Updating Huawei P9 Lite h3g/it to Nougat - Huawei P9 Lite Questions & Answers

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?

Related

P9 Lite cannot flash stock firmware

I have a Huawei P9 lite. (VNS-L31 dual sim) . I tried to install medrom 3 and after flashing, phone didn't boot up. So I flashed b161 firmware again using 3 button method and phone booted up. Then I realized I couldn't add my google account. After searching on xda I found a method to fix that.(flashing oem info ). But after doing that, when the phone boots up after the huawei logo the error message which says "your device has been unlocked" has become red.( Usually it's yellow). And in about phone my model number has been changed to something like hi6250 or hi650.( Can't remember the exact thing). Then I tried to reflash my b161 firmware using 3 button menu and voila. It says incompatible version. I can't flash it. Then I replaced my build prop with my friend's phone's build prop. But unfortunately it has the B151 version. Though I have B161 version installed, my about phone says it has B151 version. And I can't flash stock firmware using twrp or dload method od any how. Please help
Nemeroz said:
I have a Huawei P9 lite. (VNS-L31 dual sim) . I tried to install medrom 3 and after flashing, phone didn't boot up. So I flashed b161 firmware again using 3 button method and phone booted up. Then I realized I couldn't add my google account. After searching on xda I found a method to fix that.(flashing oem info ). But after doing that, when the phone boots up after the huawei logo the error message which says "your device has been unlocked" has become red.( Usually it's yellow). And in about phone my model number has been changed to something like hi6250 or hi650.( Can't remember the exact thing). Then I tried to reflash my b161 firmware using 3 button menu and voila. It says incompatible version. I can't flash it. Then I replaced my build prop with my friend's phone's build prop. But unfortunately it has the B151 version. Though I have B161 version installed, my about phone says it has B151 version. And I can't flash stock firmware using twrp or dload method od any how. Please help
Click to expand...
Click to collapse
That's normal if the message is red, it means that the bootloader Will be relocked.
Now for the build prop, download b161 version, use huawei firmware extractor , extract boot.img system.img and cust.img
And by fastboot type :
fastboot flash system system.img
fastboot flash boot boot.img
fastboot flash cust cust.img
fastboot reboot
And voila, b161 is installed in your phone !
Sent from my HUAWEI VNS-L31 using XDA Labs
I can ont flash the boot.img. I get this error:
D:\Software_Tools\Multimedia\Handy-Taplet\Handy\Backup\161_entpackt>Fastboot flash boot boot.img
target reported max download size of 471859200 bytes
sending 'boot' (13998 KB)...
OKAY [ 0.300s]
writing 'boot'...
FAILED (remote: Command not allowed)
finished. total time: 0.322s
Schrotty35 said:
I can ont flash the boot.img. I get this error:
D:\Software_Tools\Multimedia\Handy-Taplet\Handy\Backup\161_entpackt>Fastboot flash boot boot.img
target reported max download size of 471859200 bytes
sending 'boot' (13998 KB)...
OKAY [ 0.300s]
writing 'boot'...
FAILED (remote: Command not allowed)
finished. total time: 0.322s
Click to expand...
Click to collapse
If fastboot say "FAILED (remote: Command not allowed)", its because your bootlaoder is locked, reunlock it !
In TWRP it says unable to mount Data :/
Ax3noX_ said:
If fastboot say "FAILED (remote: Command not allowed)", its because your bootlaoder is locked, reunlock it !
Click to expand...
Click to collapse
I noticed that in TWRP it says unable to mount data :/ What can i do now
I don't know what is "mount data", i cant help you with that ?
Ax3noX_ said:
I don't know what is "mount data", i cant help you with that
Click to expand...
Click to collapse
Its okay. Still looking for a help dude. Any help is highly appreciated :good:
Nemeroz said:
Its okay. Still looking for a help dude. Any help is highly appreciated :good:
Click to expand...
Click to collapse
Code:
fastboot oem unlock XXXXXX
fastboot flash recovery recovery_stock.img
Unable to read/mount data says your encryption key got changed by something, whatever. You need to Wipe Internal storage and flash twrp again ( I recomment matic`s ) Reboot to recovery again, if you got one, flash a flashable fw via twrp. I Dont know if the stock recovery Accepts a fully wiped intern storage, i guess not and it declines the update.app method.
In the best case for sure you recover an older backup to get the Same enc. Key back
WieserZ1C said:
Unable to read/mount data says your encryption key got changed by something, whatever. You need to Wipe Internal storage and flash twrp again ( I recomment matic`s ) Reboot to recovery again, if you got one, flash a flashable fw via twrp. I Dont know if the stock recovery Accepts a fully wiped intern storage, i guess not and it declines the update.app method.
In the best case for sure you recover an older backup to get the Same enc. Key back
Click to expand...
Click to collapse
Try to hold Vol+ and the power button and if you enter in Huawei recovery, select wipe data / Factory reset
Ax3noX_ said:
Try to hold Vol+ and the power button and if you enter in Huawei recovery, select wipe data / Factory reset
Click to expand...
Click to collapse
Tried that. But didnt work mate 😔
Nemeroz said:
Tried that. But didnt work mate 😔
Click to expand...
