboot installed for the LG G5 this phone replaced, the Galaxy Note 4 the LG replaced, the MyTouch 4G Slide the Galaxy replaced, my wife's old Galaxy S5 I used in the interims... LOL, I've got a working install. No, the "Remote: command not found" was returned from within.... Whether fastboot or adb, I forget now, but I was able to get the file to flash eventually, after reading your first post, but unfortunately the phone would not boot to it (nor Android). I thought I'd bricked it. Twice this happened. Each time, after about 5 minutes, it eventually booted to Android.
I flashed the recovery from the ROM in the link Blackview sent me and was able to boot their recovery just fine, so there's something in the TWRP that my particular phone doesn't like.
If you want to enter the recovery mode, you don't need to use fastboot, you can simply enter it by pressing Volume Up and Power buttons together for a couple of seconds when your phone is off.
When Boot Mode appears release all keys.
Click to expand...
Click to collapse
Thanks, I keep forgetting which keys to hold for recovery versus bootloader, so I use the adb command to be sure without having to keep a notepad nearby.
Clearly I don't do this as often as I used to.
(snip)
- flash the phone with the twrp recovery with "fastboot flash recovery recovery.img"
- reboot the phone in recovery mode with "fastboot boot recovery.img"
Normally the phone boot in twrp recovery.
Hope that will help you too.
Click to expand...
Click to collapse
Now that was something I haven't done since the T-Mobile G1 days. My understanding was that you CAN boot a recovery without flashing it first if you"fastboot boot {image filename}" but that didn't work for me either. I'm also assuming that the filename to flash can be anything because the device stores it to a partition, so it shouldn't have to be specifically "recovery-verified.img".
The recovery you have... Were you ever able to boot to it? If so, would you be willing to share a link to its download source, please?
I've got to run for a prior engagement, I'll check back later.
Thanks!

veronicadavis said:
I am too facing this problem. In case you got any solutions please let me know too.
Click to expand...
Click to collapse
I guess i find the reason why the modified recovery image won't boot.
I find an interesting information in a post of osm0sis (https://forum.xda-developers.com/showthread.php?t=2073775) were he say : "some newer MediaTek (MTK) devices use special image signing that adds a "BFBF" pre-header signature, so images will unpack/repack but most likely won't boot unless run through their internal signing tool."
After more search, i find an interesting publication (http://www.lieberbiber.de/2015/07/04/mediatek-details-partitions-and-preloader/) witch confirm that.
They say in conclusion of the publication :
"Yes, I can confirm that SignTool is able to add digital signature information to firmware images. Signed images have an additional header “BFBF” and some fluff which SP Flash Tool checks on a secure device. Apparently some manufacturers merely used the default MTK key for signing the images, making them no better off than a typical insecure MTK device."
So we have to find another way to install magisk to root it.

Root 9500/pro
Mine rooted already....you guys can check on 4pda russian forum
Note : do not use the 17.1 version of magisk there because after reboot the device will freeze if you resboot after twrp 1st install...instead flash 17.3+ or 18+ right after first install of twrp...
EDIT : dont mind the russian language in TWRP as you can change it to english once there

Yves596 said:
Hi everybody,
I try to root my Blackview BV9500 by installing first TWRP recovery. I use fastboot mode on a linux laptop to do that.
I successfully flash the twrp recovery image, but after that, the phone don't boot in recovery anymore.
It try to boot into recovery, but it reboot in normal mode a few second after.
I tried also with the cmd "fastboot boot recovery.img".
When i flash back the original recovery image, it work, i can boot the original recovery without any problem.
Does anyone have the problem?
Some one can help me to find a solution?
Click to expand...
Click to collapse
Hello I have same problem... Do you have that original recovery file? I don't have and I would like to get that back. Thanks.

