VNS-L21 bricked after updating oeminfo and dload flash - Huawei P9 Lite Questions & Answers

So where do I start ... I have a VNS-L31 that was running on C185B130, I flashed meticulus's CM13 after making a full dump and a TWRP backup but since it couldn't handle dual sim properly I decided to roll back to stock, the first issue was that data couldn't be mounted (some encryption problem ... I can't quite remember) but somehow the phone booted successfully to stock, I tried to relock the bootloader so I can flash a clean stock using dload but I got 'FAILED (remote: root type is risk)' ... tried to flash with dload anyway but it didn't work because it was a c432 update.app file, then I flashed C432OemInfo-DUALSIM-P9LITE (using recovery terminal "dd" since I had no root ... maybe I shouldn't have ??) anyway the dload worked fine but after reboot => black screen ! I flashed C432B160 and B161 but still the same, no fastboot only stock recovery and nothing, wipe data/factory reset and wipe cache work fine but nothing is changing ! Your help would be much appreciated ! Thanks in advance
edit : I managed to re-unlock the bootloader, flashed twrp but still getting the same error while mounting data : 'failed to mount '/data' (mounted without encryption...)

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Stuck in bootloop L31

Hello everyone
Im currently stuck at the "Your device has been unlocked and can't be trusted." after trying to go back to mm from lineage OS 14.1
I cant seem to go to recovery even after flashing meticulus or revolutions recovery via fastboot, I've even extracted the images from the L31C432B160 and flashing them via fastboot, it installed fine but still stuck on bootloop, flashing oeminfo via dload and rom via update.app gets stuck at 5%, any help?
I can now boot into TWRP recovery but flashing oeminfo and trying to dload c432b160 doesnt work
Have you already tried with the "new" method? Here you go the tutorial:
https://forum.xda-developers.com/hu...torial-rollback-n-to-mm-c432-devices-t3563955
Potato997 said:
Have you already tried with the "new" method? Here you go the tutorial:
https://forum.xda-developers.com/hu...torial-rollback-n-to-mm-c432-devices-t3563955
Click to expand...
Click to collapse
Holding the 3 buttons to install the "rollback dload" either sends me to a bootloop or TWRP recovery.
Mhn, when you flash oeminfo from TWRP is it successful or did it gave you some error?
Potato997 said:
Mhn, when you flash oeminfo from TWRP is it successful or did it gave you some error?
Click to expand...
Click to collapse
after flashing oeminfo by BadWolf the last 4 lines are:
script succeeded: result was [1.000000]
updating partition details...
Failed to mount "/cust" (invalid argument)
...done
Try to use Meticulus' TWRP, it should work as you were on Lineage before the bootloop
Potato997 said:
Try to use Meticulus' TWRP, it should work as you were on Lineage before the bootloop
Click to expand...
Click to collapse
I am on Meticulus TWRP "TWRP-3.0.2-0-hi6250-v3", altho i've flashed b160 individual images (boot cust system) by fastboot).
The flash itself of the images gave no error messages so it should of booted but no
Potato997 said:
Try to use Meticulus' TWRP, it should work as you were on Lineage before the bootloop
Click to expand...
Click to collapse
After the "Failed" oeminfo flash my bootloader locks, does this mean the oeminfo flash worked?
Filipelol said:
After the "Failed" oeminfo flash my bootloader locks, does this mean the oeminfo flash worked?
Click to expand...
Click to collapse
Does it fail when you flash the oeminfo zip through TWRP?
Potato997 said:
Does it fail when you flash the oeminfo zip through TWRP?
Click to expand...
Click to collapse
It only said failed to mount cust, but I got it to work by flashing the nougat rom and additional file from the ultimate guide of nougat thread, thank you for your help
Filipelol said:
Hello everyone
Im currently stuck at the "Your device has been unlocked and can't be trusted." after trying to go back to mm from lineage OS 14.1
I cant seem to go to recovery even after flashing meticulus or revolutions recovery via fastboot, I've even extracted the images from the L31C432B160 and flashing them via fastboot, it installed fine but still stuck on bootloop, flashing oeminfo via dload and rom via update.app gets stuck at 5%, any help?
I can now boot into TWRP recovery but flashing oeminfo and trying to dload c432b160 doesnt work
Click to expand...
Click to collapse
have you tried booting to recovery without being connected to usb? it seems mine will only boot to twrp if i disconnect the phone from the usb cable

