Develop Bugs

my phone keeps booting into fastboot mode

hello,
after i failed to root my phone
everytime i try to put it in recovery mode it goes back to fastboot mode ..
even if i tried to flash a recovery on it , it would boot to fastboot mode
even when trying to install a official htc software update it just boots into fastboot ..
now i want to get it back to stock..
can you please help me !!
if someone would like to help me .. i can open teamviewer and he can do it for me ..
thx

zsnorow said:
hello,
after i failed to root my phone
everytime i try to put it in recovery mode it goes back to fastboot mode ..
even if i tried to flash a recovery on it , it would boot to fastboot mode
even when trying to install a official htc software update it just boots into fastboot ..
now i want to get it back to stock..
can you please help me !!
if someone would like to help me .. i can open teamviewer and he can do it for me ..
thx
Click to expand...
Click to collapse
If you are able to boot into fastboot, search the latest TWRP and flash it via adb. Connect your device while in fastboot mode and see if it recognize it.
If it does put the recovery file you have downloaded on your desktop and open a command window, press shift and right click at the same time and click on Open command window here.
Type adb devices, if you see a serial number go on and type adb reboot bootloader, then type fastboot flash recovery [ the name of the recovery file you have just downloaded ]
You can do this just by powering on your phone, no need to be already in fastboot mode, just follow the commands.
Press shift and right click : open command window here : adb devices : adb reboot bootloader : fastboot flash recovery [ the name of the recovery file you have just downloaded, do not forget the .img extension ]
fastboot reboot
Once you have a working TWRP you can flash your corresponding backup and go back to stock. The backup will be flashed from TWRP, search for instructions.

XSL-FO said:
If you are able to boot into fastboot, search the latest TWRP and flash it via adb. Connect your device while in fastboot mode and see if it recognize it.
If it does put the recovery file you have downloaded on your desktop and open a command window, press shift and right click at the same time and click on Open command window here.
Type adb devices, if you see a serial number go on and type adb reboot bootloader, then type fastboot flash recovery [ the name of the recovery file you have just downloaded ]
You can do this just by powering on your phone, no need to be already in fastboot mode, just follow the commands.
Press shift and right click : open command window here : adb devices : adb reboot bootloader : fastboot flash recovery [ the name of the recovery file you have just downloaded, do not forget the .img extension ]
fastboot reboot
Once you have a working TWRP you can flash your corresponding backup and go back to stock. The backup will be flashed from TWRP, search for instructions.
Click to expand...
Click to collapse
can you sir please give me a link for the TWRP and teach em how to flash it ? it would be much appreciated..

zsnorow said:
can you sir please give me a link for the TWRP and teach em how to flash it ? it would be much appreciated..
Click to expand...
Click to collapse
http://teamw.in/project/twrp2 and click on the upper right Get TWRP for your device.
Choose your device recovery and download the adb version. That is the .img
Once you have downloaded TWRP put it on your desktop.
Connect your device with your laptop/pc with the unknown sources checked also the usb debugging checked.
Move your mouse over a free space on your desktop, click once just to be sure there is no app or file clicked.
Then press shift and keep it pressed while you right click your mouse.
Press open command window here
in that command window type : adb devices
if you see a serial number type : adb reboot bootloader
then type : fastboot flash recovery openrecovery-twrp-2.8.1.0-m8.img
fastboot reboot
openrecovery-twrp-2.8.1.0-m8 : This is an example, you will write the name of your recovery but it should be pretty much the same.
Good luck.

Are you familiar with
adb/fastboot commands?

It's a bad idea to mess with your phone if you don't know how to repair it if something goes wrong

spinninbsod said:
It's a bad idea to mess with your phone if you don't know how to repair it if something goes wrong
Click to expand...
Click to collapse
I agree with you but maybe he has done some reading and has fixed it sense he hasn't given us an update

ive tried everything
jball said:
I agree with you but maybe he has done some reading and has fixed it sense he hasn't given us an update
Click to expand...
Click to collapse
i tried everything to fix my phone like sideloading (my phone doesent get recognised when in sideload mode) , pushing a ROM and the flashing it with TWRP (it says that its completed but it doesent work)..
what else can i do .. cant someone do it for me via teamviewer ..

zsnorow said:
i tried everything to fix my phone like sideloading (my phone doesent get recognised when in sideload mode) , pushing a ROM and the flashing it with TWRP (it says that its completed but it doesent work)..
what else can i do .. cant someone do it for me via teamviewer ..
Click to expand...
Click to collapse
What guides/tutorials have you followed to get to the point you are at now.I'm sure someone wouldn't mind teamviewing the whole process but what would you learn by having that done .
From start to finish what have you used?

