Database Users

[Q] How to restore DROID RAZR M back to stock JB 4.1.2 from the kitkat 4.4.2

Can any one help me to restore my XT907 back to stock JB 4.1.2 from the stock kitkat 4.4.2 update?
My current System version is: 183.46.10.XT907.Veryzon.en.US
Android Version: 4.4.2
Baseband Version: SM_BP_101031.042.32.86P
Kernal Version: 3.4.42-g5170b6b
[email protected] #1
Fri May 2 00:30:06 PDT 2014
Build Number: KDA20.62-10.1
Build Date: Fri May 2 00:20:25 PDT 2014
Please help me.. Thanks in advance...

Wouldn't recommend you try it on a locked bootloader.
Those that are unlocked shouldn't have any issues.

Technically, with a locked bootloader, if Fastboot will allow you to downgrade, then it should be possible.
You'd have to boot into Fastboot, then run the command:
fastboot flash system system.img
Where system.img is the 4.1.2 image file extracted from the fxz file. If it won't let you do this, then downgrade isn't possible. It will likely say failed flash and you'll have to flash something to kick the phone out of fastboot like logo.img.
You could also try RSDLite and try to flash the 4.1.2 fxz, but I doubt that will work because bootloader and such are not downgradeable and it will likely fail.

GnatGoSplat said:
Technically, with a locked bootloader, if Fastboot will allow you to downgrade, then it should be possible.
You'd have to boot into Fastboot, then run the command:
fastboot flash system system.img
Where system.img is the 4.1.2 image file extracted from the fxz file. If it won't let you do this, then downgrade isn't possible. It will likely say failed flash and you'll have to flash something to kick the phone out of fastboot like logo.img.
You could also try RSDLite and try to flash the 4.1.2 fxz, but I doubt that will work because bootloader and such are not downgradeable and it will likely fail.
Click to expand...
Click to collapse
Thanks for ur reply..
My bootloader is locked. I want to try downgrade to stock 4.1.2. Can u please send me the link to download stock 4.1.2 img and exact steps to downgrade?
Thnaks so much in advance..

kulsforu said:
Thanks for ur reply..
My bootloader is locked. I want to try downgrade to stock 4.1.2. Can u please send me the link to download stock 4.1.2 img and exact steps to downgrade?
Thnaks so much in advance..
Click to expand...
Click to collapse
You can get them here:
http://sbf.droid-developers.org/phone.php?device=8
You can extract the original system.img from the archive as well as logo.img in case the phone doesn't allow you to flash system.img, you can use logo.img to kick the phone out of Fastboot. You will need to install Motorola ADB drivers on your computer in advance, and also need a fastboot.exe file which I think you can find via Google, but if you have ever rooted your phone in the past, usually that also came with fastboot.
Anyway, get into fastboot mode by turning off the phone, then holding down all 3 buttons. Use vol- to select Fastboot and vol+ to choose it. Phone should boot into fastboot.
Connect to PC and issue command:
fastboot flash system system.img
If it works, the phone should be downgraded. If it says flash failed, then downgrade isn't possible. In that case, if the phone is stuck in fastboot mode and can't be rebooted, issue this command to get out of fastboot.
fastboot flash logo logo.img
That should let it reboot as normal.
I actually doubt it's possible to downgrade, but I haven't tried it myself so I can't say for sure.

GnatGoSplat said:
You can get them here:
http://sbf.droid-developers.org/phone.php?device=8
You can extract the original system.img from the archive as well as logo.img in case the phone doesn't allow you to flash system.img, you can use logo.img to kick the phone out of Fastboot. You will need to install Motorola ADB drivers on your computer in advance, and also need a fastboot.exe file which I think you can find via Google, but if you have ever rooted your phone in the past, usually that also came with fastboot.
Anyway, get into fastboot mode by turning off the phone, then holding down all 3 buttons. Use vol- to select Fastboot and vol+ to choose it. Phone should boot into fastboot.
Connect to PC and issue command:
fastboot flash system system.img
If it works, the phone should be downgraded. If it says flash failed, then downgrade isn't possible. In that case, if the phone is stuck in fastboot mode and can't be rebooted, issue this command to get out of fastboot.
fastboot flash logo logo.img
That should let it reboot as normal.
I actually doubt it's possible to downgrade, but I haven't tried it myself so I can't say for sure.
Click to expand...
Click to collapse
Thank u so much my friend, I need to clear that I m using this phone in India with Reliance CDMA network. If downgrade will succeed then will it in verizon locked condition or it will remain unlocked for global use? Also I need to add that I have never unlocked my bootloader or rooted my phone.

kulsforu said:
Thank u so much my friend, I need to clear that I m using this phone in India with Reliance CDMA network. If downgrade will succeed then will it in verizon locked condition or it will remain unlocked for global use? Also I need to add that I have never unlocked my bootloader or rooted my phone.
Click to expand...
Click to collapse
I think it would stay unlocked since you wouldn't be reflashing the radio.
It is easy enough to re-unlock if that should get reversed, however.

