Hi everyone!. I purchased my Huawei P9 dual sim (Chinese Version- AL00) 2 weeks ago. I unlocked its bootloader and changed OEM to EVA-AL19C636 and flashed Nougat Beta. Then I reflashed back to EMUI 4.1 (AL19C636B190) but I forgot to flash HUAWEI P9 Rollback Package (EVA-L19, from EMUI5.0+Android7.0 rollback to EMUI4.1+Android 6.0, C900B300). Everything flashed OK, the phone restarted but there is a bootloop at Huawei logo. It cannot be turned off. No recovery,no download mode, cannot force updat, nothing except fastboot. Bootloader is locked again and I cannot unlock it (though I have unlock code). I tried many times but no success. There is always an error:
"FAILED: Remote: Command not allowed"
I can't flash anything using fastboot.
Anybody helps me!. I really need help. Plz!
ledinhbac said:
Hi everyone!. I purchased my Huawei P9 dual sim (Chinese Version- AL00) 2 weeks ago. I unlocked its bootloader and changed OEM to EVA-AL19C636 and flashed Nougat Beta. Then I reflashed back to EMUI 4.1 (AL19C636B190) but I forgot to flash HUAWEI P9 Rollback Package (EVA-L19, from EMUI5.0+Android7.0 rollback to EMUI4.1+Android 6.0, C900B300). Everything flashed OK, the phone restarted but there is a bootloop at Huawei logo. It cannot be turned off. No recovery,no download mode, cannot force updat, nothing except fastboot. Bootloader is locked again and I cannot unlock it (though I have unlock code). I tried many times but no success. There is always an error:
"FAILED: Remote: Command not allowed"
I can't flash anything using fastboot.
Anybody helps me!. I really need help. Plz!
Click to expand...
Click to collapse
Sorry 4 u! I just wanna ask u if the nougat rom was working good! I want to flash EVA-L19 rom to EVA-AL00! Why u wanted to rollback? Can u tell me the method u used to flash... Thx
Addymore said:
Sorry 4 u! I just wanna ask u if the nougat rom was working good! I want to flash EVA-L19 rom to EVA-AL00! Why u wanted to rollback? Can u tell me the method u used to flash... Thx
Click to expand...
Click to collapse
As I said, I changed it into EVA-AL19C636 then updated to Nougat, not AL00 updated to Nougat.
There is no problems with EMUI 5.0 but I want to have rooted firmware so I returned to EMUI 4.1. But .....I'm facing with my problem
Anyone can help me?
Help me via Teamview
ledinhbac said:
As I said, I changed it into EVA-AL19C636 then updated to Nougat, not AL00 updated to Nougat.
There is no problems with EMUI 5.0 but I want to have rooted firmware so I returned to EMUI 4.1. But .....I'm facing with my problem
Click to expand...
Click to collapse
Can u tell me how u changed to EVA-L19? I want this EMUI 5 and it seems the EVA-AL00 is not getting it anytime soon....and I don't want the chinese stuffs....
You have to change the oem.info into Al19 (using SRK tool) then flash Al19 rom.
hi ledinhbac
I experienced the similar issue with you. I rollback to EMUI 4.1 (AL19C636B190) directly from (L19C636B190) by flashing a HUAWEI P9 Rollback Package (EVA-L19, from EMUI5.0+Android7.0 rollback to EMUI4.1+Android 6.0, C900B300) instead of updating to L19C636B361. [ wrong SD card inserted].
My phone restarted but there is a bootloop at Huawei logo. It cannot be turned off. It can only go into fastboot mode. Bootloader is locked and I cannot unlock it (though I havent unlock code). I tried
There is always an error:
"FAILED: Remote: Command not allowed"
Could you solve the above situation?
Hi, I have a P9 Plus with firmware VIE-AL10C00B183 and unlocked bootloader. I have TWRP installed.
I'd like to upgrade the phone to nougat. I don't care if TWRP is removed and the phone locked again in the process.
How can I do that?
Thank for your help
Is it possible to downgrade from 7.0 to 6.0 just flashing the rom with QFIL? I'm facing some problems with the Quick Charge in the Nougat Stock version and I want to do a downgrade. Mine isn't rooted and the bootloader is locked.
gugax10 said:
Is it possible to downgrade from 7.0 to 6.0 just flashing the rom with QFIL? I'm facing some problems with the Quick Charge in the Nougat Stock version and I want to do a downgrade. Mine isn't rooted and the bootloader is locked.
Click to expand...