Click to collapse
Flash oeminfo (dowbload in the ultimate guide of nougat) and put the update.app of the marshmallow version in the dload folder then hold Vol+, vol- and power.
Its worked for me
Tell me if it work
(Sorry for my bad english, im french
I'd recommend using SP Flash tool. It's saved my ass multiple times.
Where you got the Scatter File for the p9 lite
Nantonix said:
I'd recommend using SP Flash tool. It's saved my ass multiple times.
Click to expand...
Click to collapse
Spflash tool is flash tool only for mtk devices... And p9 lite doesnt have a mtk soc !
---------- Post added at 08:47 PM ---------- Previous post was at 08:46 PM ----------
hanzox5 said:
Where you got the Scatter File for the p9 lite
Click to expand...
Click to collapse
It doesn't exist !
i wanted to convert the device to dual sim, so i tried to restore the backed-up partitions using meticulus' TWRP. But it says unable to mount /data every time i try to format it.
I know i made a big mistake, but that's how i learn..
this thread has worked for me
https://translate.google.co.uk/tran...m/showthread.php?t=1261335&edit-text=&act=url
Hello I went back the MN when startups is only then the logo after screen dark
please help me !!!
sorry for my english
pinhpongk said:
Hello I went back the MN when startups is only then the logo after screen dark
please help me !!!
sorry for my english
Click to expand...
Click to collapse
do a factory reset..if doesn work reflash stock marshmallow b160

L31- Brick after downgrade Nougat to MM

Hello !
Last week, i get the nougat beta firmware for my P9Lite (L31)
Today, when i want downgrade to MM, my phone was bricked.
I tried all methods i see on the forum but the phone don't start anymore.
Install via fastboot : FAILED
Install via eRecovery with update.zip : FAILED
TWRP NOUGAT B2 flash : FAILED
If you can help me please, thanks in advance !
unlock bootloader.
I have exactely the same problem, i can't do anything, i have the bootloader unlock, i have acces to TWRP nougat, bug the system don't boot ;( Please help !
I have flash system via fastboot, Failed.
I have no phone now
i also experienced that...this is how i resolved it:
1. Sideload the OEMinfo for VNS-L31 dual sim (or whatever version of P9 Lite you have)
2. Unpack the MM update.zip for the appropriate version of P9 Lite you have.
3. Create a folder on your sdcard called "dload'
4. Put the UPDATE.APP from the unpacked zip file into the dload folder.
5. While phone is switched off, put it into download mode by simultaneously pressing volume up + volume down + power button.
6. Should downgrade to MM.
7. All done!!!
Care must be taken as the OEMinfo is very P9 Lite version specific (ie, Dual sim and single sim).
LiaquateRahiman said:
i also experienced that...this is how i resolved it:
1. Sideload the OEMinfo for VNS-L31 dual sim (or whatever version of P9 Lite you have)
2. Unpack the MM update.zip for the appropriate version of P9 Lite you have.
3. Create a folder on your sdcard called "dload'
4. Put the UPDATE.APP from the unpacked zip file into the dload folder.
5. While phone is switched off, put it into download mode by simultaneously pressing volume up + volume down + power button.
6. Should downgrade to MM.
7. All done!!!
Care must be taken as the OEMinfo is very P9 Lite version specific (ie, Dual sim and single sim).
Click to expand...
Click to collapse
I'm trying ... Thanks for your answer
Ax3noX_ said:
I'm trying ... Thanks for your answer
Click to expand...
Click to collapse
Let me know if it works.
LiaquateRahiman said:
i also experienced that...this is how i resolved it:
1. Sideload the OEMinfo for VNS-L31 dual sim (or whatever version of P9 Lite you have)
2. Unpack the MM update.zip for the appropriate version of P9 Lite you have.
3. Create a folder on your sdcard called "dload'
4. Put the UPDATE.APP from the unpacked zip file into the dload folder.
5. While phone is switched off, put it into download mode by simultaneously pressing volume up + volume down + power button.
6. Should downgrade to MM.
7. All done!!!
Care must be taken as the OEMinfo is very P9 Lite version specific (ie, Dual sim and single sim).
Click to expand...
Click to collapse
THANKS THANKS THANKS THANKS !!!!!!
Its work !!!!! Thanks a lot :cyclops:
Ax3noX_ said:
THANKS THANKS THANKS THANKS !!!!!!
Its work !!!!! Thanks a lot :cyclops:
Click to expand...
Click to collapse
Glad i could help.
BadWolfYe said:
unlock bootloader.
Click to expand...
Click to collapse
Bootloader already unlocked bro, but thanks for the reply and for your work .
LiaquateRahiman said:
i also experienced that...this is how i resolved it:
1. Sideload the OEMinfo for VNS-L31 dual sim (or whatever version of P9 Lite you have)
2. Unpack the MM update.zip for the appropriate version of P9 Lite you have.
3. Create a folder on your sdcard called "dload'
4. Put the UPDATE.APP from the unpacked zip file into the dload folder.
5. While phone is switched off, put it into download mode by simultaneously pressing volume up + volume down + power button.