DL this:
needrom. com/ download/bv9500pro- bv9500-root/ (delete spaces)
- Copy Magisk-v18.0.zip and disable_encryption_9500.zip to external SD-Card or OTG device
- backup your data from internal SD-Card
- do a factory reset and turn off phone without entering the setup guide after reboot, or wipe via recovery and power off
- Flash recovery.img using scatter.txt with SP Flash Tool
- boot into recovery with hold down vol + and power
- switch TWRP to your language and install Magisk-v18.0.zip and disable_encryption.zip
- reboot and update or install MagiskManager-v6.1.0.apk
Thanks to Jemmini from 4pda.ru

kanadali said:
DL this:
needrom. com/ download/bv9500pro- bv9500-root/ (delete spaces)
- Copy Magisk-v18.0.zip and disable_encryption_9500.zip to external SD-Card or OTG device
- backup your data from internal SD-Card
- do a factory reset and turn off phone without entering the setup guide after reboot, or wipe via recovery and power off
- Flash recovery.img using scatter.txt with SP Flash Tool
- boot into recovery with hold down vol + and power
- switch TWRP to your language and install Magisk-v18.0.zip and disable_encryption.zip
- reboot and update or install MagiskManager-v6.1.0.apk
Thanks to Jemmini from 4pda.ru
Click to expand...
Click to collapse
Thank you for your help and Jemmini help too, it work fine.
But on the firmware version 20180629.

Yves596 said:
Thank you for your help and Jemmini help too, it work fine.
But on the firmware version 20180629.
Click to expand...
Click to collapse
you can just download latest firmware and simply backup NVRAM etc with sp flash tool also flash with sp tool, you will have then working twrp with disabled encryption. there are tons of post regarding using sp flash tool on this forum
im using same phone and did these actions on first day and did not have any problem with twrp or magisk

Hi,
I've bought this phone in Pro version. I rooted my phone using needrom.com/download/bv9500pro-bv9500-root/ and adb after unlocking bootloader. Then I failed with errors. Then I used SPFlashTool in root mode with official 2018092919_s32v63c2k_jk_pro.rar rom (I don't find it anymore on the net but 1) I got it on Blackview official forum and 2) I have the file on my own PC) with format+Download and replace recovery with TWRP from Jemmini from 4pda.ru before flashing. OK.
Then I rooted again: format /data with TWRP, then install disable_encryption.zip, wipe dalvik, reboot on TWRP, then install Magisk, wipe dalvik, reboot normally.
Beware: TWRP is in Russian language at first boot, so to get it in English, first slide the first slide (allowing writing), then select 'Настройки', then the globe on top, then English, then 'Установитъ Язык'.
Hope this helps.
Then, this is my first rooted phone, so I plan to make a custom rom without Gapps (then maybe without Mediatek Ones and agold too) and remake all functionning with apps from Fdroid. Help needed on a manner of removing a system/vendor app properly. Help needed too to add V4A, as I could see max version supported is Nougat. I announce this here as my first post, but my project will be a full post. If someone want help please ask here or MP me
Note: an update of magisk is out (official 18.1), I installed it and my phone tells me a message that facial recognition was not working anymore then it only boots on TWRP... I reflashed it and my phone boots normally again. Wait and see...
Thanks to Jemmini from 4pda.ru again.
Bests Regards

nr0000000 said:
Hi,
I've bought this phone in Pro version. I rooted my phone using needrom.com/download/bv9500pro-bv9500-root/ and adb after unlocking bootloader. Then I failed with errors. Then I used SPFlashTool in root mode with official 2018092919_s32v63c2k_jk_pro.rar rom (I don't find it anymore on the net but 1) I got it on Blackview official forum and 2) I have the file on my own PC) with format+Download and replace recovery with TWRP from Jemmini from 4pda.ru before flashing. OK.
Then I rooted again: format /data with TWRP, then install disable_encryption.zip, wipe dalvik, reboot on TWRP, then install Magisk, wipe dalvik, reboot normally.
Beware: TWRP is in Russian language at first boot, so to get it in English, first slide the first slide (allowing writing), then select 'Настройки', then the globe on top, then English, then 'Установитъ Язык'.
Hope this helps.
Then, this is my first rooted phone, so I plan to make a custom rom without Gapps (then maybe without Mediatek Ones and agold too) and remake all functionning with apps from Fdroid. Help needed on a manner of removing a system/vendor app properly. Help needed too to add V4A, as I could see max version supported is Nougat. I announce this here as my first post, but my project will be a full post. If someone want help please ask here or MP me
Note: an update of magisk is out (official 18.1), I installed it and my phone tells me a message that facial recognition was not working anymore then it only boots on TWRP... I reflashed it and my phone boots normally again. Wait and see...
Thanks to Jemmini from 4pda.ru again.
Bests Regards
Click to expand...
Click to collapse
It'd be great to have another rom but I'm facing a problem with battery life. Basically mobile network standby drains 5000mah battery every day i turned off from developer option but still problem is there. I have checked every single post on Google but nobody has solution for this. U guys face this problem too?

