Please Help Me!.. - Huawei P9 Questions & Answers

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...

Related

Q:p9 plus debranding.

now i know why everytime i manual update my p9 plus c636b103 to higher firmware is making it c900. its because my p9 plus is locked to its network carrier and the network smart is not releasing the ota for p9 plus. i have a vendor of smart country ph.,
pls bare to read as your knowledge/experience will help alot not only to me but to the future whom might get the same questions as mine. pls answer every questions./problems i have encountered thank you.
Q:#1 as i understand i think i need to do the debranding?? to unlock my p9 plus from my network, at first it made me so confused because my sim is unlocked i can use any sim. but then i realized its still locked in system updates from smart ph.
Q:#2 do i need to unlock bootloader install twrp and root the p9 plus first before contiunuing to the vdo of debranding?
Problem: #1, i dont fully understand the vdo of droidth in debranding the unit. i got lost of understanding in the changing of ro. build. id something like that. i tried to do the extracting the verlist but when i open the extracted verlist. img in notepad i only get random letters and symbols(ex. b&+g~), but in the video i should see vie/nxtc636b***. so i really got lost.
Problem: #2. i know i need the unlock code from huawei website.before i can unlock bootloader and i already get a code but the problem is i forgot to right it down as i only txted it to my number which i also use in my p9plus and i factory reset my p9 plus when i install back to c636b103 because if i dont factory reset after install b103 i got null imei, camera crashes, internal storage none. but after factory reset its ok.
so how am i gonna get a code again? is it still possible to get the code again? can someone pls put the link? thx.
thank you.
your reply will be much appreciated.
Yes, you need to debrand your phone and install the generic firmware for your region (for example, c432 firmwares for europe). In order to do this, you need unlocked bootloader and twrp. Root is optional, it depends on how you want to change the OEMinfo. For the unlock code I think you can ask it again to huawei in the same way you asked for it the First time. For problem#1, sorry but I have no idea what you are talking about because I didn't use that guide. Maybe try to root the phone and then edit the file directly on it with somethin like root explorer.
xtype23 said:
Yes, you need to debrand your phone and install the generic firmware for your region (for example, c432 firmwares for europe). In order to do this, you need unlocked bootloader and twrp. Root is optional, it depends on how you want to change the OEMinfo. For the unlock code I think you can ask it again to huawei in the same way you asked for it the First time. For problem#1, sorry but I have no idea what you are talking about because I didn't use that guide. Maybe try to root the phone and then edit the file directly on it with somethin like root explorer.
Click to expand...
Click to collapse
can i use any firmware in debranding? and should i first go back to b103? i have frimwares here b180 b190 b170 b130 b362.. all ar3 c636, what should i use? and can i do now the debranding process even if im still on c900b180?
Since you are on C900, I believe your cust is broken. Read here: https://www.google.it/amp/s/forum.xda-developers.com/p9/how-to/how-to-change-cust-c900-c432-t3392824/amp/ note: it's about p9, don't download or flash anything from there.
Now if you want you can try these steps:
1- unlock bootloader (if it's still locked)
2- install twrp
3- flash via twrp the attached file (ONLY if your phone is supposed to be L29-C636, which I believe it is)
4- install a C636 firmware with DLOAD metod
Now you should be on C636 firmware with a debranded phone.

[Q] LOCK BOOTLOADER on OREO (not relock)

Hello,
I was on B360 Oreo.
I unlocked bootloader, flashed TWRP, used MAGISK (16) to modify boot(ramdisk) partition, flashed it and got ROOT.
Then I flashed HYPER KERNEL.
Now i realised that custom kernel gives me nothing special in term of battery life (after 7 days) so i flashed back all stock partitions (BOOT, RECOVERY, KERNEL).
Now I am on stock, but with bootloader unlocked.
So i can get updates, but no ANDROID PAY.
The TASK is: How to lock bootloader. I mean LOCK not RELOCK.
ON nougat when i used the HWOTA to debrand my device the device was automatically locked after the change.
Now on HWOTA8 i flashed all three parts of the B360 full ota to get the bootloader locked, but still unlocked.
I think to erase and flash OEMINFO again, but i am afraid to brick the device by that.
