Bricked Huawei P9

[Vernicht]

Hello,
after a couple of attempts at installing TWRP recovery, some successful, some not, a ROM reinstall and finally this last factory reset, my Huawei P9 phone is stuck at what appears to be boot or restart loop. It is interesting however that I am unable to turn off the phone at all and it's been like this for an hour. At first, TWRP recovery wouldn't boot but the OS would. Then I did factory reset and phone restarted. Since then it won't boot or turn off. When I hold the power button to turn it off, it vibrates once, then vibrates again and then Huawei logo is displayed. After that a message that says "Your device has been unlocked and can't be trusted." & "Your device is booting now..." which is normal since I unlocked my phone bootloader, but the problem is that it is just stuck there.

It stays there forever, screen on, phone on, can't restart because it comes back to the same point, can't turn it off since battery is impossible to take out... Any hope? I bought the phone a couple of days ago and this is really bad... Help!

Edit: In case someone else stumbles upon similar situation - after trying everything possible with these 3 buttons I had available (vol+- and power), I have managed to boot by (I THINK) holding the power button for 10 secs but releasing it really fast after the screen turns off and BEFORE the first vibration happens.

Edit 2: Now I have the same problem again and I can't seem to get the right button "combo" to pass the booting phase like I did some hour ago... Any ideas?

Edit 3: It appears that the ROM I have flashed caused problems with TWRP - after I got an SD card, managed to put stock ROM (http://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818) on it and then did force upgrade, the phone booted successfully.

Step by step:

1) Drained battery to 0% and forced phone to turn off (otherwise it would vibrate twice and get stuck loading TWRP if I tried to turn it off using power button)
2) When I plugged it in and it got some battery power it started, avoided TWRP and regularly booted the OS (which was causing problems with TWRP in my case I think). If you don't have any OS, do not recharge or turn on your phone until you have prepared and put SD card into the phone
3) Downloaded and extracted the dload folder from the P9 stock ROM archive (http://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818) to root directory of SD card
4) Unplugged and turned off the phone using OS Shutdown option
5) Turned it on by holding power, volup and voldown buttons together - "Your device has been unlocked and can't be trusted. Your device is booting now..." message appeared so I thought it was stuck again and was about to hang myself, but then the OS upgrade started (if it doesn't work right away, try restarting the phone with power, volup and voldown buttons held together again)
6) Upgrade was successful but the phone wouldn't boot without complete factory reset, after which it booted normally. Bootloader was relocked, then I updated to the latest stable EMUI (4.1.1) and life returned to normal.

 

[Vernicht]

BUMP

I can access Fastboot&Rescue mode and use abd (but phone is not rooted). Other than that I can't get to repeat what I did when I managed to boot the phone previous time this happened some hours ago... Can anyone post all volume+- and power key combinations which I can try?

Any other ideas more than welcome...

 

[nscxp2005]

Guys can someone help with this. I'm having the same sort of issues. I have flashed an update and now I have lost touch on the screen. I can't even use twrp because the touch is not working.

Please can someone advise.

Sent from my SM-G928F using Tapatalk

 

[Vernicht]

BUMP

I can access Fastboot&Rescue mode and use abd (but phone is not rooted). Other than that I can't get to repeat what I did when I managed to boot the phone previous time this happened some hours ago... Can anyone post all volume+- and power key combinations which I can try?

Any other ideas more than welcome...

After getting an SD card (everything I did so far was using internal storage) and putting stock Huawei P9 ROM on it (Android 6 and EMUI 4), then shutting down (forced by draining battery) and doing force upgrade (vol+ and vol- held after power up) I have managed to (upgrade and) boot my phone and get it back to normal again. If anyone needs more detailed explanation on how I solved this, feel free to ask.

 

[slidwels]

Open bootloader again, i had the same problem few days ago

 

[nscxp2005]

Yes please vernicht. My touchscreen has stopped responding after flashing an update.app using DC Phoenix.

I really need to get the phone back to normal.

Thanks in advance

Sent from my SM-G928F using Tapatalk

 

[Vernicht]

Yes please vernicht. My touchscreen has stopped responding after flashing an update.app using DC Phoenix.

I really need to get the phone back to normal.

Thanks in advance

Sent from my SM-G928F using Tapatalk

Can you boot into OS? Please provide more exact details.

How I got out of the TWRP(?) boot loop: I couldn't take out the battery, but I have managed to drain it to 0% by letting the phone stay on for hours thus eventually shutting itself down. After that I have charged it and then powered it up. It didn't attempt to boot TWRP (no loop) but instead booted back the OS. After that I could regularly restart the phone and do all operations without getting stuck in loop, which allowed me to issue force upgrade command using hardware power up/down buttons.