kanadali said:
It'd be great to have another rom but I'm facing a problem with battery life. Basically mobile network standby drains 5000mah battery every day i turned off from developer option but still problem is there. I have checked every single post on Google but nobody has solution for this. U guys face this problem too?
Click to expand...
Click to collapse
New update has been released today. It solves some battery issues, but be very careful.
I installed it, having TWRP and now I'm stuck in TWRP. I've tried to wipe everything but I'm still in TWRP.
I'll try SPFlashTool ... hope it works.

Everything restored & updated.
Using SPFlashTool I flashed all files included in 2018092919_s32v63c2k_jk_pro.rar (including original recovery instead of TWRP).
After that, Android booted and then, using OTA, I updated to latest version.

Reflected_God said:
New update has been released today. It solves some battery issues, but be very careful.
I installed it, having TWRP and now I'm stuck in TWRP. I've tried to wipe everything but I'm still in TWRP.
I'll try SPFlashTool ... hope it works.
Click to expand...
Click to collapse
Could you please send me the link? Can't find it on blackview forum

kanadali said:
Could you please send me the link? Can't find it on blackview forum
Click to expand...
Click to collapse
The latest version is not on the forum. I installed via OTA.
But if you mean the previous firmware, there is one link on the blackview forum: http://bbs.blackview.hk/viewtopic.php?t=480235#p795494
SP Flash tools are well documented here: https://forum.xda-developers.com/showthread.php?t=1982587
And a complete list of blackview bv9500 / bv9500 pro files and instructions (in russian): https://4pda.ru/forum/index.php?showtopic=931296
Hope you find what you are looking for.

@kanadali,
for the moment I'm not facing battery drain because there is not simcard in it at this state of my modifications, sorry.
@Reflected_God,
I think this is the link I used, I use the 2018092919_s32v63c2k_jk_pro.rar rom for base.
For all others who faces big problems like me (facial recognition not working then reboot on twrp only, I could reflash my phone with SPFlashTool, the rom and twrp from Jemmini/4PDA in russian only (others don't work for me). I used Format + Download in root mode on Linux. Then format /data with TWRP, then install disable_encryption.zip, wipe dalvik, reboot on TWRP, then install Magisk, wipe dalvik, reboot normally. Do other things. To remove gapps I disabled/force stop it before remove with TWRP. Others apps I can't disable simply remove with TWRP. I test if I encounter bugs but none for the moment. If someone wants to know what I do I've made a LibreOffice Calc sheet log, which evolve when I have time
Hope this helps
Bests Regards

Need Files or a GOOD guide. bv9500 NOT PRO.
If someone could upload the exact files that they used, and the exact same steps, that would be great. Please mention what stock version you have and a link to the image if possible as well. I've followed numerous different guides, with multiple different rom versions, multiple different recovery imgs, used sp flash tool and adb/fastboot multiple times, tried making sure everything was unlocked before each try, have all the necessary drivers, and the closest I get to a functional twrp recovery is a green line that appears at the top of the boot screen before it reboots. Ive tried going to the source, the russian site, but all of the links are 404ed. if not for me, then it would be great to just have this all in one place. Thank you please future hero.
Please include exact program versions (ex SP Flash) as well if not zips of them. I am sorry to be asking so much in one post however I truly didn't know what else to do. And I am typically very good with my google fu xD
I currently have build number BV_BV9500_V1.0_20181026. That seems to matter I believe.