Does anybody know how to make forced update that the bootloader will lock?
@Blackball maybe?
Actually the only way i discover to do this is, go Back to nougat, and the update vía firmware Finder vía proxy while you had your bootloader locked after rebranding again, Cheers brother
will try to update via firmware finder from b360 to b365 full firmware. Will see.
How this went for You?

downgrade?

Hi guys
Someone has succeeded with downgrade from oreo to nougat ? I need go to huawei service, to exchange the display, but problem is "relocked bootloader"
So many tutorials here, which to follow for downgrade and have "locked bootloader" ?
You can use HiSuite or install the downgrade firmware through Firmware Finder. It has the normal Nougat version, but in the description it tells that it downgrades.
HiSuite tells me that I have the latest version so.. I cant downgrade from HiSuite, or if i can tell me how to do it please
@yungshadow
As M1chiel said, try with Firmware Finder.
Remember!! Everything is on your own risk!!
Don't know which version you have, but for me this is the roll back firmware...
Let's try. But.. still 0%
If you use proxy option, you have to set proxy in WiFi settings.
localhost and 8080
Then start download and wait until 4-5%, then disable proxy and continue download.
i'm using DNS. Now 11% XD
ok i'm finally have emui 5. Now i must rebrand ?
That I don't know, I already didn't understand why you wanted to downgrade ??
yungshadow said:
ok i'm finally have emui 5. Now i must rebrand ?
Click to expand...
Click to collapse
Look here: https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013/page38
Can't do anything with this trash device, even TWRP fails to install. What a waste of money!
djg269 said:
That I don't know, I already didn't understand why you wanted to downgrade
Click to expand...
Click to collapse
I need to have bootloader status "locked" not "relocked" so i must rebrand to l09 and back to l29 yeah?
Ok guys
I Found a solution.
1. Downgrade from Oreo via FF using B185 (downgrade firmware) thanks
djg269 said:
2. Download some L09 firmware and install via FF
3. After installing I had bootloop (huawei logo, booting system for 10-15 sec and still restarting)
4. Enter eRecovery VOL-UP + POWER > Wipe data and cache
5. After Wipe phone said it's still L29 but now bootloader is locked not relocked
So i'm done now
Click to expand...
Click to collapse
Glad you got it fixed!!
Sent from my VTR-L09 using XDA Labs
I have a small question - in FF it says to make sure my current version is not "unlocked" - does that mean the bootloader or...? I just want to downgrade to B180 so I can install HuShed. I'm on L29C432B360 currently.
I don't remember this information. Could u send here Screenshoot with that dialog from FF ?
Same screenshot as post #4 -> https://forum.xda-developers.com/showpost.php?p=76556011&postcount=4
I used b185 from b360 with unlocked bootloader and I had no problems.
You should use b185(rollback firmware) and after this will be able toinstall whatever you want
Alright, last question - I have TWRP installed for 8.0. Will this affect the downgrade somehow? Because for example I can't install OTAs with TWRP. I'm sorry I'm kinda new to these kinds of stuff.
I didn't have installed twrp for 8.0 when i Decided to do downgrade so I think it doesn't matter but you can flash stock recovery for 8.0 if u want ofc.
Now i'm on 8.0.0.365(c432) but with official OTA update

Revert rebrand

Hey everyone,
So, a couple months back I rebranded my EVA-L09 to a VIE-AL10 through the rebrand tool.
A couple weeks back I wanted to revert back to EVA-L09 to go back to Magic Rainbow v4 or v3.
I failed in trying to rebrand it back and ended up where I am now, I have TWRP installed, I can do the dload methods to install whatever, but I can't for the life of me get any ROM or firmware to boot. It either doesn't go past the "Your device is not trusted" screen or it hangs at the boot animation.
Extra notes: Yes I was on Oreo when I tried to revert, I am currently not on Oreo as I tried to flash a Nougat VIE-AL10 firmware to attempt to get the phone to at least boot to a usable state for the time being, however now it's stuck on a boot animation.
Would appreciate any help,
Cheers.