Click to collapse
yep possible flash stock qfil 2.3.044 or any marshmallow version
it is possible to downgrade your rom using QFIL method.. backup your data first
It is even possible through TWRP I was able to downgrade from Stock ZUI 2.5.381 Android 7.0 to MIUI 8 Android 6.0.1 without any problem just factory reset through TWRP before install the MIUI 8 based on 6.0.1 and the TWRP even show while installing the it is taking the current new kernel 3.18.... and it is adopting it for the 6.0.1 ... I really like this feature .... and yes everything works fine no problems all features works fine no drivers problem or other interruptions ...
If I buy this phone, should I avoid upgrading to 7.x? `
Hi Everyone;
I dont know i am writing right place or not but i cant get answer to my question till 2 days in RR OS's own page... May be i choose old rom and its not favourite now but i want to change my phone's (Huawei P9 - EVA L09) stock rom with lighter Android 8 (Oreo) custom rom.
I got my phones oem unlock code via DC Unlocker than unlock my phone than i install TWRP's (Open Kirin in Edition) than i rooted my phone vith Super Su.
Everything was ok till that step but than, when i try to install Resurrection Remix's Oreo version for my phone, but i got error in installation.
I attached error photos to this message.
After unsusccess install process i cant open my phone and my phones Internal memory looked 0 mb, then, fortunately i can recover my phone with Huawei's own eRecovery.
I wanna know what did wrong than i will try to change my phones OS asap...
any_body said:
Hi Everyone;
I dont know i am writing right place or not but i cant get answer to my question till 2 days in RR OS's own page... May be i choose old rom and its not favourite now but i want to change my phone's (Huawei P9 - EVA L09) stock rom with lighter Android 8 (Oreo) custom rom.
I got my phones oem unlock code via DC Unlocker than unlock my phone than i install TWRP's (Open Kirin in Edition) than i rooted my phone vith Super Su.
Everything was ok till that step but than, when i try to install Resurrection Remix's Oreo version for my phone, but i got error in installation.
I attached error photos to this message.
After unsusccess install process i cant open my phone and my phones Internal memory looked 0 mb, then, fortunately i can recover my phone with Huawei's own eRecovery.
I wanna know what did wrong than i will try to change my phones OS asap...
Click to expand...
Click to collapse
There are Open Kirin Treble Oreo ROMs (RR, LOS) for Huawei/Honor phones:
https://openkirin.net/user_guide/openkirin-rom-installation-instructions/
Installation instructions require:
1) OK Oreo ROMs can only be installed over Huawei stock Oreo (not over stock Nougat)
2) OK ROM must be flashed by Fastboot, not from TWRP (btw, TWRP for Huawei Oreo is different than TWRP for Nougat because of different partitions names, sizes, etc)
There is also XDA thread about Open Kirin Treble ROMs (on P9):
https://forum.xda-developers.com/p9/development/roms-openkirin-aosp-collection-t3828806
and for (1), there is a thread describing how to rebrand P9 L09/L19 to AL10c00 and update to Oreo (b540):
https://forum.xda-developers.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
zgfg said:
There are Open Kirin Treble Oreo ROMs (RR, LOS) for Huawei/Honor phones:
https://openkirin.net/user_guide/openkirin-rom-installation-instructions/
Installation instructions require:
1) OK Oreo ROMs can only be installed over Huawei stock Oreo (not over stock Nougat)
2) OK ROM must be flashed by Fastboot, not from TWRP (btw, TWRP for Huawei Oreo is different than TWRP for Nougat because of different partitions names, sizes, etc)
There is also XDA thread about Open Kirin Treble ROMs (on P9):
https://forum.xda-developers.com/p9/development/roms-openkirin-aosp-collection-t3828806
and for (1), there is a thread describing how to rebrand P9 L09/L19 to AL10c00 and update to Oreo (b540):
https://forum.xda-developers.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
Click to expand...
Click to collapse
Everything looks ok but my phone is in Android 7.0 stock rom.
How can i upgrade it to Oreo vith custom rom?
On the other hand my FRP looks like unlocked?
Must it be locked to install OpenKirin?
any_body said:
Everything looks ok but my phone is in Android 7.0 stock rom.
How can i upgrade it to Oreo vith custom rom?
On the other hand my FRP looks like unlocked?
Must it be locked to install OpenKirin?
Click to expand...
Click to collapse
First, go back to stocl Nougat, and please read again my previous answer - I gave you link for HWOTA7 method for rebranding from stock L09/L19 to AL10 and then upgrading toAL10c00 b540 Oreo
If you don't like unlocked FRP, then go back to stock Nougat and re-lock Bootliader (and then lock FRP back).