I second the notion.
I have the pro model. I have considered rooting it, but honestly, the phone works well enough as-is without root (for me). However, I'd LOVE to be able to play with different ROMs on this device **AS LONG AS I CAN MAINTAIN THE TWO-WAY UHF TRANSCEIVER FUNCTIONALITY** (i.e. not some "needs-a-network-of-some-kind" "walkie talkie app" like Zello but the real UHF two-way), and I'd LOVE the ability to play with the files associated with the radio to really explore the hardware's capabilities.
Unfortunately, this phone seems more popular in [North]eastern Asia than anywhere else so I don't think we're likely to get much on this forum regarding it unless and until BV become a popular name in the western hemisphere.

Moto G7 Play XT1952-4 Recovery

Hello, does anybody know when a recovery for the moto G7 play XT1952-4 might be released? I am eager to root my new phone.

I am also looking for the recovery of Moto G7 Play, I unlocked my BootlLoader to make Root and I do not think any Recovery

You don't need TWRP to root the phone. As long as the bootloader is unlocked, you can root with Magisk. Select the Link To Installation Instructions and follow the Boot Image Patching section. It requires using ABD commands, and although it looks/seems complicated, it is actually very easy. Plus, you will have learned something as well as root your phone.
If the G7 Play is actually code-named "Channel", then this link will give you stock firmware for you to download and extract the stock boot image.

Magisk boot.img
Ok I got the retail Canada ROM. Now I am going to extract boot img and patch it with Magisk manager. Once patched I am going to flash it to my phone using abd fastboot? At this point it will be rooted or do I use SuperSU to root? Under software channel on my phone it says "Bell" but the build number and model number matched up. XT1952-4 PPY29. 105-57 so it should be good hopefully.
Thanks

Error: cannot open 'magisk_patched.img'
Must be wrong Rom. Everything worked fine until I had to flash it. I put patched IMG right in adb directory and opened a command window from there but when I tried to flash it I got the error cannot open file. Oh well I think I will wait for a recovery it's the easy way for me.
Thanks

Code named 'channel'
There are 2 more versions of it in the list you provided. Not sure what the abbreviations are before CA for Canada but I will try them too. If I get the same error when flashing these patched boot.imgs I will have to wait for a recovery. Hopefully it won't by be too much longer. I just hope there will be a recovery.
Thanks

Continued error when flashing patched files.
I have tried 3 boot images from 3 different retail Canada firmwares. All 3 patched alright by magisk manager but when I try to fastboot flash boot magisk_patched.img I get the same error cannot open file. I must be doing something wrong. My phone's bootloader is unlocked so unless someone has a solution. I will definitely have to wait for a recovery. Hopefully soon!.
Thanks

Dumb question...when you are attempting to flash your patched boot image, is your phone in fastboot mode? Also, you may be able to extract your boot image via ADB. It's been a while since I've done it and am having trouble finding the proper commands, but you can try this:
adb pull /dev/block/bootdevice/by-name/boot stockboot.img
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Click to collapse
It may or may not work. I hope it does but apologize if it does not.
Furthermore, you will likely have to wait quite a while for a custom recovery (TWRP). The G7 play has A/B partitions, which makes ROM building and recoveries very difficult. There is no separate "recovery" partition with A/B...the recovery is combined within the boot image. FYI - I have a Xiaomi A2 Lite that has A/B partitions. We still don't have a 100% working TWRP after 9 months. Custom ROMs have just been coming out slowly. I was able to root with Magisk using ABD commands though.
This link might provide clearer steps for installing Magisk.
Best of luck!

Yes, it was in fastboot mode. I will keep trying with your new intructions. Thanks for your help.

My mistake
I did not even have adb fastboot installed I was opening a command window out of the folder that was left over from uninstallation. I am about to try it again. It should work now. Stay tuned.

So far
Okay, so I installed adb fastboot and flashed the patched boot file from the RETCA firmware. I got this message " failed (boot a)" . So I tried the flashing the 2nd patched boot file that was from I think BWACA firmware. With this flash I got " not signed or corrupt" then the phone failed to start with bootloader log to confirm.
So I took the original unpatched boot.img from RETCA and flashed it. This fixed the phone so it would start fine making me believe that it's the right boot image but maybe the other firmware boot.img would have fixed the failing to start issue as well. So I think I need to pull the boot.img from the phone itself like you suggested. I am going to read some more and continue. I will figure it out. Any suggestions would be of great value.
Thanks.