Update:
I tried to follow this: https://forum.xda-developers.com/showpost.php?p=77161313&postcount=2
But as mentioned above the phone hangs on "Your device is booting now..." after HWOTA copies the Nougat firmware files.
gamr13 said:
Hey everyone,
So, a couple months back I rebranded my EVA-L09 to a VIE-AL10 through the rebrand tool.
A couple weeks back I wanted to revert back to EVA-L09 to go back to Magic Rainbow v4 or v3.
I failed in trying to rebrand it back and ended up where I am now, I have TWRP installed, I can do the dload methods to install whatever, but I can't for the life of me get any ROM or firmware to boot. It either doesn't go past the "Your device is not trusted" screen or it hangs at the boot animation.
Extra notes: Yes I was on Oreo when I tried to revert, I am currently not on Oreo as I tried to flash a Nougat VIE-AL10 firmware to attempt to get the phone to at least boot to a usable state for the time being, however now it's stuck on a boot animation.
Would appreciate any help,
Cheers.
Click to expand...
Click to collapse
EVA is P9, VIE is P9 Plus
Don't mix firmwares, you wll (no wonder if you really mixed), brick the phone
One procedure is for P9 = EVA (and this is P9 portal here):
rebranding from EVA L09/L19 to EVA AL00c00b535 and back
https://forum.xda-developers.com/p9-plus/development/rebrand-update-tool-hwota7-p9-plus-vie-t3843930
The other is for P9 Plus = VIE (different phone, eg bigger display)
rebranding from VIE L09/L29 to VIE AL00c00b535 and back
https://forum.xda-developers.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
zgfg said:
EVA is P9, VIE is P9 Plus
Don't mix firmwares, you wll (no wonder if you really mixed), brick the phone
One procedure is for P9 = EVA (and this is P9 portal here):
rebranding from EVA L09/L19 to EVA AL00c00b535 and back
https://forum.xda-developers.com/p9-plus/development/rebrand-update-tool-hwota7-p9-plus-vie-t3843930
The other is for P9 Plus = VIE (different phone, eg bigger display)
rebranding from VIE L09/L29 to VIE AL00c00b535 and back
https://forum.xda-developers.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
Click to expand...
Click to collapse
I was reading through the first link there, as mentioned in the second post I made in here. After following the steps one-by-one the device is stuck at "Your device is booting now..."
gamr13 said:
I was reading through the first link there, as mentioned in the second post I made in here. After following the steps one-by-one the device is stuck at "Your device is booting now..."
Click to expand...
Click to collapse
Be more specific, confirm
- Your phone is P9 or P9 Plus?
If P9, was it L09 (single SIM) or L19 (dual SIM)
- On exactly which Chinese Oreo have you been (cannot be VIE, you must well know what you exactly had and what you were flashing), was it EVA -AL00c00 or what and which build number bXX it was
- Did you go to some Open Kirin/AOSP custom ROM or stayed on that stock Chinese ROM?
You first had to come back to Chinese stock Oreo, not downgrading to Nougat directly from Open Kirin / AOSP
- Downgrading consists of several steps, HiSuite to go to Chinese Nougat and then HWOTA7 to rebrand to eg c432 Nougat.
Up to each step did you exactly do when you got stuck in Booting?
-More precisely, if you downgraded by HiSuite to AL10c00 Nougat, did it boot successfully (or were you here stuck at booting)?
If that step was successful, which (full build name and number) you were flashing by HWOTA7 to rebrand to from the Chinese Nougat?
-Have you tried to switch off and boot again?
Have you tried booting to Recovery and do Factory reset and Wipe Cache and Internal mem and then tried to teboot?
zgfg said:
Be more specific, confirm
- Your phone is P9 or P9 Plus?
If P9, was it L09 (single SIM) or L19 (dual SIM)
- On exactly which Chinese Oreo have you been (cannot be VIE, you must well know what you exactly had and what you were flashing), was it EVA -AL00c00 or what and which build number bXX it was
- Did you go to some Open Kirin/AOSP custom ROM or stayed on that stock Chinese ROM?
You first had to come back to Chinese stock Oreo, not downgrading to Nougat directly from Open Kirin / AOSP
- Downgrading consists of several steps, HiSuite to go to Chinese Nougat and then HWOTA7 to rebrand to eg c432 Nougat.