6. Should downgrade to MM.
7. All done!!!
Care must be taken as the OEMinfo is very P9 Lite version specific (ie, Dual sim and single sim).
Click to expand...
Click to collapse
What is "sideload"?
Where i can find oem info?
HeastoN said:
What is "sideload"?
Where i can find oem info?
Click to expand...
Click to collapse
OEMinfo for VNS-L31 can be found here http://www.htcmania.com/showthread.php?t=1261335
Sideload is a function, rather a command used in adb. Sideload is used to directly flash a zip onto your phone...Simply put the zip file into the adb folder. Thereafter enter TWRP, click on advanced and then click on sideload. Start the adb server and use the command : adb sideload <enter name of zip file here> and hit enter.
Example : adb sideload OEMinfo.zip
LiaquateRahiman said:
OEMinfo for VNS-L31 can be found here http://www.htcmania.com/showthread.php?t=1261335
Sideload is a function, rather a command used in adb. Sideload is used to directly flash a zip onto your phone...Simply put the zip file into the adb folder. Thereafter enter TWRP, click on advanced and then click on sideload. Start the adb server and use the command : adb sideload <enter name of zip file here> and hit enter.
Example : adb sideload OEMinfo.zip
Click to expand...
Click to collapse
Ok, thanks for reply.
ADB sideload work with TWRP Nougat B2?
HeastoN said:
Ok, thanks for reply.
ADB sideload work with TWRP Nougat B2?
Click to expand...
Click to collapse
Yes, i used it on my phone....Remember, you need to sideload the zip file, using the adb push command will not work.
I'm also L31 Brick after Nougat update...
LiaquateRahiman said:
Yes, i used it on my phone....Remember, you need to sideload the zip file, using the adb push command will not work.
Click to expand...
Click to collapse
I get the error on :
adb sideload OEMinfo.zip
error: protocol fault (no status)
If try to instal the update zip via twrp:
failed to mount '/vendor' (invalid argument)
Please help...
susorin said:
I get the error on :
adb sideload OEMinfo.zip
error: protocol fault (no status)
If try to instal the update zip via twrp:
failed to mount '/vendor' (invalid argument)
Please help...
Click to expand...
Click to collapse
Did you check if your device is able to connect via adb? use command : adb devices.
You need to install the UPDATE.APP via the three buttons, not the entire zip. It is crucial to flash the OEMinfo. Since you are able to enter TWRP recovery, try flashing the OEMinfo via TWRP.
No conection. Just fastboot mode and twrp. I think the adb sideload not working. The three buttons just show the huawei pticture and stuck on it. Maybe a twrp backup of vendor partition can help, but i don't have one....
---------- Post added at 09:46 AM ---------- Previous post was at 09:45 AM ----------
LiaquateRahiman said:
Did you check if your device is able to connect via adb? use command : adb devices.
You need to install the UPDATE.APP via the three buttons, not the entire zip. It is crucial to flash the OEMinfo. Since you are able to enter TWRP recovery, try flashing the OEMinfo via TWRP.
Click to expand...
Click to collapse
No conection. Just fastboot mode and twrp. I think the adb sideload not working. The three buttons just show the huawei pticture and stuck on it. Maybe a twrp backup of vendor partition can help, but i don't have one....
susorin said:
No conection. Just fastboot mode and twrp. I think the adb sideload not working. The three buttons just show the huawei pticture and stuck on it. Maybe a twrp backup of vendor partition can help, but i don't have one....
---------- Post added at 09:46 AM ---------- Previous post was at 09:45 AM ----------
No conection. Just fastboot mode and twrp. I think the adb sideload not working. The three buttons just show the huawei pticture and stuck on it. Maybe a twrp backup of vendor partition can help, but i don't have one....
Click to expand...
Click to collapse
try flashing oem via fast boot. command : fastboot flash <oem image file>
LiaquateRahiman said:
try flashing oem via fast boot. command : fastboot flash <oem image file>
Click to expand...
Click to collapse
Thanks, but i got an error... maybe i do someting wrong?
E:\Huawei P9 Lite>fastboot flash oem oeminfo.img
target reported max download size of 471859200 bytes
sending 'oem' (65536 KB)...
OKAY [ 1.670s]
writing 'oem'...
FAILED (remote: Command not allowed)
finished. total time: 1.677s
susorin said:
Thanks, but i got an error... maybe i do someting wrong?
E:\Huawei P9 Lite>fastboot flash oem oeminfo.img
target reported max download size of 471859200 bytes
sending 'oem' (65536 KB)...
OKAY [ 1.670s]
writing 'oem'...
FAILED (remote: Command not allowed)
finished. total time: 1.677s
Click to expand...
Click to collapse
Your bootloader is not unlocked
Or the OEM unlocking is not enabled
Johnny TDN said:
Your bootloader is not unlocked
Or the OEM unlocking is not enabled
Click to expand...
Click to collapse
E:\Huawei P9 Lite>fastboot oem unlock 1______________
...
FAILED (remote: already fastboot unlocked)
finished. total time: 0.003s
I don't know how verify if OEM unlocking is enabled or not....