Ah, nevermind. Don't bother to try it. Even if you could succeed, you'd end up with black screen after the logo. The newer bootloaders will not allow Jellybean to boot. There is no way to downgrade. KitKat is a one way road with a locked BL. Sorry!

GnatGoSplat said:
Ah, nevermind. Don't bother to try it. Even if you could succeed, you'd end up with black screen after the logo. The newer bootloaders will not allow Jellybean to boot. There is no way to downgrade. KitKat is a one way road with a locked BL. Sorry!
Click to expand...
Click to collapse
:crying::crying::crying::crying::crying:

Sorry for the bad news. I'm in the same boat now too. Thought I would experiment with ways to preserve root, and long story short, now I'm stuck on an unrooted phone on stock KK with locked BL.
Why do you want to downgrade? If it's to be rooted, sorry, no solution for that. If there is some other issue, maybe there is a solution for that specific issue.

GnatGoSplat said:
Sorry for the bad news. I'm in the same boat now too. Thought I would experiment with ways to preserve root, and long story short, now I'm stuck on an unrooted phone on stock KK with locked BL.
Why do you want to downgrade? If it's to be rooted, sorry, no solution for that. If there is some other issue, maybe there is a solution for that specific issue.
Click to expand...
Click to collapse
The issue is my CDMA data is not working after upgrade to kitkat. I m from India and using Reliance CDMA sim. Before update, everything was working perfect. But now only data(EVDO or 1x) is not working. GSM data(3G & 2G) is working.
Please help if u have any solution for this issue.

GnatGoSplat said:
You can get them here:
http://sbf.droid-developers.org/phone.php?device=8
You can extract the original system.img from the archive as well as logo.img in case the phone doesn't allow you to flash system.img, you can use logo.img to kick the phone out of Fastboot. You will need to install Motorola ADB drivers on your computer in advance, and also need a fastboot.exe file which I think you can find via Google, but if you have ever rooted your phone in the past, usually that also came with fastboot.
Anyway, get into fastboot mode by turning off the phone, then holding down all 3 buttons. Use vol- to select Fastboot and vol+ to choose it. Phone should boot into fastboot.
Connect to PC and issue command:
fastboot flash system system.img
If it works, the phone should be downgraded. If it says flash failed, then downgrade isn't possible. In that case, if the phone is stuck in fastboot mode and can't be rebooted, issue this command to get out of fastboot.
fastboot flash logo logo.img
That should let it reboot as normal.
I actually doubt it's possible to downgrade, but I haven't tried it myself so I can't say for sure.
Click to expand...
Click to collapse
I'm also on official KK with locked bootloader, Can i flash kk modified system.img via this method ?

Prohyper said:
I'm also on official KK with locked bootloader, Can i flash kk modified system.img via this method ?
Click to expand...
Click to collapse
Sorry, with locked BL, you can't flash modified system.img or older system.img. I tried it just to make sure, and the phone wouldn't allow it.

GnatGoSplat said:
Sorry for the bad news. I'm in the same boat now too. Thought I would experiment with ways to preserve root, and long story short, now I'm stuck on an unrooted phone on stock KK with locked BL.
Why do you want to downgrade? If it's to be rooted, sorry, no solution for that. If there is some other issue, maybe there is a solution for that specific issue.
Click to expand...
Click to collapse
The issue is my CDMA data is not working after upgrade to kitkat. I m from India and using Reliance CDMA sim. Before update, everything was working perfect. But now only data(EVDO or 1x) is not working. GSM data(3G & 2G) is working.
Please help if u have any solution for this issue.

kulsforu said:
The issue is my CDMA data is not working after upgrade to kitkat. I m from India and using Reliance CDMA sim. Before update, everything was working perfect. But now only data(EVDO or 1x) is not working. GSM data(3G & 2G) is working.
Please help if u have any solution for this issue.
Click to expand...
Click to collapse
Good news is that major developments happened a month ago. :good:
You can now root AND unlock bootloader on KitKat. I think you can find the info you need in this thread:
http://forum.xda-developers.com/showthread.php?t=2783806
Once you have bootloader unlocked, you can downgrade back to JB. I have tried it and can confirm it works.
Good luck!