Up to each step did you exactly do when you got stuck in Booting?
-More precisely, if you downgraded by HiSuite to AL10c00 Nougat, did it boot successfully (or were you here stuck at booting)?
If that step was successful, which (full build name and number) you were flashing by HWOTA7 to rebrand to from the Chinese Nougat?
-Have you tried to switch off and boot again?
Have you tried booting to Recovery and do Factory reset and Wipe Cache and Internal mem and then tried to teboot?
Click to expand...
Click to collapse
Sure,
EVA-L09 is a regular P9. Not a P9 Plus.
I never honestly checked which Oreo firmware I was on. I downloaded the VIE-AL10C00B535 (8.0.0.535) firmware and used that.
Yes, at one point I did go to the OpenKirin AOSP ROMs. However, I was able to do the volume + & - + Power to return to Nougat and then re-flash Oreo. After this I stayed on the EMUI 8.0 firmware.
I did not use HiSuite as it never worked for me. It would always just tell me to go to a service center.
I did not use HiSuite. When I returned to EMUI 5.0.1 from eRecovery (?) Restoring over WiFi on the actual phone it booted fine and I then upgraded again to the Oreo firmware.
Yes, I have tried rebooting.
Yes, I have tried a factory reset.
When I tried to revert from a VIE-AL10 rebrand, my phone ended up getting stuck between an AL10 and an EVA-L09. Meaning that I can use the EVA-L09 TWRP but not an EVA-L09 compatible firmware or ROM. I can only boot AL10 firmwares or ROMs however they hang at the boot animation.
gamr13 said:
Sure,
EVA-L09 is a regular P9. Not a P9 Plus.
I never honestly checked which Oreo firmware I was on. I downloaded the VIE-AL10C00B535 (8.0.0.535) firmware and used that.
Yes, at one point I did go to the OpenKirin AOSP ROMs. However, I was able to do the volume + & - + Power to return to Nougat and then re-flash Oreo. After this I stayed on the EMUI 8.0 firmware.
I did not use HiSuite as it never worked for me. It would always just tell me to go to a service center.
I did not use HiSuite. When I returned to EMUI 5.0.1 from eRecovery (?) Restoring over WiFi on the actual phone it booted fine and I then upgraded again to the Oreo firmware.
Yes, I have tried rebooting.
Yes, I have tried a factory reset.
When I tried to revert from a VIE-AL10 rebrand, my phone ended up getting stuck between an AL10 and an EVA-L09. Meaning that I can use the EVA-L09 TWRP but not an EVA-L09 compatible firmware or ROM. I can only boot AL10 firmwares or ROMs however they hang at the boot animation.
Click to expand...
Click to collapse
>> I downloaded the VIE-AL10C00B535 (8.0.0.535) firmware and used that.
In yout previous post:
>> I tried to follow this: https://forum.xda-developers.com/sho...13&postcount=2
Guide you cited is for rebranding European P9 EVA to Chinese P9 EVA-AL10c00b535 - see attached screenshots from the guide, observe it is everywhere EVA-AL10, not VIE-AL10
Once again, it must be EVA before rebranding and EVA after rebranding.
VIE is different phone (different hardware - bigger display), P9 Plus.
If you didn't care about difference between EVA and VIE, maybe you really downloaded and flashed AL10c00b535 for VIE (P9 Plus) to your EVA (P9)
----
>> Yes, at one point I did go to the OpenKirin AOSP ROMs. However, I was able to do the volume + & - + Power to return to Nougat
This is procedure to boot to Recovery (eRecovery if charging by USB), not to Nougat
----
Details are important, not just when writing posts but really when reading guides and flashing, otherwise bad things can happen ;(
So please, consider again, did you really flash VIE AL10 to your P9 (5,2 inch display)?
(Maybe it worked somehow for AL10b535 because packages for Chinese P9 = EVA and P9 Plus = VIE are similar, but now when returning to Nougat it stays on VIE and doesn't boot)
zgfg said:
>> I downloaded the VIE-AL10C00B535 (8.0.0.535) firmware and used that.