i honestly cant remember everything i did
jball said:
What guides/tutorials have you followed to get to the point you are at now.I'm sure someone wouldn't mind teamviewing the whole process but what would you learn by having that done .
From start to finish what have you used?
Click to expand...
Click to collapse
i cant remember everything i did but im sure that i followed the tutorials that are on youtube/XDA/android forums correctly

zsnorow said:
i tried everything to fix my phone like sideloading (my phone doesent get recognised when in sideload mode) , pushing a ROM and the flashing it with TWRP (it says that its completed but it doesent work)..
what else can i do .. cant someone do it for me via teamviewer ..
Click to expand...
Click to collapse
You say "pushing a ROM" with what?
You don't push a ROM with TWRP you just flash it.
Or are you talking about pushing the ROM with fastboot?
If you have TWRP than download a stock backup and flash it.
Take a long look at my profile man and if you look just right you will see I've done and asked some stupid things in my travels here on XDA.I can tell you I remember every phone and ridiculous thing I've done to each of them,I still feel crunchy when I think of the mistakes.
We really need more info about the full process.please I'm not trying to offend you and I'm trying to help

zsnorow said:
i cant remember everything i did but im sure that i followed the tutorials that are on youtube/XDA/android forums correctly
Click to expand...
Click to collapse
If you can't remember what you did, or at least even try to list in detail the steps you did as best you can remember; it makes it very hard for anyone to help.
Saying you followed some tutorials on an entire website (3 websites actually) doesn't tell us jack, and isn't any better than telling us nothing.
Its not even clear the current condition of the phone. Your OP says TWRP doesn't work, then a later post says you are trying things with TWRP, so presumably you have TWRP. But since you never stated that, we can only guess.
What happens when you try to adb push or sideload? What error messages, does it make the phone reboot, stuck on boot screen, etc?
TWRP working? Bootloader is unlocked? If yes to both of those, you should be able to just adb push a ROM, or put one on removable SD with a card reader attached to your computer. Than flash the ROM in TWRP.

same thing happened with me but i remember what i did
redpoint73 said:
If you can't remember what you did, or at least even try to list in detail the steps you did as best you can remember; it makes it very hard for anyone to help.
Saying you followed some tutorials on an entire website (3 websites actually) doesn't tell us jack, and isn't any better than telling us nothing.
Its not even clear the current condition of the phone. Your OP says TWRP doesn't work, then a later post says you are trying things with TWRP, so presumably you have TWRP. But since you never stated that, we can only guess.
What happens when you try to adb push or sideload? What error messages, does it make the phone reboot, stuck on boot screen, etc?
TWRP working? Bootloader is unlocked? If yes to both of those, you should be able to just adb push a ROM, or put one on removable SD with a card reader attached to your computer. Than flash the ROM in TWRP.
Click to expand...
Click to collapse
firstly i unlocked my bootloader via htcdev website then i installed twrp recovery successfully and then when i tried to root my phone by installing two zip files (mm-su-boot. & beta super su) i installed these two files and then tried to reboot my phone it opened in fastboot mode only . then i read here about the revolution hd rom installed it successfully but it does not reboot . help needed

farhanakhtar39 said:
firstly i unlocked my bootloader via htcdev website then i installed twrp recovery successfully and then when i tried to root my phone by installing two zip files (mm-su-boot. & beta super su) i installed these two files and then tried to reboot my phone it opened in fastboot mode only . then i read here about the revolution hd rom installed it successfully but it does not reboot . help needed
Click to expand...
Click to collapse
Your device is M8 dual SIM .. mm-su-boot is for M8 single SIM, won't work on your device.
Install custom ROM with support for Dual SIM or restore your stock ROM backup

please can you provide any link of the rom for dual sim addition

farhanakhtar39 said:
please can you provide any link of the rom for dual sim addition
Click to expand...
Click to collapse
Not so sure,
if Sense ROM - https://forum.xda-developers.com/htc-one-m8/development/rom-sense-6-12-401-4-mra58k-stock-t3296066
maybe S.ROM too has dual SIM support, you need to ask in their thread
https://forum.xda-developers.com/ht...the-worlds-first100-m9-port-m8upload-t3064838
if non-Sense ROM
CM13 ROM - https://forum.xda-developers.com/htc-one-m8/development/rom-cyanogenmod-13-0-experimental-t3259068
Nougat ROM -
https://forum.xda-developers.com/showthread.php?t=2753248
https://forum.xda-developers.com/htc-one-m8/development/rom-resurrection-remix-v5-8-0-t3507210
https://forum.xda-developers.com/ht...cyanogenmod-14-1-htc-one-m8-dual-sim-t3507192
There are a few more that support Dual SIM but you have to check & ask in their development thread as I'm not familiar with most of the available custom ROMs .. I don't try most of them