Getting Closer
I realized that the magisk zip file that magisk manager downloaded did not get unzipped so that it could patch the boot.img properly. Fixed that. Flashed the boot.img and it said "okay" but said "(bootloader) image signed with key bad key" so I think I will have to pull the boot.img from the phone itself. So I am about to read up on that then I should be able to flash successfully for root access.
Thanks

jwreidmoto said:
I realized that the magisk zip file that magisk manager downloaded did not get unzipped so that it could patch the boot.img properly. Fixed that. Flashed the boot.img and it said "okay" but said "(bootloader) image signed with key bad key" so I think I will have to pull the boot.img from the phone itself. So I am about to read up on that then I should be able to flash successfully for root access.
Thanks
Click to expand...
Click to collapse
A few posts back you said you flashed the stock RETCA boot image. If that's the case, then if you successfully pull the boot image from the phone, you are simply pulling the RETCA boot image you already flashed. It seems that the RETCA boot image is the correct one for you phone. I would start completely from scratch with that. To verify which build number you have, go to Settings>About Phone or ( Settings > About Phone > Software channel) and scroll down to Build Number. Match it up to one from link with all the firmware images.
The only other thing I can say is that you should read and completely understand what to do prior to doing it. I am sorry you are having difficulties with this. It really should not be so hard. As I don't have the phone I cannot be of much more assistance. However, once you figure it out, perhaps you can write a quick guide to help others.
EDIT: You should be rooted. SEE POSTS 10-13. Did you check for root?
EDIT 2: I'm assuming that since you unlocked the bootloader, when you reboot the phone the screen goes black and says "Bad Key", correct? That is normal for Moto phones.
2nd, after you root, when you reboot the phone, the screen should go black and say "N/A". Again that is normal for Moto phones.

I understand what you are saying I would also expect the N/A on the black screen that's when I knew I successfully rooted my old phone. I must have the right boot image if flashing it fixed the startup failure. I am going to start all over again and see.

Have to give up.
Tried and tried it's just not going to work. I think it's the patching because the boot file starts out as 32mb and only 18mb after being patched. Flashing has no effect on my phone even though it says 'okay' when I flash. I never get the N/A on boot unless there is a startup failure. Oh well have to live with ads among other anoyyances. My Moto g4 play is rooted I can use than in case a solution comes up. Thanks for all your help.

jwreidmoto said:
Oh well have to live with ads among other anoyyances.
Click to expand...
Click to collapse
DNS66 is your friend! I have used it on other unrooted phones. It was decent from what I remember. Good luck!
Sorry that root wasn't working.
EDIT - If you are up for a little more testing...I just found this. I don't remember if it's what I had to do for my Xiaomi or not, but it makes sense. (Further research - No I did not have to do this). Scroll down to method #2 and look for the part about A/B partitions:
fastboot flash boot_a patched_boot.img
fastboot flash boot_b patched_boot.img
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Click to collapse
Edit #2 - I don't give up easily LOL
After any of your attempts to flash the patched_boot image, did you ever boot the phone and open the Magisk Manager app? Doing so should ask to install Magisk, if not you must tap on the "Install" button. Then choose "Install" > "Direct Install (Recommended)" to install Magisk on the phone, and reboot when finished.

Neither do I
I have been trying everything since we last talked. Just so you know the link labelled as "this" in your last response is not working. I always opened the magisk app after flashing to see if it was either installed or gave me the option to do a direct install unfortunately, it did not. I have magisk manager installed on my rooted Moto G4 plus and it gives me that option to do a direct install. Will definitely try your new info. Thanks so much for more help. I will let you know.

Still no luck
Without the link I got the jist of what you were saying by the quote boot_a boot_b I tried both consequtively and then tried it for ever possible retail Canada image still no luck. Thanks for your help. I don't know why it's so hard for this phone. I will keep researching.