GnatGoSplat said:
Good news is that major developments happened a month ago. :good:
You can now root AND unlock bootloader on KitKat. I think you can find the info you need in this thread:
http://forum.xda-developers.com/showthread.php?t=2783806
Once you have bootloader unlocked, you can downgrade back to JB. I have tried it and can confirm it works.
Good luck!
Click to expand...
Click to collapse
Thanks much for update..
I can not getting the method. Actually I m new with these things.
Can you please explain how to use tr.apk?
Thanks in Advance..

kulsforu said:
Thanks much for update..
I can not getting the method. Actually I m new with these things.
Can you please explain how to use tr.apk?
Thanks in Advance..
Click to expand...
Click to collapse
You just run it and let it do its thing. Your phone should be rooted once it has rebooted. You can verify with any rootchecker app.
Then install and run Motopocalypse.apk to unlock your bootloader.
You can the use RSDLite to flash back to JellyBean using the JB fxz file. You will need to edit the xml file in the fxz file, removing the lines with gpt.bin and tz.mbn.

GnatGoSplat said:
You just run it and let it do its thing. Your phone should be rooted once it has rebooted. You can verify with any rootchecker app.
Then install and run Motopocalypse.apk to unlock your bootloader.
You can the use RSDLite to flash back to JellyBean using the JB fxz file. You will need to edit the xml file in the fxz file, removing the lines with gpt.bin and tz.mbn.
Click to expand...
Click to collapse
Thanks.. I m getting you.. But I m not using verizon network. My Razr M is unlocked for both CDMA and GSM carrier. I m using my Razr M in India and both CDMA and GSM are working at present. only DATA in CDMA is not working.
My question is will it be remain unlocked for both CDMA and GSM career in India after flashing back stock JELLY BEAN?
Thanks in Advance..

kulsforu said:
My question is will it be remain unlocked for both CDMA and GSM career in India after flashing back stock JELLY BEAN?
Click to expand...
Click to collapse
I believe so, yes.

GnatGoSplat said:
I believe so, yes.
Click to expand...
Click to collapse
Thanks.
Can you please send link to download JB 4.1.2 fxz file. and step by step instruction to flash the file.?

Strange problem with Re-Locking bootloader

Hi guyz, i've a little problem here.
I've to Lock my bootloader. Now i did it several times, with different tools too. Now:
If i use correct droidboot version (lollipop one) and flash it, the bootloader is not (secure), so not locked.
But if i try with a tool and it flashes the KK fastboot, it works, it's relocked.
Can you tell me why? Thanks!

steakhutzeee said:
Hi guyz, i've a little problem here.
I've to Lock my bootloader. Now i did it several times, with different tools too. Now:
If i use correct droidboot version (lollipop one) and flash it, the bootloader is not (secure), so not locked.
But if i try with a tool and it flashes the KK fastboot, it works, it's relocked.
Can you tell me why? Thanks!
Click to expand...
Click to collapse
Seems the Lollipop fastboot doesn't have the signature check that kitkat fastboot has.
But, even you can flash custom files with locked bootloader and lollipop fastboot, the system don't boot, stucks at USB logo, so it means the bootloader is locked.

leonardohenrique10 said:
Seems the Lollipop fastboot doesn't have the signature check that kitkat fastboot has.
But, even you can flash custom files with locked bootloader and lollipop fastboot, the system don't boot, stucks at USB logo, so it means the bootloader is locked.
Click to expand...
Click to collapse
Thanks! You sure about this? I've to return the phone to amazon, and i would to be sure of this :silly:

steakhutzeee said:
Thanks! You sure about this? I've to return the phone to amazon, and i would to be sure of this :silly:
Click to expand...
Click to collapse
Yes, I tested in my phone, flashed custom kernel with locked bootloader and fastboot from Lollipop .87, flash sucessfully, but when I try to boot... USB logo.
Only KitKat fastboot has signature check.

leonardohenrique10 said:
Yes, I tested in my phone, flashed custom kernel with locked bootloader and fastboot from Lollipop .87, flash sucessfully, but when I try to boot... USB logo.
Only KitKat fastboot has signature check.
Click to expand...
Click to collapse
Ok, thank you
In fastboot (lollipop) i've an (?) next to signature and other values i don't remeber. You too?

steakhutzeee said:
Ok, thank you
In fastboot (lollipop) i've an (?) next to signature and other values i don't remeber. You too?
Click to expand...
Click to collapse
Yes, same on my device. I think it's normal.