TWRP on Nougat

I saw where someone said you could flash B20 bootloader and flash TWRP on Nougat, is this true? Is anyone working on a guide for Nougat TWRP and root. On another note I thought that I read that ZTE would be bringing Wifi calling for Nougat with carries such as T-Mobile? I was unable.to find it under options and assume that it is not possible, anyone have any idea about this.
Thanks
I have an unlocked BL and recently upgraded to Nougat, but when I try to reinstall TWRP via fastboot flash method, it fails. I have tried two different versions of TWRP 3.0.3-1 & 3.0.4-1. This is the message I get.
PS C:\adb> fastboot flash recovery twrp-3.0.4-1-a7.img
target reported max download size of 536870912 bytes
sending 'recovery' (14472 KB)...
OKAY [ 0.332s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 0.363s
Any ideas?
jim262 said:
I have an unlocked BL and recently upgraded to Nougat, but when I try to reinstall TWRP via fastboot flash method, it fails. I have tried two different versions of TWRP 3.0.3-1 & 3.0.4-1. This is the message I get.
PS C:\adb> fastboot flash recovery twrp-3.0.4-1-a7.img
target reported max download size of 536870912 bytes
sending 'recovery' (14472 KB)...
OKAY [ 0.332s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 0.363s
Any ideas?
Click to expand...
Click to collapse
I got TWRP 3.0.4 installed (as well as 3.0.3-1)... It installed sucessfully via Fastboot for me, I even flashed SU, but I couldn't get my phone to boot into the OS (tried with and without SU).......It just hung at the boot pre-boot screen (where it warns you the bootloader is unlocked). I'd restart it, and it always hangs at that screen..... Only way to fix it was to boot back into TWRP, revert back to B29 (using DrakenFX guide) and then update to Nougat again. I spent about 16 hours straight working on this on Tuesday, before I gave up and decided to keep it stock until a custom ROM comes out, soon (Z.A.D. v.4), hopefully?
I have an issue where I installed B15 but whenever I boot my phone, it hangs on the Linux Tux logo. Any fix?
xDaDeevellopar said:
I have an issue where I installed B15 but whenever I boot my phone, it hangs on the Linux Tux logo. Any fix?
Click to expand...
Click to collapse
You probably pushed the power button to "Start"? Try letting it sit there about 10-15 seconds, if it won't boot...This is the exact same problem I had. I had to go back to B29, then do the update again. There is now a B15 "return to stock" walk-through, that may be the quicker route.....But I know returning to B29, turning on OEM Unlock in Dev options and then taking the update via your SD card was what I did (3 times in one day).
Flash signed TWRP with tennear's tool (axon7tool):
https://forum.xda-developers.com/axon-7/development/axon7tool-flash-backup-boot-recovery-t3514254
https://we.tl/dv78KwQZCY
and then follow this guide:
https://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
3 files and 10 minutes of your time for TWRP + unlocked bootloader
bornlivedie said:
Flash signed TWRP with tennear's tool (axon7tool):
https://forum.xda-developers.com/axo...overy-t3514254
https://we.tl/dv78KwQZCY
and then follow this guide:
https://forum.xda-developers.com/axo...-stay-t3461165
3 files and 10 minutes of your time for TWRP + unlocked bootloader
Click to expand...
Click to collapse
Those 2 XDA links don't work, take me to a generic XDA 404 error page (on both)...the WeShare page worked.
tele_jas said:
Those 2 XDA links don't work, take me to a generic XDA 404 error page (on both)...the WeShare page worked.
Click to expand...
Click to collapse
That's because I copypasted lol
https://forum.xda-developers.com/axon-7/development/axon7tool-flash-backup-boot-recovery-t3514254
https://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
bornlivedie said:
That's because I copypasted lol
https://forum.xda-developers.com/axon-7/development/axon7tool-flash-backup-boot-recovery-t3514254
https://forum.xda-developers.com/axon-7/how-to/guide-how-to-unlock-bootloader-stay-t3461165
Click to expand...
Click to collapse
If my bootloader is already unlocked, can I skip that part (the 2nd link)?? Or is it necessary?
tele_jas said:
If my bootloader is already unlocked, can I skip that part (the 2nd link)?? Or is it necessary?
Click to expand...
Click to collapse
Those steps are meant to unlock the bootloader.
You don't need any of it. You already have TWRP (skip step 1) and bootloader unlocked (skip step 2) so yeah...
What do you want exactly?
bornlivedie said:
Those steps are meant to unlock the bootloader.
You don't need any of it. You already have TWRP (skip step 1) and bootloader unlocked (skip step 2) so yeah...
What do you want exactly?
Click to expand...
Click to collapse
My bootloader is unlocked (back when ZTE actually provided the unlocking)....adb fastboot works on my phone as well and I've flashed TWRP (3.0.4 and 3.0.3-1) and it's booted into TWRP, but I cannot boot into the actual OS...My phone goes all black and just hangs there, I think this may be booting directly into EDL mode and not the OS? I can plug my phone into the computer and my computer makes noises as if a USB device has been attached, but my screen is completely black. If I push the start button while the phone is booting (to bypass the bootloader is unlocked warning screen), I boot to a small penguin screen.