In yout previous post:
>> I tried to follow this: https://forum.xda-developers.com/sho...13&postcount=2
Guide you cited is for rebranding European P9 EVA to Chinese P9 EVA-AL10c00b535 - see attached screenshots from the guide, observe it is everywhere EVA-AL10, not VIE-AL10
Once again, it must be EVA before rebranding and EVA after rebranding.
VIE is different phone (different hardware - bigger display), P9 Plus.
If you didn't care about difference between EVA and VIE, maybe you really downloaded and flashed AL10c00b535 for VIE (P9 Plus) to your EVA (P9)
----
>> Yes, at one point I did go to the OpenKirin AOSP ROMs. However, I was able to do the volume + & - + Power to return to Nougat
This is procedure to boot to Recovery (eRecovery if charging by USB), not to Nougat
----
Details are important, not just when writing posts but really when reading guides and flashing, otherwise bad things can happen ;(
So please, consider again, did you really flash VIE AL10 to your P9 (5,2 inch display)?
(Maybe it worked somehow for AL10b535 because packages for Chinese P9 = EVA and P9 Plus = VIE are similar, but now when returning to Nougat it stays on VIE and doesn't boot)
Click to expand...
Click to collapse
I honestly can't remember how I did it now, it's been a while, but it did go through successfully, and it was working fine after applying the patch.
But yeah, as of now all I can use is fastboot and TWRP. That's all. I've tried flashing EVA-L09 firmware, it doesn't boot. I've flashed AL10 firmware and it gets to a boot animation, but no further than that.
gamr13 said:
I honestly can't remember how I did it now, it's been a while, but it did go through successfully, and it was working fine after applying the patch.
But yeah, as of now all I can use is fastboot and TWRP. That's all. I've tried flashing EVA-L09 firmware, it doesn't boot. I've flashed AL10 firmware and it gets to a boot animation, but no further than that.
Click to expand...
Click to collapse
Boot to Fastboot:
- connect by USB to PC and boot by: press and keep pressing Vol-, then Pow
Ececute from the PC side and copy/paste back your results (is Bootloader still unlocked, what the phone thinks it is current model, cust, build number)
Code:
fastboot oem get-bootinfo
PAUSE
fastboot oem get-product-model
PAUSE
fastboot getvar vendorcountry
PAUSE
fastboot oem get-build-number
PAUSE
fastboot oem oeminforead-SYSTEM_VERSION
@gamr13 Please enter the shown commands by @zgfg in Fastboot mode and tell us the result.
There is not much hope to restore your device after all that you have done wrong → but if you try, what we recommend, we may can recover it.
I can confirm: EVA-L09 is not the same device as VIE-L09 → you can not rebrand EVA-L09 to VIE-AL10, and it is not possible to rebrand VIE-L09 to EVA-AL10 - That causes a lot of problems and you should not be surprised if your device does not boot again.
If your original device was an EVA-L09 you can rebrand to all EVA models, but not to VIE models - That's why there are two threads - one for P9 and the other for P9 Plus.
If you flash oeminfos and related Firmware → it must match with your device!
But if you think, you can flash whatever you like, then your device get "bricked". And here we are now.
BTW: Rebranding back to your originally model can not be done with HWOTA7 - as long the device is on Android 8 ! First a downgrade from Chinese Brand Oreo to Chinese Brand Nougat is required → after this step it is possible to use hwota7 again to rebrand. I have written all the steps in separate Posts after the main Thread.
First we need this Fastboot mode information, then we can see in which status, on which firmware and which oeminfo your device is currently.
Then it's time to flash exactly this firmware with the correct method → for this step, wait for instructions from us.
Only when the device works again, it is possible to downgrade with the correct method and return to the original model, or whatever.
As long as the device is in a "brick", nothing works, since the "brick" must first be resolved.
If it is a "semi brick", a "hard brick" can happen as well, after that the device will be dead and without any function → It teaches you to be careful with flashing and get all the information before you flash anything.
We've also had other issues caused by users doing wrong actions - not knowing what they're actually doing. But both cases were solved successfully - which was not easy:https://forum.xda-developers.com/p9/help/huawei-p9-potentally-bricked-t3841197/
Hey guys,
I've attached a screenshot below which contains all the commands and what I got from them below.
Note about the get-build-number, that was the most recent firmware I tried to flash out of literally 10 other firmwares I tried.
