Huawei P9 Lite black screen - bricked? - Huawei P9 Lite Questions & Answers

Hello everyone,
I own a dual-SIM P9 lite (VNS-L31), which was rooted and flashed with TWRP with EMUI 4 (MM).
So yesterday I wanted to do the pending OTA Update, so I unrooted, reflashed it with stock MM ROM (I did not know that it was possible to update manually) and did the pending OTA-Update to B160, then unlocked the bootloader + rooted again and installed TWRP Recovery.
However, it was still on EMUI 4, so I downloaded the Dual-Sim-C432 OEMinfo and flashed it in TWRP, then I did the OTA Update to EMUI 5.
TWRP Recovery would not load up anymore, so I flashed revolution recovery.
Then I looked for a way to root EMUI 5 Nougat and stumbled upon the "Elite Kernel" in xda-Forums, downloaded it right away and flashed with Revolution.
It all seemed to work fine, Superuser worked as expected.
However, today my screen suddenly turned black. I hard-rebooted and it did not show anything (no bootlogo or anything) , but apparently it booted up the OS as I heared the sounds of incoming messages.
I once got into recovery, but the screen is still black (I only knew because revolution recovery lets the user mount the device in MTP and makes the cust drive visible)
When I plug it into my PC it plays the charging sound and opens up the virtual HiSuite CDROM and an empty MTP device (as it is needed to accept a dialog to grant MTP access)
Everything OS-related works (it played the alarm clock this morning and I was able to dismiss it by swiping, I can hear messages, once it played music as i tapped somewhere on the lockscreen)
sadly, USB-Debugging is not enabled (adb devices shows my P9 lite as unauthorized)
Sometimes the backlight flickers randomly, but the screen stays black
Sometimes the screen turned on again after pressing random buttons (either volume+ and - at the same time while on lockscreen or pressing the power button repeatedly), either behaving normal or showing a weird glitched picture.
I already tried getting into fastboot mode, my PC recognizes the device with serial number when typing "fastboot devices", on both my linux and windows system. I tried to flash the following:
boot.emmc.win from an TWRP Backup
system.img from the Huawei Extractor, extracted from the newest Nougat EMUI update.app
putting an update.app in the dload folder, booting the device up with the 3-button-method. It did not show the EMUI eRecovery screen, I left it for 10 minutes but nothing changed
boot.img, recovery.img, recovery2.img and system.img from the Huawei Extractor, nothing changed
Any Ideas on how to recover?
Thanks in advance and sorry for my bad english

Related

Can't flash any recovery

I've unlocked the bootloader and flashed the Revolution Recovery B9, but I can't mount 'data' , so I modified the partition into F2FS and then formatted it. After that I couldn't enter to system, so I used three buttons to recovery the stock firmware. Now I can't reflash the TWRP and I can't add any goggle account.
What should I do?
Thanks before
What version p9 lite vns- ??
What do you want to install as firmware?
Info. If you wanted to be helped, helped too.
Hi,
have similar issue.
Bought P9Lite, originally on Vodafone UK/IE. VNS-L31C02B120.
Flashed B432 ROM which was OK, although changed to C900. Then I flashed something which was posted as UPDATE.APP. I thought it's an update, but then saw the size, was about 32MB. Since then it boots into Huawei eRecovery, which is uselless as it connect via Wi-Fi but does nothing. I can boot into fastboot/Recovery mode but thats it.
Tried flash Vodafone ROM but it stuck at 5%, no matter what I try to flash. The last when it booted still showed the Vodafone start up logo.
Any help appreciated...
Bootloader locked, no root.
1) Disconnect and power off.
2) Put a stock rom (UPDATE.APP) on SD card in folder dload and put it in the phone. If you have not, create folder "dload"
3) Hold down all 3 hardware buttons for cca. 10 second (Volume+ AND Volume- AND Power) until the phone enters EMUI system update mode and stars update from the SD card.
4) Phone will reboot and you have OS

Help! my phone is dead

Hey i have a can-l01 was stock marshmallow (CAN-L01C150B102) and stock recovery searching firmweare finder i found a small package of update, downloaded it put it in dloader folder and updated, update was finiseh 100% phone restarted like usually, but it stayed in bootloop. After a while it boots in erecovery, select Download latest version and recovery and then download recovery but i get the error "Getting package info failed".
Recovery isn`t working, when i boot into recovery the phone get stuck and after a few seconds display is getting black and the notification led is blue. I have tried update to nougat but update stops at 52%, i am not able to flash twrp or another recovery......is there any way to boot the phone with the volume keys and power button into fastboot??
OMG solved! I managed to get into fastboot mode (pressing volume- while i plugged the usb cable) and flashed a new recovery.
Thread can be closed. Thank you!
Hello mates, hope u r doing well, i have the same problem as u with my Huawei Nova Plus AL10 (chineese version), i tried to update the version from 6 toNougat 7 with Huawei firmware finder, when arrived at 100%, it reboot and stuck in Huawei eRecovery (Getting package info failed).
i tried to downlad the official firmware AL10 (chineese version) and flash the phone with sd card ( Dload==>Update), it loads and stops in 5% or 49%, the eRecovery and factory reset has never managed to download anything for me, always failed.
NB: Fastboot is working
Any help please neeeeeeeed solution