The only thing I can do from there is revert back to stock B29, then update back to stock B15.
I want to be able to install TWRP, root my phone, on Nougat, and be able to use my phone too?
tele_jas said:
My bootloader is unlocked (back when ZTE actually provided the unlocking)....adb fastboot works on my phone as well and I've flashed TWRP (3.0.4 and 3.0.3-1) and it's booted into TWRP, but I cannot boot into the actual OS...My phone goes all black and just hangs there, I think this may be booting directly into EDL mode and not the OS? I can plug my phone into the computer and my computer makes noises as if a USB device has been attached, but my screen is completely black. If I push the start button while the phone is booting (to bypass the bootloader is unlocked warning screen), I boot to a small penguin screen.
The only thing I can do from there is revert back to stock B29, then update back to stock B15.
I want to be able to install TWRP, root my phone, on Nougat, and be able to use my phone too?
Click to expand...
Click to collapse
Then follow this:
https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514
and flash this:
https://forum.xda-developers.com/showpost.php?p=68873482&postcount=2
I think I know what happened to you... did you by any chance allow system modifications in TWRP? That makes the OS bootloop if you have Nougat.
bornlivedie said:
Then follow this:
https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514
and flash this:
https://forum.xda-developers.com/showpost.php?p=68873482&postcount=2
I think I know what happened to you... did you by any chance allow system modifications in TWRP? That makes the OS bootloop if you have Nougat.
Click to expand...
Click to collapse
The MiFlash program found my phone, but failed every time I ran it.. So, I just bit the bullet and downloaded the latest TWRP 3.0.4-1 and flashed that.....And it worked! I then flashed SU, my fonts and changed my Emoji's....I'm about there with customization, and it's all booting up just fine!
But, yes the first few times I did allow system modifications......But I also did this last time too and it's working fine?

TWRP B370 uninstalling dir B380 OTA

Hi,
Got Bad Version of b370 by ota. So I just flashed TWRP nougat. after that I flashed the update_data_full_VNS-L21_hw_eu.zip from here:
update_data_full_VNS-L31_hw_eu.zip
as explained in point 3 of second step:
[GUIDE][NOUGAT]INSTALL V4A/MAGISK/ROOT/TWRP/D2W/... for p9 lite
Now b370 is installed but with twrp. Now Update b380 over ota is available. I want to get Back Stock Recovery. Has anyone a Link for me to flash b370 only Recovery? Or is full b370 flash necessary? I prefer only Recovery doing b380 Update via ota later.
Thanks
Klaus
System: VNS-L21C432B370 dual SIM Austria
klsystem1 said:
Hi,
Got Bad Version of b370 by ota. So I just flashed TWRP nougat. after that I flashed the update_data_full_VNS-L21_hw_eu.zip from here:
update_data_full_VNS-L31_hw_eu.zip
as explained in point 3 of second step:
[GUIDE][NOUGAT]INSTALL V4A/MAGISK/ROOT/TWRP/D2W/... for p9 lite
Now b370 is installed but with twrp. Now Update b380 over ota is available. I want to get Back Stock Recovery. Has anyone a Link for me to flash b370 only Recovery? Or is full b370 flash necessary? I prefer only Recovery doing b380 Update via ota later.
Thanks
Klaus
System: VNS-L21C432B370 dual SIM Austria
Click to expand...
Click to collapse
Use Huawei Update Extractor to extract recovery.img from update.app, then flash it and you can safely update to B380.
Where can I get update.app ? B370 was OTA. And a small update.app for repair...
Have you got a Link for b370 ? Only flashing Recovery or boot too?
Thanks
Can I take VNS-L21C4321B370 from here:
FULL B370 Version
Do I have only to flash recovery.img or boot.img too ? I don't want to change oeminfo because I have dual sim and I want to keep that.
please reply.
thanks,
Klaus
zgomot said:
Use Huawei Update Extractor to extract recovery.img from update.app, then flash it and you can safely update to B380.
Click to expand...
Click to collapse
FASTBOOT shows: PHONE Unlocked, FRP LOCK.. Bootloader can't unlocked, because it tells bootloader already unlocked.
Trying to flash shows error:
Code:
fastboot flash recovery RECOVERY.img
target reported max download size of 471859200 bytes
sending 'recovery' (35536 KB)...
OKAY [ 1.021s ]
writing 'recovery'...
FAILED (remote: Command not allowed)
finished. total time: 1.033s
klsystem1 said:
FASTBOOT shows: PHONE Unlocked, FRP LOCK.. Bootloader can't unlocked, because it tells bootloader already unlocked.
Trying to flash shows error:
Code:
fastboot flash recovery RECOVERY.img
target reported max download size of 471859200 bytes
sending 'recovery' (35536 KB)...
OKAY [ 1.021s ]
writing 'recovery'...
FAILED (remote: Command not allowed)
finished. total time: 1.033s
Click to expand...
Click to collapse
Heyho,
1st u should read this, because this is the P9 Lite Dev Section... U should ask the next time those questions in the P9 Lite Question & Answer Section...