But as long as you do rooting, installing custom ROMs, or rebranding to that AL10, you must have unlocked Bootloader and for unlocked Bootliader you must have also unlocked FRP
zgfg said:
First, go back to stocl Nougat, and please read again my previous answer - I gave you link for HWOTA7 method for rebranding from stock L09/L19 to AL10 and then upgrading toAL10c00 b540 Oreo
If you don't like unlocked FRP, then go back to stock Nougat and re-lock Bootliader (and then lock FRP back).
But as long as you do rooting, installing custom ROMs, or rebranding to that AL10, you must have unlocked Bootloader and for unlocked Bootliader you must have also unlocked FRP
Click to expand...
Click to collapse
Everything is OK but when I lock back my Bootloader and Recover my original Android 7.0 Android with Huawei's official eRecovery, my FRP still shown unlocked...
any_body said:
Everything is OK but when I lock back my Bootloader and Recover my original Android 7.0 Android with Huawei's official eRecovery, my FRP still shown unlocked...
Click to expand...
Click to collapse
(Re)installing/OTA updating some stock firmwares lock back both OEM/FRP and Bootloader, but it depends on the firmware itself (Huawei who prepare them).
If you already installed latest firmware for your cust by eRecovery, you can only try to do Factory reset from stock Recovery or eRecovery
Otherwise, rolling back to Marshmallow (and after that updating again to Nougat) shoulf fix the problem with disabled OEM unlock option (I had it twice but in the opposite way, OEM was locked but its option was disabled)
However, having unlocked FRP is not a big trouble. You can still open Bootloader and root/flash, etc - problem would be if OEM option was disabled but locked - then you could not unlock Bootloader and flash anything from Fastboot
With FRP=Factory Reset Protection unlocked you (only) have:
- 'annoying' note that phone is not secure while booting
- ability to start Factory reset from Recovery and eRecovery (with licked FRP, Factory reset is only allowed once you login to the System, from Settings or Project menu)
- ability to unlock Bootloader and flash things
So, what if i wanna install Android 7 custom rom? How can i do it? Can i do it with TWRP'S special Open Kirin Edition directly from Stock Rom?
Can i upgrade my phone to Android 8 after i install Android 7 custom rom first or i have to do it with Rebrand / Update Tool first?
Because rebrand / update tool (or SRK Tool i am not sure) look so complicated and i am afraid to make hardbricked my phone... (i backed up my phone with HiSuite but i am not sure can i recover my phone with it if i unbrick my phone?)
I am using EVA-L09C464B389 rom now.... On the other hand, i cant be sure which AL10 (Oreo) rom is right for me, because when i search in russian page you offered, there is more than one alternative...
I hope i can explain what i mean with my poor English...
any_body said:
So, what if i wanna install Android 7 custom rom? How can i do it? Can i do it with TWRP'S special Open Kirin Edition directly from Stock Rom?
Can i upgrade my phone to Android 8 after i install Android 7 custom rom first or i have to do it with Rebrand / Update Tool first?
Because rebrand / update tool (or SRK Tool i am not sure) look so complicated and i am afraid to make hardbricked my phone... (i backed up my phone with HiSuite but i am not sure can i recover my phone with it if i unbrick my phone?)
I am using EVA-L09C464B389 rom now.... On the other hand, i cant be sure which AL10 (Oreo) rom is right for me, because when i search in russian page you offered, there is more than one alternative...
I hope i can explain what i mean with my poor English...
Click to expand...
Click to collapse
How do you install Noigat custom ROM? - decide which custom ROM you want to use and then find its documentation and learn there how it must be installed.
And/or, find the forum/thread about that custom ROM and read the OP posts, and ask your questions there
Which AL10 ROM you want to install...bxs on Russian forum there are alternatives? - If you want to follow XDA guide, then READ it and you will find answer there.
But if you want to follow Russian guide, then register to the Russian forum and ask your questions there
Good night and good by, I'm disconnecting from this thread and will no more read/answer - good luck
Dear @zgfg
First of all thanks for all your answers, but I am not use Russian forum same time with here. The page you advice me (in xda), and the application in there, using Russian webpage to dl stock roms... Sorry if I make you angry...
Hi. Short time ago i've bought p20 pro (CLT-L29C432), downgraded EMUI to 8.1 from 10.0 and then flashed custom rom, based on EMUI 8.0 for another model (not 432).
Ofc phone caught bootloop...
Installed with fastboot "Huawei P20 Pro CLT-L29 Charlotte-L29C 8.1.0.128a(C432) Firmware Android8.1.0 EMUI8.1.0 05015BGR" and few other based at 8.1.0 and 8.0, but also bootloop.
I can install twrp, get into it, but nothin more - only bootloop.
Maybe some1 can help with working instruction for solving this problem. Thank you for answers.
Have you unlocked the bootloader? If yes message me...its actually easy (if the bootloader unlocked)...