I'm at about the same place where jwreidmoto is. I purchased my unlocked g7play from Best Buy. First I tried the files in the channel/RETUS folder, these all caused a bootloop. I then tried in the RETAIL folder... still no joy. None of the version numbers quite matched up, and none worked to restore the phone. I finally found a matching file in the AMZ folder, which I was able to use to get the phone to boot up again. So I used that boot.img file with magisk and when I flashed, it gave no errors, no indication anything failed. Unfortunately though, I do not have root access. I started over from scratch and did the process over with the AMZ boot img again, and again no errors, but no root. I've never rooted before, so I don't know if there's another part somewhere I missed, but I do feel like I was able to follow the directions on the g7 thread by mingkee, and performed the steps accurately. I supposed it's just the wrong boot img. The about phone says the software channel is US Retail, and the build number is PPY29.105-36. The RETUS folder only has PPY29.105-43 and RETAIL folder has five different zip files, but none were PPY29.105-36.

You are doing it right
You have not missed any steps. If the boot.img fixed the boot loop then it should be the right one. I had the same issue with a startup failure and fixed it with the RETCA boot.img so I am also using the right one also. I think it's an issue with the model of phone, this method just does not work. We might have to wait a while until someone comes up with a solutuon. I know it sucks.

S10e - impossibility to install Lineage OS

I need to install Lineage OS on this phone.
After multiple tries several months apart, I am still not in success.
Followed all internet tutorials and sites.
I don't want to install any G apps or any special root-things like magdisk..
I only want pure Lineage OS without any extra applications.
Way I tried and probably ended up like before:
Get newest official samsung ROM installed, update, enable usb debigging and oem, go download mode and go factory reset, get back in, sign in to wifi again, again enable develop. settings and usb debugging, go into download mode, take odin and install through the AP option the TWRP now that the phone is in download mode a 3rd time, supposed to be possible now with OEM unlock.
Most of the names on the way I don't understand, just follow tutorials.
I need to get to TWRP to then finally, as used to always, install Lineage from zip.
But I never get rebooted into TWRP recovery, just forver the samsung one, even when firmware is no longer there - after flashing in ap option the twrp tar again it never boots into TWRP afterwards.
Is there something else i must do? is not getting into oem unlock and flashing TWRP enough to get there?
And after, will the zip install finaly get me to have lineage installed?

Did you try the official guide?
https://wiki.lineageos.org/devices/beyond0lte/
I hope I picked the right phones, otherwise check devices overview.
Alternatively, perhaps this helps:
https://forum.xda-developers.com/t/...-a-graphical-installer-for-lineageos.4509995/
PS: Usually LOS doesn't do TWRP anymore but comes with its own recovery (a/b)

Why they don't do TWRP now?
I saw TWRP tuorial fot s10 on tutorials and it worked
Do I have to give up on TWRP way and od it with the adb commands from PC

frustrateduser118 said:
Why
Click to expand...
Click to collapse
It's because of this new double recovery scheme:
https://forum.xda-developers.com/t/help-understanding-a-b-partitions.3748003/post-75545902
https://source.android.com/docs/core/ota/ab
https://www.xda-developers.com/how-...ess-updates-affect-custom-development-on-xda/
EOD: It's safer, updating happens in the background, then just a quick reboot et voila.
frustrateduser118 said:
I saw TWRP tuorial
Click to expand...
Click to collapse
Yes, it's still there but perhaps you post a link to your guide (or ask there). To me it seems you had TWRP just in your RAM but not your phone?
As for me, I finally gave up on TWRP and use the "crappy" LOS recovery Have way more important things to waste my time on...
PS: Sorry to bring such "bad" news, wasn't too happy with that change myself

Great, I finaly made it work.
I followed the site with turotial on installation and did not try TWRP
First I had to install samsung ROM again
It turned out to still stay unlocked so went straight to download mode and this time flashed Lineage recovery sucesfuly with heimdall
Then it booted up and a half samsung sreen made it seem like there is trouble
but Lineage recovery launched
The adb load from PC did not work so i chose to instal zip from SD even there
Now Lineage is installed
Still don't know how much is randomness, luck and so on
But it's done and hopefuly repeatable

frustrateduser118 said:
hopefuly repeatable
Click to expand...
Click to collapse
I am afraid it is
Well, most of times: Far too often I forget some little prerequisite, too... so started a little text file with steps/reminders.

anyway glad for support sigmund
you re my friend now