Thnks
Thanks buddy it worked
cm 13 worked for me !
God bless you

If I may jump in on this post and ask some advise my m8s is only booting to fastboot screen it has never been flashed, have tried recovery: nothing just goes back to fastboot, also wiped cache and factory reset: same result..... It has done this 2 times previous but only after restarting phone, usually repeatedly doing reboot it loads but it's been 2 days now and still only getting fastboot screen...plez help

My phone is having similar issues
Stanna16 said:
If I may jump in on this post and ask some advise my m8s is only booting to fastboot screen it has never been flashed, have tried recovery: nothing just goes back to fastboot, also wiped cache and factory reset: same result..... It has done this 2 times previous but only after restarting phone, usually repeatedly doing reboot it loads but it's been 2 days now and still only getting fastboot screen...plez help
Click to expand...
Click to collapse
I recently decided to root and install a custom rom on my old stock sprint HTC one m8. I unlocked the boot loader via HTC Dev website. I then flashed the TWRP recovery. Since doing the latter step, it's been booting into fast boot all the time! Did you ever figure out what was wrong with your phone?

pancho2009 said:
I recently decided to root and install a custom rom on my old stock sprint HTC one m8. I unlocked the boot loader via HTC Dev website. I then flashed the TWRP recovery. Since doing the latter step, it's been booting into fast boot all the time! Did you ever figure out what was wrong with your phone?
Click to expand...
Click to collapse
You only flashed TWRP onto the phone? Or did you root also?
Not nearly enough info to provide the proper help.
Please do fastboot getvar all, and post the results (delete IMEI and serial number before posting).
What version TWRP?
What version SuperSU did you flash (if you got that far)?

[SOLVED] Could not install TWRP

Hi,
I want to enable dualsim on my singlesim device and for that the TWRP has to be installed. After checking many threads, which less or more describe the same steps, I managed to unlock the bootloader and downloaded an "unofficial" twrp image for the Moto Z Play. But on the last step while trying to flash it I got the error "Image not signed or corrupt" and the image is not installed. Here is the output by flashing:
Code:
D:\Programs\Minimal ADB and Fastboot>fastboot.exe flash recovery twrp-3.1.1-0-addison.img
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slot:recovery: not found
target reported max download size of 536870912 bytes
sending 'recovery' (11374 KB)...
OKAY [ 0.255s]
writing 'recovery'...
(bootloader) Image not signed or corrupt
OKAY [ 0.246s]
finished. total time: 0.510s
Is there a way to avoid this error ?

Use: "fastboot flash recovery twrp.img" no quotes. I change the filename to just "twrp.img" less chance of typing something wrong.
and no the .exe you did.

FSabbane said:
Hi,
I want to enable dualsim on my singlesim device and for that the TWRP has to be installed. After checking many threads, which less or more describe the same steps, I managed to unlock the bootloader and downloaded an "unofficial" twrp image for the Moto Z Play. But on the last step while trying to flash it I got the error "Image not signed or corrupt" and the image is not installed. Here is the output by flashing:
Is there a way to avoid this error ?
Click to expand...
Click to collapse
I think it is flashed. After flashing the twrp via fastboot and u see that error then just ignore it, instead directly boot your phone in recovery mode using the volume buttons and look for the word "recovery" then press on power button then it booted there.

Jimi Mack said:
Use: "fastboot flash recovery twrp.img" no quotes. I change the filename to just "twrp.img" less chance of typing something wrong.
and no the .exe you did.
Click to expand...
Click to collapse
I've changed the filename to "twrp.img" and used the command:
Code:
fastboot flash recovery twrp.img
The output is exactly the same as before.

Kap_Tutan said:
I think it is flashed. After flashing the twrp via fastboot and u see that error then just ignore it, instead directly boot your phone in recovery mode using the volume buttons and look for the word "recovery" then press on power button then it booted there.
Click to expand...
Click to collapse
unfortunatly not, after entering the recovery mode I see the message "no command" and I have to hold the power button and press volume up to enter into the Android Recovery menu.

