Stuck on board firmware - Huawei P9 Questions & Answers

i bricked my p9 but i recorved it with IDT board firmware, tried to dload, software install failed, i try with hisuite, fails to check says unlock bootloader but cant flash anything expect stock stuff, plz ned fix asap

fixed it by dloading emui 4 firmware

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P9 Error when downgrade from c432b167 to c432b136

Hi Guys,
i really need your help. I debranded and flashed my P9 to a c432b167 firmware using the SRK Tool. But now im unable to downgrade to b136 (to be able to get the b170 OTA).
After i unzipped the full b136 to my SDCard und trying to flash it with the 3-Button Method, im always get an Error at 5%: "Software install failed! - Incompatibility with current version. Please download the correct update package."
Also the full b170 brings the same Error.
I would be very happy if someone could help me
Thanks in advance
mike
i would like to know this too cause whenever i tried to flash a firmware i get the same error.
hope someone can help.
Okay, i was able to solve the problem by myself. Here is what i did:
Using the SRK Tool i reopened the bootloader, installed the twrp recovery and rooted the P9. Then i flashed the c432 oeminfo again. Right after this i was able to flash the c432b136 using the stock recovery without getting the error. When the p9 rebooted i recieved the c432b170 OTA.

L19 Problems during rollback

Hi, first time posting here, forgive me if I'm doing something wrong...
I flashed Nougat beta (L19C432B322), regretted it, and now wanting to go back to EMUI 4.1.1 (before flashing, I was on L19C20B150). Trying to follow the steps for the Huawei official rollback package, but problem is I can't even get the intermediate package (C900B300) to work through dload method... update always fails at 5%.
I am unable to relock my bootloader using the SRK tool. The error I get is "remote: root type is risk".
My phone has never been rooted.
Any help would be greatly appreciated!!
Edit: Tried to flash L19C636B168 full rom using dload method. Now bootloader is locked, but no rom is installed, booting always gives erecovery. Unable to flash any recovery via fastboot.

Help me: P9 in bootloop after unlock bootloader

Hi
In these days I tried to update my P9 with nougat, I have EVA-L09C900B182, this version give problem with ota update, so I follow the procedure to rebrand.
I have unlock bootloader I done several step but something goes wrong
Now I have my phone that permits only a fastboot with battery at 0%!
I tried with adb and fastboot to flash boot.img recovery.img and systerm.img but nothing happen.
I downloaded stock rom flashable but I'don't what can I do to repair my phone.
Please suggest me what can I do.
Regards
Ely

Please help unbrick my phone

I have bricked my phone after Magisk install fail.
I first unlocked bootloader succesfully
then i installed twrp succesfully
then i flashed magisk using twrp - this failed and sent device to erecovery. (which won't find package)
i used twrp to wipe data, now i was able to boot, and it installed like a fresh EMUI. However, almost all apps were broken- could not download themes/camera shut down etc.
To fix this, i wanted to restore to stock and did the following: download update package for my VTR-L09 of EMUI b175 (I was on b162 before), used Huawei Update Extractor to extract files and flashed BOOT.IMG, SYSTEM.IMG and RECOVERY.IMG. This was done without error.
Now my phone won't boot at all. I am stuck at the 'your device can't be trusted' screen. I cannot go into recovery. When I connect via USB, I hear the chime in Windows but I can't seem to connect with ADB.
What to do now?? Am I hard-bricked? I hope that anyone knows how to deal with my phone bricked like this. Please help me to solve this issue.
Best of wishes.
Edit: I am able to enter forced recovery, however updates fail at 5%.
I am also able to fastboot with USB, however I am unsure what to do next.
I unbricked my phone! Many thanks to who ah way and his solution found here: https://forum.xda-developers.com/p10/how-to/guide-unbricking-p10-using-hwota-windows-t3714416
:victory:
why are you doing it when you dont understand it?
You cannot flash part of B175 firmwar eover B162 firmware.. OMG.
use the HWOTa to go back to stock and please stop playing with the device without propper knowledge

GR3 PRA-LA1C185 bricked

Hello everyone
i need help about my device
without making backup, i wiped system , and now am looking how to recover it.
bootloader and frp are UNLOCKED
update.app wont work , cuz it says update install failed
i downloaded many official rom thru huawei firmware finder and flash them with fastboot , but no result.
is there any other solution, or i have to use DC Phoenix .
Thx
https://forum.xda-developers.com/p8...on/guide-unbrick-huawei-p8-lite-2017-t3766678
Try this method or download via eRecovery

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