Huawei P9 Lite Brick I Need Help

Hi guys,
Yesterday, I unlocked my Huawei P9 Lite with the given code from EMUI, then I installed TWRP (twrp-3.1.1-0-venus.img) and installed SuperSU. All went okay, i managed to delete useless system app, but I realized i did not pass Safetynet Check anymore (and since i'm a PoGo fan..), so I uninstalled SuperSU and tried with Magisk, same issue. I uninstalled both, and couldn't get back the clean safetynet check.
There, I tried to install a official ROM for VNS-L31 xxxx361, but I did it wrong and the whole thing crashed. Now i'm left with no OS, phone is bootlooping for ever. The only things I can access if TWRP and Fastboot mode. I tried to flash img from a huawei release, but i get this error that scare everyone i asked about : remote : sparse flash write failure.
I've no idea how to not trash my phone and go grab another one if I ever want to make a phone call again!
Please help!!
Kindly,
Antonin
I had similar problem but I had no recovery just eRecovery and fastboot (which didnt let me flash anything).
Download FULL rom from:
hwmt.ru/oth/HWFF/info/view.php?find_model=VNS
(sorry cant post links)
Make sure u choose right model and location.
Extract the update.app and put it on sdcard in folder named dload, insert that sdcard into the phone.
Boot to erecovery and shut down the phone from there, then turn on the phone with both volume buttons pressed and wait till the rom will be installed.
If you didnt success to boot with vol + and vol -, try to press power wait for vibration and quickly press both volume buttons and hold.

P8 Lite turns itself off while booting to TWRP/CWM recovery

LATE EDIT: solved, read bottom of this topic for solution
Hi, so I have a P8 Lite and after properly unlocking the bootloader, I flashed TWRP (versions/ports found on XDA for P8 lite).
After using fastboot fastboot flash recovery twrp.img properly, it outputs OK, indicating it successfully flashed.
Now, assuming all went fine, I tried booting into recovery with powerbutton and volume up, after a few seconds only it turned off, the whole device just shuts itself down.
I then noticed it'd go into Huawei eRecovery when you keep holding it, so I just briefly pressed both keys until it started up, immediately released, and it still failed to boot into recovery.
To make sure I made no mistakes with triggering the recovery boot, I used adb to perform ''adb reboot recovery'' and so it attempted to boot into it, resulting yet again in the same black screen shortly after the Huawei (powered by android) logo, where that black screen is actually the device shutting itself down.
So the conclusion I draw is that the recovery is broken after installing it, the question is how. I'm not a novice to this kind of stuff, as you might have noticed, but still I cannot think of what went wrong, as my bootloader is successfully unlocked through the EMUI method, and I made proper use of fastboot to flash recovery, after which it tells me it succeeded, using the proper recovery for this device.
To double check I also installed the CWM recovery released for the P8 Lite (https://forum.xda-developers.com/p8...overy-clockwork-mod-recovery-cm-12-1-t3342209), as TWRP's for it (multiple versions/releases..) failed thus far, and also with CWM the same happens.
I really want to proceed flashing recovery to then root the phone and install a custom ROM, so any help or ideas what the cause might be, will be appreciated, or anyone that encountered the same problem!
SOLVED (was too lazy to post on time, i fixed it shortly after posting this).
The problem was that I flashed a bad recovery, basically the ALE-L21 has different TWRP versions advertised in the P8 lite section, i happened to choose a not too good one, it may have even been one that didnt belong to my model (like P8 lite generation year), not sure as the section is co-shared between P8 lite model generations, this mistake is easily made.
If you have this issue, just keep trying additional (TWRP) recoveries, the subsequent 2 versions from different publishers that I tried were working fine and the issue stopped.

Cannot start into recovery ALE-L21, DualSIM

Hej,
I recently got hands on my sister's old phone which had a broken touchscreen - I fixed that hardware issue, but now it seems I messed up the software?
1.) It's a P8 lite (2015, ALE-L21) DualSIM, which ran the latest OTA update (I think 4.0.3 or 4.1.3? EMUI)
2.) I followed this method to unlock the bootloader
(https://forum.xda-developers.com/p8lite/general/alternative-method-unlocking-bootloader-t3799294)
3.) that included a rollback to B170 (Android 5, EMUI 3) and rooting with KingRoot
4.) I planned on flashing TWRP, but the phone did not start into the newly flashed recovery, but into the Huawei eRecovery
5.) So I assume that it reinstalls the original recovery upon reboot, I tried to flash twrp again, but whenever I use the button combo (Volume Up+Power)
--> it does show me the red Huawei logo, but afterwards the phone is "on, but unresponsive",
having a dark screen, but the vibrating motor works whenever I touch the bottom row of the screen (where usually the navigation buttons are)
6.) Then I told myself, if I cannot flash twrp, I'd at least try to at least get the latest firmware (B620) installed again,
but neither the local update option nor using the buttom combo for dload works,
instead it has the same issue as described in 5.), going through the restart sequence with the huawei logo, but then being dark with vibrations
Did anyone have similar issues (see especiall point 5) and can help me out?
It's in a state of kinda working (having a usuable, but old firmware), but the restarting seems to wrong and everything that needs a restart (going into recovery, installing local dload update) seems to be messed up
I got it working somehow,
the twrp recovery I used might have been bad, so instead I used the one in the LineageOS14 thread.
When I tried to dload with the *#*#2846579#*#* sign combination, it finally started int TWRP
Flashed latest firmware, did backup (just to be safe this time...)
and now am using AOSPA without the issues described in 5.)

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