--
U should try to unlock the "FRP-Lock" because if it's not unlocked u may not be able flash anything via fastboot nor unlock the bootloader it self. After u have unlocked the "FRP-Lock" u should try to flash the recovery.img u have, if it's still not working, try to unlock the bootloader again and repeat the flash.
Regards,
Sebastian
How can I unlock FRP?
klsystem1 said:
How can I unlock FRP?
Click to expand...
Click to collapse
Well, under developer settings? OEM unlock?^^
-
If u don't know how to unlock the bootloader u should avoid those modifications... - because, here on XDA are billion guides which show u how are things done, but proofed through ur posts u haven't read only one of it.
Also, if u have a L21 why u flash a L31 cust IMG? Because some guy wrote a simple guide right?
Sarcasm off, based on this thread u should inform u about android before following such noob guide's...
Regards,
Sebastian
Sent from my HUAWEI VNS-L31 using XDA Labs
OEM lock can't be activated, it is grey (disabled).
klsystem1 said:
OEM lock can't be activated, it is grey (disabled).
Click to expand...
Click to collapse
Ok, then this might be ur last chance^^
1) boot into twrp
2) open a cmd prompt to the device
3) navigate to ur adb installation
4) type the following commands:
Code:
adb push "path/to/the/stock/recovey" "/tmp/recovery_stock.img"
adb shell "dd if=/tmp/recovery_stock.img of=/dev/block/platform/hi_mci.0/by-name/recovery"
If u get an error that the recovery can't be written, well, then i don't know how to help u. Because if u can't flash the recovery this way, the loader will be really locked. The only solution then might be, call Huawei customer support and send the device to an service-center.
Regards,
Sebastian
k1ll3r8e said:
Well, under developer settings? OEM unlock?^^
-
If u don't know how to unlock the bootloader u should avoid those modifications... - because, here on XDA are billion guides which show u how are things done, but proofed through ur posts u haven't read only one of it.
Also, if u have a L21 why u flash a L31 cust IMG? Because some guy wrote a simple guide right?
Sarcasm off, based on this thread u should inform u about android before following such noob guide's...
Regards,
Sebastian
Sent from my HUAWEI VNS-L31 using XDA Labs
Click to expand...
Click to collapse
I know what it means to unlock bootloader as I mentioned OEM Lock ist Grey.... Also my above Link to b370 is an L21.
Sebastian, you might have more experience than other Users here but I think it does Not help anyone if you tell people who are asking questions that they should inform before asking...
Heyho,
i don't know if u have skipped this post
-
klsystem1 said:
I know what it means to unlock bootloader as I mentioned OEM Lock ist Grey.... Also my above Link to b370 is an L21.
Sebastian, you might have more experience than other Users here but I think it does Not help anyone if you tell people who are asking questions that they should inform before asking...
Click to expand...
Click to collapse
To ur link, as u wrote here...
klsystem1 said:
... after that I flashed the update_data_full_VNS-L21_hw_eu.zip from here:
update_data_full_VNS-L31_hw_eu.zip
as explained in point 3 of second step:
[GUIDE][NOUGAT]INSTALL V4A/MAGISK/ROOT/TWRP/D2W/... for p9 lite
...
Click to expand...
Click to collapse
it sounds clearly that u flashed a L31 cust (data.zip) on ur L21 soo...
And about the "inform before do those things", i mean in the main case, if u really flashed a L31 cust on a L21 u should check those things before u flash those files. Because, if u really did that, u have now a locked device which look like this:
boot = L21
system = L21
recovery = TWRP
oeminfo = L21
cust = L31
now how the system merge the files (if i'm right):
boot - build.prop
system - build.prop (override the boot in some cases)
custom.bin (links to another build.prop) - (override the last values)
cust - build.prop (override the last values)
as u can see, u have now an mixed system of L21 and L31 settings... This maybe cause the problem with the update.app because the update.app have also some checks running before installing, and if it can't determine which system u now really have, it will do the wrong "patchings" etc...
-
So this should not be an personal attack
-
Hope u can solve the prop based on my last post, i linked at the beginning of this.
Regards,
Sebastian
OK sucessfully flashed Recovery from b370 extracted with Your Syntax in twrp Mode.
Now pressing vol Up + Power does Not Boot in twrp. It boot into eRecovery.shows Failed pakage Reading. Updating ota Boots also in Huawei Recovery with Same failure.
B370 still working.
klsystem1 said:
OK sucessfully flashed Recovery from b370 extracted with Your Syntax in twrp Mode.
Now pressing vol Up + Power does Not Boot in twrp. It boot into eRecovery.shows Failed pakage Reading. Updating ota Boots also in Huawei Recovery with Same failure.
B370 still working.
Click to expand...
Click to collapse
Heyho,
in that case u can try the rollback package from huawei. But, i never tested it myself. So i can't tell u where u get it nor if it will solve ur problem.
Regards,
Sebastian
k1ll3r8e said:
Heyho,
in that case u can try the rollback package from huawei. But, i never tested it myself. So i can't tell u where u get it nor if it will solve ur problem.
Regards,
Sebastian
Click to expand...
Click to collapse
Rollback to Stock b370? Please send me the Link.
Thanks
klsystem1 said:
Rollback to Stock b370? Please send me the Link.