I appreciate everything you guys are trying to do to help me fix this problem. I'm currently trying to survive with a Galaxy S3 Mini, and it's not going well in the slightest.
Cheers.
EDIT: Just as a note, which may be obvious from the screenshots to you or not, the partitions are like Nougat, meaning I do not flash the recovery to ramdisk.
gamr13 said:
Hey guys,
I've attached a screenshot below which contains all the commands and what I got from them below.
Note about the get-build-number, that was the most recent firmware I tried to flash out of literally 10 other firmwares I tried.
I appreciate everything you guys are trying to do to help me fix this problem. I'm currently trying to survive with a Galaxy S3 Mini, and it's not going well in the slightest.
Cheers.
EDIT: Just as a note, which may be obvious from the screenshots to you or not, the partitions are like Nougat, meaning I do not flash the recovery to ramdisk.
Click to expand...
Click to collapse
Looks promissing
It says EVA, not VIE - ok
Somehow you are on c900b182 which means MM (not Nougat) - did you rollback to MM?
In Fastboot screen, does it show in red, at the bottom, both Phone (=Bootloader) and FRP Unlocked?
zgfg said:
Looks promissing
It says EVA, not VIE - ok
Somehow you are on c900b182 which means MM (not Nougat) - did you rollback to MM?
In Fastboot screen, does it show in red, at the bottom, both Phone (=Bootloader) and FRP Unlocked?
Click to expand...
Click to collapse
Yes, I tried to flash MM as well.
In fastboot mode it only shows PHONE Unlocked.
gamr13 said:
Yes, I tried to flash MM as well.
In fastboot mode it only shows PHONE Unlocked.
Click to expand...
Click to collapse
Why didn't you wait, you attempted to rollback?
Now Bootloader is unlocked but FRP is locked (and you cannot boot to System to unlock OEM=FRP)
It can block you fir further flashing ;-(
Do you want to go to c432, is it L09 (Single SIM) or L19 (Dual SIM)?
zgfg said:
Why didn't you wait, you attempted to rollback?
Now Bootloader is unlocked but FRP is locked (and you cannot boot to System to unlock OEM=FRP)
It can block you fir further flashing ;-(
Do you want to go to c432, is it L09 (Single SIM) or L19 (Dual SIM)?
Click to expand...
Click to collapse
This was around a week ago, and the FRP lock thing went away when I did the rebrand - as it's supposed to
But yeah, I can't boot the system.
It's the single SIM EVA-L09.
gamr13 said:
This was around a week ago, and the FRP lock thing went away when I did the rebrand - as it's supposed to
But yeah, I can't boot the system.
It's the single SIM EVA-L09.
Click to expand...
Click to collapse
Procedure for rebranding from c900b182 to c432 is here:
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
Once on c432b182 you should receive OTAs to get back to Nougat.
However, procedure requires flashing OEMIFO, which most likely will be forbidden to you because your FRP is locked and you cannot boot to Systen to unlock OEM.
Which means serious brick
In that case you can try with DC Unlock (sorry, I don't know a better method), it will cost you 15 EUR (probably) and you must ask them for on-line help if needed
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
zgfg said:
Procedure for rebranding from c900b182 to c432 is here:
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
Once on c432b182 you should receive OTAs to get back to Nougat.
However, procedure requires flashing OEMIFO, which most likely will be forbidden to you because your FRP is locked and you cannot boot to Systen to unlock OEM.
Which means serious brick
In that case you can try with DC Unlock (sorry, I don't know a better method), it will cost you 15 EUR (probably) and you must ask them for on-line help if needed
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
Click to expand...
Click to collapse
I'll follow the first link carefully and report back, thanks!
gamr13 said:
I'll follow the first link carefully and report back, thanks!
Click to expand...
Click to collapse
Try but you most likely you will need second link
Here was another user who also had to use DC Unlocker, take a look into the thread (posts #6-#11), in the last post he described how it was resolved for him by DC Unlocker
https://forum.xda-developers.com/p9/help/bought-phone-ebay-registration-wizard-t3840803
zgfg said:
Try but you most likely you will need second link
Here was another user who also had to use DC Unlocker, take a look into the thread (posts #6-#11), in the last post he described how it was resolved for him by DC Unlocker
https://forum.xda-developers.com/p9/help/bought-phone-ebay-registration-wizard-t3840803
Click to expand...