Help!!! Error mode?! :(

Hello GUYS.. So I was on the latest nougat update and I wanted to try CM13 on my P9 Lite VNS-L31 but someone told me that I need to downgrade to 6.0 before I install CM13 So I downloaded oeminfo and 6.0 rom from update finder.. and first I wiped system, data, cache and dalvik cache..okay so now I have no os installed.. Then I tried to install oeminfo with TWRP.. But it can't mount product/vendor/version (invalid argument) And I was like wtf does this mean? so I flashed stock rom image with fastboot again.. it said it's installed but twrp says no os is installed.. ugh I just tried everything to fix that..I tried to extract vendor.img and product.img and flashed them from fastboot.. But it said command not allowed and still twrp gives me the same errors when i try to wipe data or install system.. I asked people on another site and they told me I should install stock boot and recovery images from twrp and install system with 3 buttons method.. So I did but it said failed.. And when I wanted to flash twrp again the bootloader was locked wtf? so then I tried to unlock it again it asked me if i really wanna unlock it and I choose yes..the phone rebooted and I got this
Error Mode
Attention
Please update system again
(Android Logo)
Error!
Func NO: 11 (recovery image)
Error NO: 2 (load failed)
now I can't boot into recovery or fastboot it just stays in this screen
I tried to install system with the 3 button method but it just won't boot to anything.. I also tried to connect the cable and boot to fastboot..But it. just shows the huawei logo and then goes back to error mode.. please tell me what I should I do now?
hi, did you solve this issue?
You should've just downloaded the rollback package and stock mm rom. Flash the roll back package and then the mm rom in eRecovery. Btw if you are going for meticulus Cm13 rom then ot has been removed from his website and in the beanstalk rom of meticulus when you call someone or someone calls you then the UI restarts. Thats a major bug

Bricked P9 Lite?

Hello,
I have a problem that I can flash TWRP wich works fine. I can go to fastboot. But however I am not able to install any ROMs. Tried Lineage 14.1 and Stock rom.
I tried to flash stock recovery and tried to flash it back by "dload" method - error "Package firmware is not compatible" and when I tried to flash Lineage 14.1, everything seemed fine until boot logo where I was stuck for half an hour before I gave up. Also I am not sure but I think I havent managed to root my phone - tested with "adb shell su" wich gives error messages.'
Even tried hisuite recovery but it said that my phone is not supported.
Tried erecovery wich said "Getting package info failed"
I also can enter stock recovery
Im also getting
Failed to mount /vendor (invalid argument) in olddroid TWRP
and when trying to flash system I get FAILED (remote: sparse flash write failure)
So basically only thing I can do is be in TWRP without root, fastboot and stock recovery.
I have european VNS-21. Used to have stock nougat with EMUI 5.0
Any ideas how to get back any kind of rom?
Edited original post instead of posting new replies. Sorry. Dont know how to delete.

soft bricked my phone

hello!
i have a p9 lite vns-l21c432b380 dual sim
some days ago i contacted huawei to get the bootloader unlock code. after that i unlocked it via fastboot, flashed elite twrp recovery 3.2.1.0. everything working fine til now. i then tried to flash from twrp latest lineageOS release but it doesn't seem to be working as on reboot i get stuck on "you're device is unlocked and it can't be trusted" screen with the options to boot system and erecovery. it just stays there, no sign of lineage os.
i tried to restore at least the stock rom via dload and 3 button method and to flash extracted bits frome the update.app file via fastboot with no success: i always get a "update installation failed" error, with the only option to reboot the phone to nothing
what am i doing wrong?
update: i tried to flash oem info for l21c432 dual sim from twrp, then retried to install via dload and 3 button method. no luck, still "software install failed" and nothing else
OEMINFO: ftp://XDA-Dev:[email protected]/Oeminfo/L21/L21_DS_C432_by_EasySR.zip
FIRMWARE: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1164/g104/v66034/f1/full/update.zip
i'll try to flash both via fastboot, since the recovery won't now mount data
thank you
fastboot gives me "command not allowed", flashing via elite twrp 3.1.1 "invalid zip format". what am i missing?
You need to flash oeminfo with TWRP. (Unpack the arhive then copy the oeminfo.img on your phone)
And also , unpack update.zip .
Then make a new folder on sdcard called dload and put update.app there.
Then boot into dload mode and it should work.
i'm not sure of how it worked. now i have TWRP 3.0.2 installed and stock ROM VNS-L31C432B150. some how it changed from l21 to l31.
do you think there's a way i can flash latest lineage os or should i stick to b150? in case how can i do it?
thank you for patience and time

Huawei p9 lite Not working properly i Have TWRP and Fastboot access cant flash Vendor

i've been trying to get my huawei p9 lite work again since i tried Rooting and installing custom rom but it kinda failed when it had a constant BootLoop. i have TWRP on the phone can access it via Fastboot and can use ADB sideload, but my attempts have been a failure so far after 3 days total of pure agony.
Model VNS-L31C432B160
Unlocked Bootloader
Oem unlocked
PFR Unlocked
please hElP!
If you haven't tried this yet.
Download stock firmware from firmware finder app(if it still exists)
Install it in TWRP
Reboot to recovery (installing stock firmware also overwrote recovery)
Do factory reset

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