Thanks
Click to expand...
Click to collapse
easiest way is to flash your oeminfo through twrp, install update.app of stock rom (i know stock mm is around here somewhere, don't know about nougat, just search around), and install the ota's, if they're available
mjz2cool said:
easiest way is to flash your oeminfo through twrp, install update.app of stock rom (i know stock mm is around here somewhere, don't know about nougat, just search around), and install the ota's, if they're available
Click to expand...
Click to collapse
ok, installing nougat TWRP with update.app on sd card from my software stand now possible ?
Has anyone a B370 full stock rom for me ? Can I take the B370 link I posted a few posts before?
is it normal when installing OTA update that phone boots in huawei eRecovery ? this exactly happens when I do this. I already flashed stock recovery nougat. is there a chance to install b380 update with twrp ? should I flash back to twrp ?
thanks,
k1ll3r8e said:
Heyho,
in that case u can try the rollback package from huawei. But, i never tested it myself. So i can't tell u where u get it nor if it will solve ur problem.
Regards,
Sebastian
Click to expand...
Click to collapse
can you please send me the link for the rollback package ?
klsystem1 said:
can you please send me the link for the rollback package ?
Click to expand...
Click to collapse
Heyho,
as u quoted ur self and mentioned already by me, I don't have any links... I have read about that somewhere on the i-net... Just use Google... - Also, if u flashed really the recovery2.img, maybe u are not able to update from now on... because u flashed the erecovery instead of the recovery.
I never tried to flash the recovery2.img as normal recovery... So I can't help u anymore.
Regards,
Sebastian
Sent from my HUAWEI VNS-L31 using XDA Labs

Stock ROM to UPDATE IN 2021

Hello, good day. I just wanted to ask, (Im using custom rom now and my old backup is nowhere to be found) If I am going to flash my device to official stock rom, like if I flashed the older version (lets say the MM) can I still update my device today (up to nougat) through OTA update?
i think huawei cloud is the site where we download OTA updates from but I think is already dead.
(sorry if my poiint is confusing, I just really don't know how to explain it clearly)
emmanueldlauron said:
Hello, good day. I just wanted to ask, (Im using custom rom now and my old backup is nowhere to be found) If I am going to flash my device to official stock rom, like if I flashed the older version (lets say the MM) can I still update my device today (up to nougat) through OTA update?
i think huawei cloud is the site where we download OTA updates from but I think is already dead.
(sorry if my poiint is confusing, I just really don't know how to explain it clearly)
Click to expand...
Click to collapse
Hi,
in fastboot mode run commands:
fastboot oem get-build-number
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem oeminforead-CUSTOM_VERSION
and post results.
thanks for resonding
(bootloader) :Elite ROM v7.7
(bootloader) HUAWEI VNS-L31
vendorcountry: hw/spcseas
FAILED (remote: 'invalid command')
emmanueldlauron said:
thanks for resonding
(bootloader) :Elite ROM v7.7
(bootloader) HUAWEI VNS-L31
vendorcountry: hw/spcseas
FAILED (remote: 'invalid command')
Click to expand...
Click to collapse
Okay, last question - single SIM or dual SIM?
Dual Sim
emmanueldlauron said:
flash my device to official stock rom
Click to expand...
Click to collapse
So if I not mistaken, your build number is VNS-L31C185 EMUI 5 (correct me if I'm wrong).
Firmware finder and Huawei old server are down, so download service ROM.
IMO now you have two possibilities:
A) flash Service ROM using dload method, guide can be found in ReleaseDoc folder. The process will erase all your data and lock the BL again!
B)
- from downloaded ROM extract BOOT.img
RECOVERY.img
SYSTEM.img
CUST.img via 'Huawei update extractor' , follow Guide
(Note: CUST.img on Nougat can be found in the second archive)
- In fastboot mode flash extracted partitions using commands
fastboot flash boot BOOT.img
fastboot flash recovery RECOVERY.img
fastboot flash system SYSTEM.img
fastboot flash cust CUST.img
- fastboot reboot
- Factory reset in stock recovery
-Alf- said:
So if I not mistaken, your build number is VNS-L31C185 EMUI 5 (correct me if I'm wrong).
Firmware finder and Huawei old server are down, so download Service ROM
IMO now you have two possibilities:
A) flash Service ROM using dload method, guide can be found in ReleaseDoc folder. The process will erase all your data and lock the BL again!
B)
- from downloaded ROM extract BOOT.img
RECOVERY.img
SYSTEM.img
CUST.img via 'Huawei update extractor' , follow Guide
(Note: CUST.img on Nougat can be found in the second archive)
- In fastboot mode flash extracted partitions using commands
fastboot flash boot BOOT.img
fastboot flash recovery RECOVERY.img
fastboot flash system SYSTEM.img
fastboot flash cust CUST.img
- fastboot reboot
- Factory reset in stock recovery
Click to expand...
Click to collapse
I don't have sd card on me right now. is there any way I can flash service rom without sd card?
Edit: and also this device is C636xxx.
neverming the first paragraph I said. I'm confused with CUST.img thing, I donwloaded the C635 update but there's no second archive on what I had downloaded
emmanueldlauron said:
flash service rom without sd card?