 

[nscxp2005]

Nope. I manage to flash it with DC Phoenix fully but it just keeps boot looping and going back to the Huawei logo. Then after that if goes into its recovery menu and the only my to use the menus is with the volume keys.


Sent from my SM-G928F using Tapatalk

 

[Vernicht]

Nope. I manage to flash it with DC Phoenix fully but it just keeps boot looping and going back to the Huawei logo. Then after that if goes into its recovery menu and the only my to use the menus is with the volume keys.


Sent from my SM-G928F using Tapatalk

Are you able to put files on your SD card? If yes, you can try putting stock ROM on it and then force force upgrading (hold vol+ and vol- together after power up). It should overwrite everything and boot up.

 

[nscxp2005]

I have done this but it won't even force flash the stock rom. It gets to 5% and says 'system error'

I followed your suggestion to let the battery drain and then I charged it fully, but when charging it got to 1% and rebooted the phone into eRecovery.

I wish I could get this phone fixed and back to normal.

Sent from my SM-G928F using Tapatalk

 

[Vernicht]

I have done this but it won't even force flash the stock rom. It gets to 5% and says 'system error'

I followed your suggestion to let the battery drain and then I charged it fully, but when charging it got to 1% and rebooted the phone into eRecovery.

I wish I could get this phone fixed and back to normal.

Sent from my SM-G928F using Tapatalk

Did you use this stock ROM for P9 (if it's EVA-L09 like mine) or something else?
http://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818
It worked fine with force upgrade for me, while some other ROMs didn't.

Do you have Wipe cache and data/factory reset options available in eRecovery, did you try that?

 

[nscxp2005]

I'll try that. The only problem I have is my touchscreen won't respond under eRecovery. I have to use the volume and power key to navigate. Any idea what's happened there?

Sent from my SM-G928F using Tapatalk

 

[Vernicht]

I'll try that. The only problem I have is my touchscreen won't respond under eRecovery. I have to use the volume and power key to navigate. Any idea what's happened there?

Sent from my SM-G928F using Tapatalk

It will probably return to function after you restore to stock ROM. Until then you can use power button to select items in eRecovery if needed.

Btw I have edited my original first post in this thread with step by step guide on what I did in my case.

 

[nscxp2005]

Thank you Vernicht for all your help.

I finally manage to get the phone fully working again. I also managed to get it changed from C900 to C432, lock the bootloader and join the beta.

Thank you so much again. It's very much appreciated.

Merry Christmas too

Sent from my SM-G928F using Tapatalk

 

[trx850]

Hi nscxp2005
how did you manage that?
i have the same Problem.
i have done a "Wipe Cache" and a factory reset.
i have copied the "update.app" from PauloBrien zip on a sd card in a folder named dload.
then i have done a Force flash -> it goes to 5% an says Invalid File.
when i look in the device with DC Phoenix it says it is a EVA-L09C900B136
Why have i done that?
My wive have the EVA-L09C432B136 and i updatet it OTA to Nougat.
i thought i could switch to that version to get the new Nougat but something went wrong......

thanks in advance and sry for my english =)

 

[jacko9966]

Hi nscxp2005
how did you manage that?
i have the same Problem.
i have done a "Wipe Cache" and a factory reset.
i have copied the "update.app" from PauloBrien zip on a sd card in a folder named dload.
then i have done a Force flash -> it goes to 5% an says Invalid File.
when i look in the device with DC Phoenix it says it is a EVA-L09C900B136
Why have i done that?
My wive have the EVA-L09C432B136 and i updatet it OTA to Nougat.
i thought i could switch to that version to get the new Nougat but something went wrong......

thanks in advance and sry for my english =)

Did you manage to fix this issue??

---------- Post added at 10:55 PM ---------- Previous post was at 10:52 PM ----------

Hi Guys, hope you can help

I have got an P9 EVA-L09 which I tried to update to B378 but failed and now it stuck in a boot loop and won't recover using the phone.

I have tried to download the update mentioned above and doing a forced recovery on the phone Power + VOL+ + VOL- but no luck, gets 5% and fails.

Would like some help please.