Yes, fastboot mode of lollipop firmware on ZenFone 5 / 6 is able to flash custom kernel / recovery, but it won't boot until bootloader unlocked.

Zenfone 6 Z002 Bootloader Problem

After unlocking bootloader my device shows screen like scanlines on boot - recovery - droidboot

I guess u flashed a wrong boot img..
try to connect the fone in that state and flash a stock boot image via adb fastboot....

prathmesh pande said:
I guess u flashed a wrong boot img..
try to connect the fone in that state and flash a stock boot image via adb fastboot....
Click to expand...
Click to collapse
this is not about boot.img. With locked bootloader my phone works normal

Download this: http://forum.xda-developers.com/attachment.php?attachmentid=3383056&d=1435562997
Extract in fastboot folder
Enter in Fastboot mode
Connect your phone to USB
type: fastboot flash splashscreen splash.bin

leonardohenrique10 said:
Download this: http://forum.xda-developers.com/attachment.php?attachmentid=3383056&d=1435562997
Extract in fastboot folder
Enter in Fastboot mode
Connect your phone to USB
type: fastboot flash splashscreen splash.bin
Click to expand...
Click to collapse
yes, he flash bad splash.bin

i think this is about my device model "z002". i tried bootloader unlocker app from asus. it makes splashscreen white but still same issue

q0kHaN said:
i think this is about my device model "z002". i tried bootloader unlocker app from asus. it makes splashscreen white but still same issue
Click to expand...
Click to collapse
try unofficial unlocker
Sent from my ASUS_T00F using XDA-Developers mobile app

paktepu said:
try unofficial unlocker
Sent from my ASUS_T00F using XDA-Developers mobile app
Click to expand...
Click to collapse
i took screenshots with unofficial unlocker

q0kHaN said:
i took screenshots with unofficial unlocker
Click to expand...
Click to collapse
i dont know if z002 is different from another z6. As i know they have same ifwi in z5 ifwi zip. Get the newest ifwi.zip for lock and if.bin for unlock.
Sent from my ASUS_T00F using XDA-Developers mobile app

Would love to have the link from where you downloaded your z002 boot loader unlock tool.
Been searching for years on how to unlock bootloader for z002 ZenFone 6
Q0kHan

dmilz said:
Would love to have the link from where you downloaded your z002 boot loader unlock tool.
Been searching for years on how to unlock bootloader for z002 ZenFone 6
Q0kHan
Click to expand...
Click to collapse
use any bootloader unlocker for zenfone 6 they all works but you have to flash jellybean fastboot first

q0kHaN said:
use any bootloader unlocker for zenfone 6 they all works but you have to flash jellybean fastboot first
Click to expand...
Click to collapse
thanks . I wouldn't mind being spoon fed as to where i can
Download the jellybean firmware or jb fastboot.

dmilz said:
thanks . I wouldn't mind being spoon fed as to where i can
Download the jellybean firmware or jb fastboot.
Click to expand...
Click to collapse
Here

q0kHaN said:
Here
Click to expand...
Click to collapse
thank you

q0kHaN said:
use any bootloader unlocker for zenfone 6 they all works but you have to flash jellybean fastboot first
Click to expand...
Click to collapse
am back again, flashed jellybean fastboot.
after bootloader unlock phone shows only coloured lines when boot to fastboot, recovery even to system. any further help?

dmilz said:
am back again, flashed jellybean fastboot.
after bootloader unlock phone shows only coloured lines when boot to fastboot, recovery even to system. any further help?
Click to expand...
Click to collapse
Do you read first post ? That is exactly same problem with me

q0kHaN said:
Do you read first post ? That is exactly same problem with me
Click to expand...
Click to collapse
i see. We are on the same boat .
Hope a solution/workaround will be found.
Thanks for your time

https://forum.xda-developers.com/android/development/bootloader-zenfone-6-a601cg-bootloader-t3569976

stucked in bootloop

I'm using moto g4 plus. i'm stucked in bootloop and my bootloader is locked so i'm not able to flash stock through fastboot mode....is there any method to flash rom using edl cable????
please help me to get out of this problem as soon as possible.
Thanks in advance

yshiv666 said:
I'm using moto g4 plus. i'm stucked in bootloop and my bootloader is locked so i'm not able to flash stock through fastboot mode....is there any method to flash rom using edl cable????
please help me to get out of this problem as soon as possible.
Thanks in advance
Click to expand...
Click to collapse
Flashing stock rom has nothing to do with locked/unlocked bootloader, do you get any errors or what happens while flashing ?
Why it happened ?
Are you trying to flash latest update september's one? If not then try with it (see guide section for steps, download and more info)