FSabbane said:
unfortunatly not, after entering the recovery mode I see the message "no command" and I have to hold the power button and press volume up to enter into the Android Recovery menu.
Click to expand...
Click to collapse
Try to redownload the twrp again, try to use the lower version not the updated one. And after u flash that then update it with the newest one. Lets see if its work

Kap_Tutan said:
Try to redownload the twrp again, try to use the lower version not the updated one. And after u flash that then update it with the newest one. Lets see if its work
Click to expand...
Click to collapse
I've tried with the following images:
twrp-3.1.1-0-addison.img
twrp-3.1.0-0-addison.img
twrp-3.0.2-0-addison.img
which were downloaded from the url: https://www.androidfilehost.com/?w=files&flid=126925
The result is the same by all of them.
Just to be sure, the image should be copied within the "ADB/Fastboot" folder on my PC and not on the device storage/SD card, isn't it ?

FSabbane said:
I've tried with the following images:
twrp-3.1.1-0-addison.img
twrp-3.1.0-0-addison.img
twrp-3.0.2-0-addison.img
which were downloaded from the url: https://www.androidfilehost.com/?w=files&flid=126925
The result is the same by all of them.
Just to be sure, the image should be copied within the "ADB/Fastboot" folder on my PC and not on the device storage/SD card, isn't it ?
Click to expand...
Click to collapse
Did u unlock bootloader?
Yap it should be in pc adb folder

Kap_Tutan said:
Did u unlock bootloader?
Yap it should be in pc adb folder
Click to expand...
Click to collapse
Yes, I did unlock it with the unlock key received from motorola:
Code:
fastboot oem unlock UNLOCK_KEY
After that a message is displayed at each start:
your device has been unlocked and can't be trusted
ID: bad key
your device will boot in 5 seconds
Click to expand...
Click to collapse

FSabbane said:
Yes, I did unlock it with the unlock key received from motorola:
After that a message is displayed at each start:
Click to expand...
Click to collapse
After flashing twrp do not boot the phone otherwise the stock recovery will over write twrp,
After twrp is flashed while still in fastboot mode, use the volume buttons and select recovery on the menu.

flashallthetime said:
After flashing twrp do not boot the phone otherwise the stock recovery will over write twrp,
After twrp is flashed while still in fastboot mode, use the volume buttons and select recovery on the menu.
Click to expand...
Click to collapse
That was it, at each boot the recovery partition was overwritten.
Thank you very much for the help !

still doesn't work for me
FSabbane said:
That was it, at each boot the recovery partition was overwritten.
Thank you very much for the help !
Click to expand...
Click to collapse
I am still getting error saying your device is unlocked can't be trusted and will be restarted in 5 seconds,
please help me out. Also need adb zip file

velpoori said:
I am still getting error saying your device is unlocked can't be trusted and will be restarted in 5 seconds,
please help me out. Also need adb zip file
Click to expand...
Click to collapse
This is not an error. If your bootloader is unlocked this message will display at every boot.

velpoori said:
I am still getting error saying your device is unlocked can't be trusted and will be restarted in 5 seconds,
please help me out. Also need adb zip file
Click to expand...
Click to collapse
As Fandroid mentioned, it's not an error. My device also diplays it at startup.
I've added to this post a zip file that contains adb, fastboot and twrp version used to configure my device.

FSabbane said:
As Fandroid mentioned, it's not an error. My device also diplays it at startup.
I've added to this post a zip file that contains adb, fastboot and twrp version used to configure my device.
Click to expand...
Click to collapse
Have you installed twrp successfully and which OS r u running on your moto z play right now, how is it?

velpoori said:
Have you installed twrp successfully and which OS r u running on your moto z play right now, how is it?
Click to expand...
Click to collapse
I wanted twrp just to create a backup and configure my device to support dualsim. Therefore and as mentioned in a previous post, TWRP is installed only momentarly and after a reboot it would be overwritten.
My OS is the Moto Android 7.0.
What is the issue that you have now ?