Click to collapse
I used DC Unlocker before to get my bootloader unlock key.
gamr13 said:
I used DC Unlocker before to get my bootloader unlock key.
Click to expand...
Click to collapse
I was not writing you about getting the code but to use DC Unlocker to unlock FRP ( carefully read the story, posts #6 till #11, I gave you in the previous post)
Because their tool can unlock both FRP and Bootloader, but it costs more than just getting the Bootloader code
Personally I didn't use their tool (never bricked the phone or so to need it), and cannot help you about the tool further

can't unlock bootloader or frp

Hi guys
I have rebrand my eva-l09 by chinese oreo firmware, using HWOTA7, and after starting up, all google service are missing, abd cannot intall it correctly, i trying all GMSInSTALL apk but nothing happen.
I tried to unlock bootloader via fastboot, a message showing up on adb command (unlock frp necessary...), can't enable OEM UNLOCK, always stay on grey.
Nothing is fine for me on this chinese firmware
Model : EVA-L09
BUILD NUMBER : System 8.0.0.046(0cs6)
EMUI VERSION : 8.0.0
ANDROID VERSION : 8.0.0
ANY SOLUTION TO INSTALL C432B504?
rowland.phoen1x said:
Hi guys
I have rebrand my eva-l09 by chinese oreo firmware, using HWOTA7, and after starting up, all google service are missing, abd cannot intall it correctly, i trying all GMSInSTALL apk but nothing happen.
I tried to unlock bootloader via fastboot, a message showing up on adb command (unlock frp necessary...), can't enable OEM UNLOCK, always stay on grey.
Nothing is fine for me on this chinese firmware
Model : EVA-L09
BUILD NUMBER : System 8.0.0.046(0cs6)
EMUI VERSION : 8.0.0
ANDROID VERSION : 8.0.0
ANY SOLUTION TO INSTALL C432B504?
Click to expand...
Click to collapse
You say that you followed HWOTA7 instructions - did you really
1) Your screenshot shows model L09.
OP post #2 requores that you must rebrand (change location) from L09 (or L19, L29) to AL10.
You didn't rebrand, or it failed (how, why)?!
2) Your screenshot shows build number 8.0.0.046(OCS6).
Never seen any firmware like that.
HWOTA7, post #2, clearly describes that you must flash (after rebranding to AL10 c00), first b399sp17, and after b540.
Your build number is completely different?!
What you have is not result by following HWOTA7 instructions.
If you followed HWOTA7, you would have:
1) AL10 c00 b540 (not L09 b046 or what)
2) OEM/FRM would be permanently unlocked, with no OEM Loxk/Unlock option in Developers menu (not just grayed out)
3) You would have Playstore services preinstalled, you would just need to install Playstore apk
HWOTA7 OP post #3 describes how to rollback from (properly installed!!) AL10 c00 b540 Chinese Oreo back to Nougat (eg to L08 c432 b504)
But you don't have AL10 c00 b540, but instead something totally strange/wrong - I doubt that given eRecovery procedure will work for you.
You can try with HuRupdater (sorry, I never used and needed to use HuRupdater)
https://forum.xda-developers.com/ho...ash-official-firmware-recovery-t3769279/page1
Or, you can ask for a paid help from DC-Phoenix or Ministry of solutions:
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
https://ministryofsolutions.com/paid-services
zgfg said:
You say that you followed HWOTA7 instructions - did you really
1) Your screenshot shows model L09.
OP post #2 requores that you must rebrand (change location) from L09 (or L19, L29) to AL10.
You didn't rebrand, or it failed (how, why)?!
2) Your screenshot shows build number 8.0.0.046(OCS6).
Never seen any firmware like that.
HWOTA7, post #2, clearly describes that you must flash (after rebranding to AL10 c00), first b399sp17, and after b540.
Your build number is completely different?!
What you have is not result by following HWOTA7 instructions.