Updating Huawei P9 Lite h3g/it to Nougat

Hi everyone. I've already rooted my Huawei P9 lite and now I'd like to update it to Android Nougat.
I tried to install different versions of firmware through OTA, but none of them worked out well. I'm starting to think that this is due to the firmware which are not compatible with my device, and considering that my build number is quite uncommon, that could also be the case. I read from some threads that I have to unroot and lock the bootloader again in order to perform the update, but honestly I'm too lazy right now and I'd prefer to keep my device rooted if it's possible.
Does anybody know what could I do in this case?
OEM Build Number: VNS-L31ITAC555B160
OEM Product Model: HUAWEI VNS-L31
Vendor Country: h3g/it

xXRobyXx said:
Hi everyone. I've already rooted my Huawei P9 lite and now I'd like to update it to Android Nougat.
I tried to install different versions of firmware through OTA, but none of them worked out well. I'm starting to think that this is due to the firmware which are not compatible with my device, and considering that my build number is quite uncommon, that could also be the case. I read from some threads that I have to unroot and lock the bootloader again in order to perform the update, but honestly I'm too lazy right now and I'd prefer to keep my device rooted if it's possible.
Does anybody know what could I do in this case?
OEM Build Number: VNS-L31ITAC555B160
OEM Product Model: HUAWEI VNS-L31
Vendor Country: h3g/it
Click to expand...
Click to collapse
Hi,
you have to rebrand to the Global version (IMO) :
1. install TWRP 3.0.2.0 , Link
2. In TWRP flash C432 oeminfo.zip Link
3. Go back to TWRP's menu without reboot
4. Follow instructions (from step 3.).

-Alf- said:
Hi,
you have to rebrand to the Global version (IMO) :
1. install TWRP 3.0.2.0 , Link
2. In TWRP flash C432 oeminfo.zip Link
3. Go back to TWRP's menu without reboot
4. Follow instructions (from step 3.).
Click to expand...
Click to collapse
Thanks for your help. Is the VNS-L31C432B370 firmware compatible with single sim?

xXRobyXx said:
Is the VNS-L31C432B370 firmware compatible with single sim?
Click to expand...
Click to collapse
No, that's why I gave you the link to oeminfo dual Sim. If that's a problem for you, try looking for the B371, I didn't find one.

-Alf- said:
No, that's why I gave you the link to oeminfo dual Sim. If that's a problem for you, try looking for the B371, I didn't find one.
Click to expand...
Click to collapse
It's not a problem for me. What problems could I encounter if I use a dual sim firmware?

M
xXRobyXx said:
It's not a problem for me. What problems could I encounter if I use a dual sim firmware?
Click to expand...
Click to collapse
It has no effect on the phone's functionality.
Btw, there's B371 Link ,but it may be password protected . For Single SIM firmware use this Oeminfo.zip

-Alf- said:
M
It has no effect on the phone's functionality.
Btw, there's B371 Link ,but it may be password protected . For Single SIM firmware use this Oeminfo.zip
Click to expand...
Click to collapse
I tried to flash the C432 oeminfo, but after rebooting a black screen with red text appears and I can't unlock my phone because it's unable to decrypt the internal archive. Same thing with the singlesim oem info.
Also I can't mount the Internal Storage from TWRP because it results as 0 MB.
The only way I found to solve this issue is by restoring the original oeminfo from a previous backup.

xXRobyXx said:
tried to flash the C432 oeminfo, but after rebooting a black screen with red text appears
Click to expand...
Click to collapse
-Alf- said:
Go back to TWRP's menu without reboot
Click to expand...
Click to collapse

-Alf- said:
4. Follow instructions (from step 3.).
Click to expand...
Click to collapse
I've installed the с432b370 update correctly, but I can't flash the data package (update_data_full_VNS-L31_hw_eu.zip).

xXRobyXx said:
I've installed the с432b370 update correctly, but I can't flash the data package (update_data_full_VNS-L31_hw_eu.zip).
Click to expand...
Click to collapse
it happens sometimes...
Just to be sure - reboot to fastboot mode and run command:
fastboot oem get-build-number
and post result.