FSabbane said:
I wanted twrp just to create a backup and configure my device to support dualsim. Therefore and as mentioned in a previous post, TWRP is installed only momentarly and after a reboot it would be overwritten.
My OS is the Moto Android 7.0.
What is the issue that you have now ?
Click to expand...
Click to collapse
As I told earlier I am not able to install twrp due to which I am not able to install custom rom. I tried many times to install twrp, everytime it showed "image is not found" as you guys said I tried going recovery but again it shows you already unlocked boot loader, your device can't be trusted then says " your device will reboot in 5 seconds" this is what my issue is.

velpoori said:
As I told earlier I am not able to install twrp due to which I am not able to install custom rom. I tried many times to install twrp, everytime it showed "image is not found" as you guys said I tried going recovery but again it shows you already unlocked boot loader, your device can't be trusted then says " your device will reboot in 5 seconds" this is what my issue is.
Click to expand...
Click to collapse
So that we can see where you're stuck at the moment, please follow this guide and tell us which step didn't work :
https://www.obeygeek.com/install-twrp-recovery-on-moto-z-play/
P.S.: use the adb, fastboot and twrp image I've sent you in the previous post.

FSabbane said:
So that we can see where you're stuck at the moment, please follow this guide and tell us which step didn't work :
https://www.obeygeek.com/install-twrp-recovery-on-moto-z-play/
P.S.: use the adb, fastboot and twrp image I've sent you in the previous post.
Click to expand...
Click to collapse
I will try once I reach home by 6pm, you are so helpful thank you...

FSabbane said:
I wanted twrp just to create a backup and configure my device to support dualsim. Therefore and as mentioned in a previous post, TWRP is installed only momentarly and after a reboot it would be overwritten.
Click to expand...
Click to collapse
It makes no sense then to flash it. Why don't you just use
fastboot boot twrp.img
when you want to start it? Then no flash will be involved, and twrp will be just booted for this single usage. You can repeat this whenever you need it.

Flash Question

I rooted my Unlocked xl 2 using a method I found online. Used it a couple of days rooted and decided to go back to stock so....
I downloaded the factory image, ran the flash -all.bat and everything was good. Next I went back to my boot loader to re lock it, ran the command , selected yes.
After I hit yes to re lock the boot loader I got the following error. COULD NOT FIND A VALID OPERATING SYSTEM.
Any help would be greatly appreciated.

skullymullins said:
I rooted my Unlocked xl 2 using a method I found online. Used it a couple of days rooted and decided to go back to stock so....
I downloaded the factory image, ran the flash -all.bat and everything was good. Next I went back to my boot loader to re lock it, ran the command , selected yes.
After I hit yes to re lock the boot loader I got the following error. COULD NOT FIND A VALID OPERATING SYSTEM.
Any help would be greatly appreciated.
Click to expand...
Click to collapse
1. fastboot flashing unlock
2. fastboot flashing unlock_critical
3. Reboot the phone if prompted
4. flash firmware using flash-all script again. Read the results and watch for errors that might explain the problem and which partition (a or b) it is flashing to.
5. fastboot --set-active=b (or a. Just set it to whichever partition the script was not flashing to.)
6. flash firmware with flash-all script again to flash the alternate partition

Ok Thanks Ill give that a try..

skullymullins said:
Ok Thanks Ill give that a try..
Click to expand...
Click to collapse
And don't relock until you are 100 percent certain it is ok. I suggest waiting until you get the next update to be sure. Actually I suggest not relocking it but if you insist then wait and make sure the next update goes ok.

TonikJDK said:
And don't relock until you are 100 percent certain it is ok. I suggest waiting until you get the next update to be sure. Actually I suggest not relocking it but if you insist then wait and make sure the next update goes ok.
Click to expand...
Click to collapse
When I tried the command . fastboot --set-active b i got the unknown command error

skullymullins said:
When I tried the command . fastboot --set-active b i got the unknown command error
Click to expand...
Click to collapse
You rooted your phone with a method you found online??? Hmmmm, that's curious. Hope that didn't do any internal damage. Anyways, when your in fastboot mode, and type in "fastboot devices" do you get your device ID number??

TheSt33v said:
1. fastboot flashing unlock
2. fastboot flashing unlock_critical
3. Reboot the phone if prompted
4. flash firmware using flash-all script again. Read the results and watch for errors that might explain the problem and which partition (a or b) it is flashing to.
5. fastboot --set-active b (or a. Just set it to whichever partition the script was not flashing to.)
6. flash firmware with flash-all script again to flash the alternate partition
Click to expand...
Click to collapse
I told one person that was having trouble also to instead of doing step 4 instead download Deuces bootloop kit and allow it to flash your phone for you because I noticed a few people were not flashing in fastboot properly the pixel is different from the prior phones they are used to there are many more Sig files that were not all getting flashed thoroughly causing issues. Deuces kit does it all perfect and it's pretty easy to set up and go

skullymullins said:
When I tried the command . fastboot --set-active b i got the unknown command error
Click to expand...
Click to collapse
Maybe that command works also. I use
Fastboot --set-active=b

skullymullins said:
When I tried the command . fastboot --set-active b i got the unknown command error
Click to expand...
Click to collapse
Sorry, the previous post is right. You need an = in there.

