Hello, some procedure or guide to downgrade a p8 lite 2017 dual sim (PRA-LX1), all stock looked, actually in BETA Oreo 8.0.0.321 (C432log) to official Nougat?
- I have used Firmware Finder but all rollback firmwares are not aproved for my IMEI, and the aproved not explicit rollback firmwares causes error (i supose dont format or create partitions to rollback)
- Hisuite, dont show option to rollback, in update, always display i am in last version. And the option of restore in fastboot ends with a your device not support restore.
- In erecovery the option to download last firmware a recovery, conects to wifi but always error when download.
Remenber, i am full stock, no twrp, no unlocked bootloader, or frp, etc,etc.
Can someone helpme, or the only solutions is wait for new Oreo oficial update or some milaculous aprovation for me imei in rollback firmwares?
How do you install oreo?
Sparco21 said:
How do you install oreo?
Click to expand...
Click to collapse
huawei beta program, i think
Sent from my PRA-LX1 using XDA Labs
Did you find a way to rollback from oreo ?
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...
I tried to install this fRomFuture ROM for my P10
[ROM] fRomFuture - Stock Rom L29 (B179) | XDA Developers Forums (xda-developers.com)
It worked perfectly, but then I tried to install the same dev's Oreo version, without realizing I need to update the "Firmware" (EMUI version?) first
[ROM] fRomFuture B370 | XDA Developers Forums (xda-developers.com)
That failed so I wiped, and tried to install the Stock fRomFuture. The install finishes without issue, but at first boot, the phone crashes, reboots and then goes "without issue" into the OS. But then the OS crashes after 1 minute and the phone reboots.
Wiping and reinstalling doesn't help anymore. Did I mess something up on my phone or the partitioning?
I unlocked the bootloader on EMUI 5.1 (Nougat) using DC-unlocker and installed TWRP 3.1.1-0 on it without issue.
I didn't update the "Firmware" to 8 or 9.
Also, forgive me, because this is my first Huawei and I don't understand anything of this "Firmware" talk that might have messed up my phone. I'm familiar with installing LineageOS on other phones such as Motorola's and Samsung's, but here it works totally different and caused me to bork my device?
I wiped the System and I have no back-up of my original Stock ROM
I tried this fix (HOWTA, rebranding), but it fails to install after the update.bat
dual sim functionality | XDA Developers Forums (xda-developers.com)
I also found sites giving the stock ROM in update.zip, but flashing that with TWRP fails.
Only ROM I can install is the one I mentioned above, but that keeps crashing now.
I'm really lost and registered here to get help. I don't want to abandon my "soft-brick" yet. The support on this device seems to be a little old, so I hope someone is still present.
Phone is VTR-L29C432. Build of fRomFuture is B179 (does that matter?)
UPDATE: (putting this for future reference in case it might help other people)
I managed to fix the issue by using a (more recent) HOWTA tool, a less buggy TWRP (3.1.1-0 instead of 3.1.0-0) and implementing update.zip, update_data_public.zip and update_all_hw.zip from build B185 into the update directory of the tool while flashing everything via fastboot.
System got restored to stock VTR-L29C432B185, latest Nougat build from 2018/01. Bootloader was locked again and twrp removed, but could be unlocked with same older code I purchased from DC Unlocker.
My only questions now is how to "correctly" install a custom rom like the OpenKirin for EMUI 8.1? First update firmware from EMUI 5.1 (Nougat) to 8.0 (Oreo) via with OTA before messing?
ThoriumNitride said:
UPDATE: (putting this for future reference in case it might help other people)
I managed to fix the issue by using a (more recent) HOWTA tool, a less buggy TWRP (3.1.1-0 instead of 3.1.0-0) and implementing update.zip, update_data_public.zip and update_all_hw.zip from build B185 into the update directory of the tool while flashing everything via fastboot.
System got restored to stock VTR-L29C432B185, latest Nougat build from 2018/01. Bootloader was locked again and twrp removed, but could be unlocked with same older code I purchased from DC Unlocker.
My only questions now is how to "correctly" install a custom rom like the OpenKirin for EMUI 8.1? First update firmware from EMUI 5.1 (Nougat) to 8.0 (Oreo) via with OTA before messing?
Click to expand...
Click to collapse
El codigo del bootloader sigue siendo el mismo
Hello everyone,
I recently wanted to upgrade my Stock P9 Plus from Android 6.0 EMUI 4.1.1 to at least Android 8. I unlocked the Bootloader with DC-Unlocker, installed TWRP and tried Openkirin. It didn't work and now my Phone doesn't boot because there is no valid OS installed.
Im searching for a stock ROM for my VIE-L09 that returns my phone to the factory version.
I'd also be interested in installing a custom ROM, but i didn't find anything that works.
Please help me.
Hello everyone,
I'm trying to upgrade my Huawei P9 Plus with Android 6 to Android 8.
Initially the phone had Android 7 and a Vodafone Branding, so I did a rollback to Android 6 and installed VIE-L09C432B161 and the VIE-L09C432B181 Firmware with changing the oeminfo to c432 with the SRK Tool.
Before I can rebrand the phone to AL10 with the Rebrand-Update-Tool-HWOTA7-P9-PLUS-VIE to install a Android 8 Firmware, I have to upgrade my phone again to Nougat with EMUI 5.
Unfortunately the OTA updates via the Update Manager are no longer available, so I tried to install different Nougat Firmwares via dload.
Every UPDATE.APP i tried fails at 5% or 37%
At the moment I have this B181 Firmware installed:
https://forum.xda-developers.com/t/vie-l09c432b181-vie-l09c432b360.4278905/#post-86382521
I also tried installing Nougat Firmwares with the HuRu Updater, but so far it didn't work.
Could anyone explain me please, what I have to do next to install a Android 7 Firmware successfully?
Thank you!