-Alf- said:
it happens sometimes...
Just to be sure - reboot to fastboot mode and run command:
fastboot oem get-build-number
and post result.
Click to expand...
Click to collapse
Now it is NRD90M test-keys, before it was VNS-L31ITAC555B160

xXRobyXx said:
Now it is NRD90M test-keys, before it was VNS-L31ITAC555B160
Click to expand...
Click to collapse
Okay, now read carefully:
1. Download TWRP for Nougat Link
2. Flash it over eRecovery (!)
using command:
fastboot flash recovery2 twrp3102.img (recovery2 , not recovery!)
3. Flash stock Recovery Nougat
Link use:
fastboot flash recovery xxxxx.img
4. Reboot, when yellow warning appears, press and hold Volume Up for 3-4 seconds, you should boot into TWRP
5. In TWRP select Wipe - Format data - yes - confirm. Go back - Reboot - System
6. And again, after yellow warning Volume Up and reboot TWRP. Now you can try install second .zip file hw_eu.
7. Reboot into Recovery and do factory reset.
Good luck!

-Alf- said:
Okay, now read carefully:
1. Download TWRP for Nougat Link
2. Flash it over eRecovery (!)
using command:
fastboot flash recovery2 twrp3102.img (recovery2 , not recovery!)
3. Flash stock Recovery Nougat
Link use:
fastboot flash recovery xxxxx.img
4. Reboot, when yellow warning appears, press and hold Volume Up for 3-4 seconds, you should boot into TWRP
5. In TWRP select Wipe - Format data - yes - confirm. Go back - Reboot - System
6. And again, after yellow warning Volume Up and reboot TWRP. Now you can try install second .zip file hw_eu.
7. Reboot into Recovery and do factory reset.
Good luck!
Click to expand...
Click to collapse
Code:
target reported max download size of 471859200 bytes
sending 'recovery2' (24462 KB)...
OKAY [ 0.713s]
writing 'recovery2'...
FAILED (remote: Command not allowed)
finished. total time: 0.713s
I'm sure that Phone and FRP are unlocked.

xXRobyXx said:
Code:
target reported max download size of 471859200 bytes
sending 'recovery2' (24462 KB)...
OKAY [ 0.713s]
writing 'recovery2'...
FAILED (remote: Command not allowed)
finished. total time: 0.713s
I'm sure that Phone and FRP are unlocked.
Click to expand...
Click to collapse
In other words, my instructions are wrong?
Okay, have a nice evening!

-Alf- said:
In other words, my instructions are wrong?
Okay, have a nice evening!
Click to expand...
Click to collapse
Hey, I'm not doubting your instructions! Hahaha.
I'm just asking, what should I do now? I can't flash TWRP to recovery2 if it doesn't allow me to commit any command.

xXRobyXx said:
doesn't allow me to commit any command.
Click to expand...
Click to collapse
And you are sure that Phone and FRP are unlocked? Hahaha.

-Alf- said:
And you are sure that Phone and FRP are unlocked? Hahaha.
Click to expand...
Click to collapse
Yeah

xXRobyXx said:
Yeah
Click to expand...
Click to collapse
Restart your phone, if the BL is really unlocked, after restart appears on screen yellow warning. Fastboot sometimes lies...

-Alf- said:
Restart your phone, if the BL is really unlocked, after restart appears on screen yellow warning. Fastboot sometimes lies...
Click to expand...
Click to collapse
Okay, finally I flashed TWRP. After restart, I pressed Volume Up key but it remains on the yellow warning screen with the text "Your device is booting now...".
Edit:
I solved this by installing Venus TWRP for P9 lite. Then, I followed all the instructions and updated to B416 through dlaod, and later to B418 through OTA. Additionally, I had to unlock the bootloader again and root.
Now I have a fully-functional P9 lite updated to Android Nougat

xXRobyXx said:
Hi everyone. I've already rooted my Huawei P9 lite and now I'd like to update it to Android Nougat.
I tried to install different versions of firmware through OTA, but none of them worked out well. I'm starting to think that this is due to the firmware which are not compatible with my device, and considering that my build number is quite uncommon, that could also be the case. I read from some threads that I have to unroot and lock the bootloader again in order to perform the update, but honestly I'm too lazy right now and I'd prefer to keep my device rooted if it's possible.
Does anybody know what could I do in this case?
OEM Build Number: VNS-L31ITAC555B160
OEM Product Model: HUAWEI VNS-L31
Vendor Country: h3g/it
Click to expand...
Click to collapse
Which process did you follow for the root?