Honor 7x with Lineage and TWRP, stuck in limbo

Hi all,
I installed TWRP on my Honor 7x, that went well.
Yesterday I decided to try to get Lineage working so:
- I installed EMUI 8, that went pretty smooth
- I installed Lineage OS 15.1. (without GApps)
- I flashed TWRP.
The issue I have now is that:
1) I can't install any APK in Lineage. Probably needs a factory reset/dalvik cache wipe.
2) I can't boot into TWRP. It stays stuck on the splash screen forever. This also means I can't install OpenGapps, SuperUser access (afaik), or anything else that requires root.
3) The bootloader is saying "FRP: Locked", which means I can't flash a new TWRP or a different ROM. When I try it fails with "command not allowed"
3) "fastboot oem unlock" fails saying I need to enable it in the developer options, but it's grayed out in the developer options because it's already unlocked.
4) I wanted to try the "dload" method but I can't find a good explanation on how to do it, and Huawei recently took all their downloads down, which means I can't find any UPDATE.app even if I knew how.
5) The other solution that *might* work is using "fastboot oem frp-unlock", but I need an unlock code for that (I assume the same one that you request for an OEM unlock from Huawei), and Huawei closed down the site that generated the codes.
So I'm stuck in a weird limbo where I can't move forward (install Gapps and use my phone as normal) nor backwards (go back to EMUI8).
Does anyone have any idea how I can fix this situation?

Shadowsalyer said:
Hi all,
I installed TWRP on my Honor 7x, that went well.
Yesterday I decided to try to get Lineage working so:
- I installed EMUI 8, that went pretty smooth
- I installed Lineage OS 15.1. (without GApps)
- I flashed TWRP.
The issue I have now is that:
1) I can't install any APK in Lineage. Probably needs a factory reset/dalvik cache wipe.
2) I can't boot into TWRP. It stays stuck on the splash screen forever. This also means I can't install OpenGapps, SuperUser access (afaik), or anything else that requires root.
3) The bootloader is saying "FRP: Locked", which means I can't flash a new TWRP or a different ROM. When I try it fails with "command not allowed"
3) "fastboot oem unlock" fails saying I need to enable it in the developer options, but it's grayed out in the developer options because it's already unlocked.
4) I wanted to try the "dload" method but I can't find a good explanation on how to do it, and Huawei recently took all their downloads down, which means I can't find any UPDATE.app even if I knew how.
5) The other solution that *might* work is using "fastboot oem frp-unlock", but I need an unlock code for that (I assume the same one that you request for an OEM unlock from Huawei), and Huawei closed down the site that generated the codes.
So I'm stuck in a weird limbo where I can't move forward (install Gapps and use my phone as normal) nor backwards (go back to EMUI8).
Does anyone have any idea how I can fix this situation?
Click to expand...
Click to collapse
small chance you enable root from developer options. (i think it will be adb only)
if so , maybe can use adb shell and "dd" to write recovery to correct partition.
problem is many of the available twrp do not boot on custom rom .
example code. (if you do wrong , it may be bad)
Code:
dd if=/ext_sdcard/twrp_Recovery_ramdisk.img of=/dev/block/mmcblk0p32

It seems like I'm allowed to use dd in ADB shell, but before I run it, what do you mean by " problem is many of the available twrp do not boot on custom rom . "? I thought recovery was independent of the ROM? And does it mean flashing twrp like that could brick my phone?

Shadowsalyer said:
It seems like I'm allowed to use dd in ADB shell, but before I run it, what do you mean by " problem is many of the available twrp do not boot on custom rom . "? I thought recovery was independent of the ROM? And does it mean flashing twrp like that could brick my phone?
Click to expand...
Click to collapse
Like what you have , twrp stuck on splash screen

I managed to unlock the FRP with DC-unlocker. Sucks that it costs money but it worked!
Now Im stuck in a TWRP boot loop though.