Click to expand...
Click to collapse
Nope.
emmanueldlauron said:
this device is C636xxx.
Click to expand...
Click to collapse
Okay, then download C636
-Alf- said:
Nope.
Okay, then download C636
Click to expand...
Click to collapse
Thanks for the tips and ideas, I somehow understand something new today.
emmanueldlauron said:
there's no second archive on what I had downloaded
Click to expand...
Click to collapse
VNS-L31_hw_xxxxx
-Alf- said:
VNS-L31_hw_meafnaf
Click to expand...
Click to collapse
Oh yeah. I just figured it out but had to rename that to update.app so update extractor can accept the file. Thanks by the way.
for now SYSTEM and CUST takes time to finish extracting.
-Alf- said:
So if I not mistaken, your build number is VNS-L31C185 EMUI 5 (correct me if I'm wrong).
Firmware finder and Huawei old server are down, so download service ROM.
IMO now you have two possibilities:
A) flash Service ROM using dload method, guide can be found in ReleaseDoc folder. The process will erase all your data and lock the BL again!
B)
- from downloaded ROM extract BOOT.img
RECOVERY.img
SYSTEM.img
CUST.img via 'Huawei update extractor' , follow Guide
(Note: CUST.img on Nougat can be found in the second archive)
- In fastboot mode flash extracted partitions using commands
fastboot flash boot BOOT.img
fastboot flash recovery RECOVERY.img
fastboot flash system SYSTEM.img
fastboot flash cust CUST.img
- fastboot reboot
- Factory reset in stock recovery
Click to expand...
Click to collapse
UPDATE: I did the B. they're all finished without any errors, but I ended with bootloop, like I can't go to recovery and when I tried to it vibrates twice and show nothing but just the huawei logo with "powered by android" texts.
emmanueldlauron said:
UPDATE: I did the B. they're all finished without any errors, but I ended with bootloop, like I can't go to recovery and when I tried to it vibrates twice and show nothing but just the huawei logo with "powered by android" texts.
Click to expand...
Click to collapse
Try command
fastboot erase userdata
and reboot.
Check your current build number etc.
https://forum.xda-developers.com/t/stock-rom-to-update-in-2021.4320501/post-85489493
-Alf- said:
Try command
fastboot erase userdata
and reboot.
Check your current build number etc.
https://forum.xda-developers.com/t/stock-rom-to-update-in-2021.4320501/post-85489493
Click to expand...
Click to collapse
emmanueldlauron said:
(bootloader) :Elite ROM v7.7
(bootloader) HUAWEI VNS-L31
vendorcountry: hw/spcseas
FAILED (remote: 'invalid command')
Click to expand...
Click to collapse
still the same with these
emmanueldlauron said:
still the same with these
Click to expand...
Click to collapse
Bro try this way out...
Download and install TWRP (if possible) and let me know
Upd.: nevermind, I forgot you don't have an sd card,.
Upd.2.: without SD you can try to flash Service ROM (or B361 firmware) using TWRP and sideload method. Unfortunately, sideload is Greek to me , so google it.
-Alf- said:
Bro try this way out...
Download and install TWRP (if possible) and let me know
Upd.: nevermind, I forgot you don't have an sd card,.
Upd.2.: without SD you can try to flash Service ROM (or B361 firmware) using TWRP and sideload method. Unfortunately, sideload is Greek to me , so google it.
B361 firmware is a fullOTA-MF-PV version, download and instructions here
Click to expand...
Click to collapse
I can still go fastboot mode and install everything without any errors but I don't why, it confuses me that let say I just flashed recovery (custom or stock) but when I'm going to access it (volume up + power button) phone just vibrates twice but nothing will happen.
emmanueldlauron said:
I can still go fastboot mode and install everything without any errors but I don't why, it confuses me that let say I just flashed recovery (custom or stock) but when I'm going to access it (volume up + power button) phone just vibrates twice but nothing will happen.
Click to expand...
Click to collapse
Flash TWRP over eRecovery, run command
fastboot flash recovery2 twrp.img
fastboot reboot
when a yellow warning appears on the screen, pres and hold Vol Up for 3 sec.
Edit: maybe your data partition is formatted with f2fs (after installing Elite ROM) , it should be ext4. I'm out of ideas bro, sorry.
-Alf- said:
Flash TWRP over eRecovery, run command
fastboot flash recovery2 twrp.img
fastboot reboot
when a yellow warning appears on the screen, pres and hold Vol Up for 3 sec.
Edit: maybe your data partition is formatted with f2fs (after installing Elite ROM) , it should be ext4. I'm out of ideas bro, sorry.
Click to expand...
Click to collapse
No problem. I think I hard bricked my phone, I just got boot logo and fastboot but I can't find any fix or solution or anything to do with this.
Flashing recovery or recovery2 finished w/o any errors but I can't boot to recovery.
Thanks for your help by the way. I appreciate it! Kudos and have a nice day. Keep safe.
emmanueldlauron said:
I think I hard bricked my phone,
Click to expand...
Click to collapse
IMO you only need an SD card and flash the Service ROM.

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