 

[weineckcobra]

Hello, I have the same problem, I tried to install Lineage 14.1 and it didn't work. Then i tried to go back to EMUI 5.0 and i just all fell apart. No i have no android on my P9 (cos i wiped all data and the system through TWRP 3.1.1.1), and now my touchscreen doesn't work. When i try to force install, it blockes on 5%. Anyone have any idea on how to fix it? Thanks

 

[Rafa Mistry]

Hello, I have the same problem, I tried to install Lineage 14.1 and it didn't work. Then i tried to go back to EMUI 5.0 and i just all fell apart. No i have no android on my P9 (cos i wiped all data and the system through TWRP 3.1.1.1), and now my touchscreen doesn't work. When i try to force install, it blockes on 5%. Anyone have any idea on how to fix it? Thanks

Inatall System via Srk Tool

 

[SherifSabet]

Bricked my P9 while trying to remove branding.

Hello,
after a couple of attempts at installing TWRP recovery, some successful, some not, a ROM reinstall and finally this last factory reset, my Huawei P9 phone is stuck at what appears to be boot or restart loop. It is interesting however that I am unable to turn off the phone at all and it's been like this for an hour. At first, TWRP recovery wouldn't boot but the OS would. Then I did factory reset and phone restarted. Since then it won't boot or turn off. When I hold the power button to turn it off, it vibrates once, then vibrates again and then Huawei logo is displayed. After that a message that says "Your device has been unlocked and can't be trusted." & "Your device is booting now..." which is normal since I unlocked my phone bootloader, but the problem is that it is just stuck there.

It stays there forever, screen on, phone on, can't restart because it comes back to the same point, can't turn it off since battery is impossible to take out... Any hope? I bought the phone a couple of days ago and this is really bad... Help!

Edit: In case someone else stumbles upon similar situation - after trying everything possible with these 3 buttons I had available (vol+- and power), I have managed to boot by (I THINK) holding the power button for 10 secs but releasing it really fast after the screen turns off and BEFORE the first vibration happens.

Edit 2: Now I have the same problem again and I can't seem to get the right button "combo" to pass the booting phase like I did some hour ago... Any ideas?

Edit 3: It appears that the ROM I have flashed caused problems with TWRP - after I got an SD card, managed to put stock ROM (http://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818) on it and then did force upgrade, the phone booted successfully.

Step by step:

1) Drained battery to 0% and forced phone to turn off (otherwise it would vibrate twice and get stuck loading TWRP if I tried to turn it off using power button)
2) When I plugged it in and it got some battery power it started, avoided TWRP and regularly booted the OS (which was causing problems with TWRP in my case I think). If you don't have any OS, do not recharge or turn on your phone until you have prepared and put SD card into the phone
3) Downloaded and extracted the dload folder from the P9 stock ROM archive (http://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818) to root directory of SD card
4) Unplugged and turned off the phone using OS Shutdown option
5) Turned it on by holding power, volup and voldown buttons together - "Your device has been unlocked and can't be trusted. Your device is booting now..." message appeared so I thought it was stuck again and was about to hang myself, but then the OS upgrade started (if it doesn't work right away, try restarting the phone with power, volup and voldown buttons held together again)
6) Upgrade was successful but the phone wouldn't boot without complete factory reset, after which it booted normally. Bootloader was relocked, then I updated to the latest stable EMUI (4.1.1) and life returned to normal.

I have the same issue after flashing the rollback package from the official huawei site. The phone isn't rooted, it just had a branding for some odd reason. So I installed the C432B182 but somehow ended up with a C900B... firmware. So I installed the Rollback package C900B300 using the 3 button method. It said successfull but ever since I've been stuck in the same loop. At the logo. Trying to enter recovery mode (Volume Up + Power) or Force flash any of the firmwares (stock C432.. or rollback C900) doesnt succeed. It wont attempt. Only vibrates as you described and turns the screen off for a second before entering the same loop again.

How did you manage to enter the flash Menu??

Thanks in advance and hope you can help.

 

[Sattarov]

I have the same issue after flashing the rollback package from the official huawei site. The phone isn't rooted, it just had a branding for some odd reason. So I installed the C432B182 but somehow ended up with a C900B... firmware. So I installed the Rollback package C900B300 using the 3 button method. It said successfull but ever since I've been stuck in the same loop. At the logo. Trying to enter recovery mode (Volume Up + Power) or Force flash any of the firmwares (stock C432.. or rollback C900) doesnt succeed. It wont attempt. Only vibrates as you described and turns the screen off for a second before entering the same loop again.

How did you manage to enter the flash Menu??

Thanks in advance and hope you can help.

Hello!
At me too such problem. When charging to sit at 0% and plug it into the charger, it immediately turns on and goes into the system, then the screen is worth a long logo. I have a phone EVA-L09C627B150.

Help me find my full version! Or I can use this version by reference https://forum.xda-developers.com/p9/development/stock-rom-dload-file-p9-eva-l09-b136-t3382818

Sorry for my English!