Shadowsalyer said:
I managed to unlock the FRP with DC-unlocker. Sucks that it costs money but it worked!
Now Im stuck in a TWRP boot loop though.
Click to expand...
Click to collapse
At this point you should have access to fastboot though, right? I'd try a different TWRP instead. Perhaps try this one: https://drive.google.com/file/d/1ZYo7Ndte3vlLcUSadD6jIgfBi1oxa0Pb/view?usp=drivesdk

Just to clarify, it gets stuck on TWRP splash screen. When I turn off the phone, it immediately boots up again into TWRP. I tried getting into fastboot mode with all kinds of combinations of button presses, but no luck. Not even Volume Up + USB cable works

smokinjoe2122 said:
At this point you should have access to fastboot though, right? I'd try a different TWRP instead. Perhaps try this one: https://drive.google.com/file/d/1ZYo7Ndte3vlLcUSadD6jIgfBi1oxa0Pb/view?usp=drivesdk
Click to expand...
Click to collapse
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.

Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
I have seen this happen before , solution was to wait for dead battery, or disassemble to unplug battery
---------- Post added at 04:51 PM ---------- Previous post was at 04:47 PM ----------
Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
This is because after the frp unlock, it needed to see a factory reset, and it usually needs to be done with stock recvery.
So will have to wait till battery is dead and and plug in usb while holding volume button. Should then load to fastboot. Where it is best to flash stock recovery to clear the recovery bootloop. The bootloop is do to the fact yo unlocked frp and now phone needs to wipe/data

Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
it sucks this happened to yu but im glad i am not the only one that dc-unlocker deleted my fastboot after i unlocked the frp and i cant boot fastboot for nothing if you find a solution please contact me. my phone is doing the exact same thing booting straight too twrp no mater what combinations i use

dcraffam said:
it sucks this happened to yu but im glad i am not the only one that dc-unlocker deleted my fastboot after i unlocked the frp and i cant boot fastboot for nothing if you find a solution please contact me. my phone is doing the exact same thing booting straight too twrp no mater what combinations i use
Click to expand...
Click to collapse
i just took mine apart and discconected the battery and still no luck that program deleted my fastboot

Please can you tell me the process to install twrp I have the L24

I waited all the way till the battery drained, stuck in the USB, and it booted to ROM! Sadly it immediately shut off again because the battery is dead (even with keeping the USB in). I'm going to keep trying though.

I can't get into fastboot mode. I can get into the ROM by letting the battery drain completely on the TWRP splashscreen, and then sticking in the USB cable. However, no button combination or "adb reboot bootloader" or rebooting to bootloader from the ROM brings me to the bootloader. I wonder if it's still there. Any ideas?

Shadowsalyer said:
I can't get into fastboot mode. I can get into the ROM by letting the battery drain completely on the TWRP splashscreen, and then sticking in the USB cable. However, no button combination or "adb reboot bootloader" or rebooting to bootloader from the ROM brings me to the bootloader. I wonder if it's still there. Any ideas?
Click to expand...
Click to collapse
Seems to be a f-up situation either way.
You have adb DD available, found out before.
Don't know if maybe flashing stock recovery is good idea at this point.
I think fastboot.img can be flashed with DD too, but don't try till someone can confirm.
If flash stock recovery clears the loops, maybe best to do full-ota manual flashing.

I managed to get an UPDATE.APP file and extract fastboot.img from it, as well as all the other .img files. If someone can tell me what to flash and how (with dd), I think Im set.

Shadowsalyer said:
I managed to get an UPDATE.APP file and extract fastboot.img from it, as well as all the other .img files. If someone can tell me what to flash and how (with dd), I think Im set.
Click to expand...
Click to collapse
Fastboot.img is the large part the bootloader. If flashing it goes bad, might be dead phone after, just rember that.
Will add a list of partition names and command s for you soon.
here is a list of oreo partitions and there /dev/blk/** number
and here is an example of code to save images with dd assuming you put the images on your extrnal-sdcard in folder called oreo-images
Code:
dd if=/dev/block/mmcblk0p5 of=/mnt/ext_sdcard/oreo-images/fastboot.img
Do that save first and compare the md5 of the file from update.app to this file.
or just check the md5 before making the copy
Code:
adb shell md5sum /dev/block/mmcblk0p5
If you are conviced you need to flash the images, here is example of writing the image assuming files are in sdcard folder oreo-update-images
Code:
dd if=/mnt/ext_sdcard/oreoupdate-images/fastboot.img of=/dev/block/mmcblk0p5
As I have said, this might be bad advise , I have not done fastboot.img flashing before. But on other devices it is same as lk.img or uboot.img, There is danger in flashing it incorrectly. That is why my suggestion was to flash no-check-recovery and do manael update with "echo -update_package" commands.
Along with the statement that fastboot.img is similar to lk.img or uboot.img on other phones, Your fastboot cannot be gone. because phone boots.
but do let us know how it goes.

I agree it would be better to flash recovery if possible. I assume I need the NoCheck-Recovery image from this thread? https://forum.xda-developers.com/honor-7x/how-to/manual-update-to-oreo-beta-emui-8-bnd-t3767044
And what partition do I have to flash it to? I'm guessing either /dev/block/mmcblk0p28 (erecovery ramdisk) or /dev/block/mmcblk0p32 (recovery ramdisk)? I'm not sure what the difference is between erecovery and normal recovery.
(didn't flash fastboot yet, wanted to see if recovery was doable).

Shadowsalyer said:
I agree it would be better to flash recovery if possible. I assume I need the NoCheck-Recovery image from this thread? https://forum.xda-developers.com/honor-7x/how-to/manual-update-to-oreo-beta-emui-8-bnd-t3767044
And what partition do I have to flash it to? I'm guessing either /dev/block/mmcblk0p28 (erecovery ramdisk) or /dev/block/mmcblk0p32 (recovery ramdisk)? I'm not sure what the difference is between erecovery and normal recovery.
(didn't flash fastboot yet, wanted to see if recovery was doable).
Click to expand...
Click to collapse
To recovery_ramdisk. 32
What about check md5 of fastboot partition, that will be helpful to know if it did get wiped out.?

Hmm seems like I'm not allowed to use dd after all:
HWBND-H:/ $ dd if=/storage/7C96-7E17/BND-RECOVERY-NoCheck.img of=/dev/block/mmcblk0p32
dd: /dev/block/mmcblk0p32: Permission denied
And here I was thinking I was close to solving it...
Also can't run md5sum on the fastboot partition, since that needs root as well.

Think i just bricked my phone

I was following the steps on the rooting process with twrp and I got twrp to boot but i couldn't boot into the system and now it's just stuck in download mode is there any way to fix it

Djcall11 said:
I was following the steps on the rooting process with twrp and I got twrp to boot but i couldn't boot into the system and now it's just stuck in download mode is there any way to fix it
Click to expand...
Click to collapse
Download the factory images.
Run flasg_all.bat.
If you dont want your data partition to be formatted, then edit the .bat file and remove the line where it says "erase userdata". You can also remove tge last line that reads "fastboot reboot".
When rooting, i always boot into twrp using the image and flash both twrp zip and magisk zip in one go.

iliais347 said:
Download the factory images.
Run flasg_all.bat.
If you dont want your data partition to be formatted, then edit the .bat file and remove the line where it says "erase userdata". You can also remove tge last line that reads "fastboot reboot".
When rooting, i always boot into twrp using the image and flash both twrp zip and magisk zip in one go.
Click to expand...
Click to collapse
i have to edit the bat file and add -i 0x1532 to every command anyway for the command to work

so... the razer loading green effect is happening but it hasn't passed that it just keeps going
should I just put back the command to delete the user data

Have you unlocked the critical portion of the bootloader? (First thing I always ask)
If yes then yeah just wipe the whole thing.

Roxas598 said:
Have you unlocked the critical portion of the bootloader? (First thing I always ask)
If yes then yeah just wipe the whole thing.
Click to expand...
Click to collapse
welp the phone booted but it just stays on the loading screen and when I restart it just goes straight to download mode
I did unlock_critical and it just tells me that the device is already unlocked
I don't really know what else I can do from here

Of both bootloader portions are unlocked it should just be a case of running the flash all script from the factory images and you're good to go :S only other thing I can suggest to make sure there's nothing bad in there and in fastboot wiping user data again.

Roxas598 said:
Of both bootloader portions are unlocked it should just be a case of running the flash all script from the factory images and you're good to go :S only other thing I can suggest to make sure there's nothing bad in there and in fastboot wiping user data again.
Click to expand...
Click to collapse
I ran the script how it was and I just get stuck at the green effect loading I will try some other commands and I'm about to try the 7.1.1 mr3 rom to see if that work

so using the 7.1.1 mr3 worked i finally have my phone back thank guy for the help

Djcall11 said:
i have to edit the bat file and add -i 0x1532 to every command anyway for the command to work
Click to expand...
Click to collapse
Why is that? I didnt have to do that.
What does that command do?