If you followed HWOTA7, you would have:
1) AL10 c00 b540 (not L09 b046 or what)
2) OEM/FRM would be permanently unlocked, with no OEM Loxk/Unlock option in Developers menu (not just grayed out)
3) You would have Playstore services preinstalled, you would just need to install Playstore apk
HWOTA7 OP post #3 describes how to rollback from (properly installed!!) AL10 c00 b540 Chinese Oreo back to Nougat (eg to L08 c432 b504)
But you don't have AL10 c00 b540, but instead something totally strange/wrong - I doubt that given eRecovery procedure will work for you.
You can try with HuRupdater (sorry, I never used and needed to use HuRupdater)
https://forum.xda-developers.com/ho...ash-official-firmware-recovery-t3769279/page1
Or, you can ask for a paid help from DC-Phoenix or Ministry of solutions:
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
https://ministryofsolutions.com/paid-services
Click to expand...
Click to collapse
Im using HWOTA7, but i change update files by anothore one i have downloaded from web, i work for give you the link of firmware used.
Any solution for my big issue please SIR
rowland.phoen1x said:
Im using HWOTA7, but i change update files by anothore one i have downloaded from web, i work for give you the link of firmware used.
Any solution for my big issue please SIR
Click to expand...
Click to collapse
Sorry, really cannot help you then.
Unfortunately, since you didn't follow the guide but flashed some other firmware instead (you thought 'better' or what), you are in a specific situation, on your own, and only you should know or find how to deal with the phone and that Oreo firmware
As suggested in the previous answer, you may try with HuRupdater, but IMO, instead of further improvising (HuRupdater is very powerful but you can brick the phone), consider paying 15-20 Euros for DC-Phoenix or Ministry of solutions to safely downgrade to Nougat
After that, if you want Oreo, please follow the HWOTA7 guide carefully and in every detail (like others who now happily use the Oreo) - you will have stable Oreo AL10 c00 b540, debloated, fully working and with less battery consumption than Nougat
Also, rooted, passing SafetyNet, with fully working GApps, and ready for Open Kirin Treble custom ROMs (maybe they will work with your Oreo, too, but cannot tell you)
And if you would ever want to go back to Nougat, you would have a proven roll-back guide as in the OP post #3
zgfg said:
Sorry, really cannot help you then.
Unfortunately, since you didn't follow the guide but flashed some other firmware instead (you thought 'better' or what), you are in a specific situation, on your own, and only you should know or find how to deal with the phone and that Oreo firmware
As suggested in the previous answer, you may try with HuRupdater, but IMO, instead of further improvising (HuRupdater is very powerful but you can brick the phone), consider paying 15-20 Euros for DC-Phoenix or Ministry of solutions to safely downgrade to Nougat
After that, if you want Oreo, please follow the HWOTA7 guide carefully and in every detail (like others who now happily use the Oreo) - you will have stable Oreo AL10 c00 b540, debloated, fully working and with less battery consumption than Nougat
Also, rooted, passing SafetyNet, with fully working GApps, and ready for Open Kirin Treble custom ROMs (maybe they will work with your Oreo, too, but cannot tell you)
And if you would ever want to go back to Nougat, you would have a proven roll-back guide as in the OP post #3
Click to expand...
Click to collapse
Foud me a solution plz sir
rowland.phoen1x
Use HCU for FRP unlock
Unlock bootloader , flash twrp to erecovery and change oeminfo (better to EVA-DL)
Tnen flash via HuRupdater B540 chinese firmware
Thats do if you know how )
rambik33 said:
rowland.phoen1x
Use HCU for FRP unlock
Unlock bootloader , flash twrp to erecovery and change oeminfo (better to EVA-DL)
Tnen flash via HuRupdater B540 chinese firmware
Thats do if you know how )
Click to expand...
Click to collapse
any method without a Box ?
I have the same issue, this is how i fix it...
rowland.phoen1x said:
Hi guys
I have rebrand my eva-l09 by chinese oreo firmware, using HWOTA7, and after starting up, all google service are missing, abd cannot intall it correctly, i trying all GMSInSTALL apk but nothing happen.
I tried to unlock bootloader via fastboot, a message showing up on adb command (unlock frp necessary...), can't enable OEM UNLOCK, always stay on grey.
Nothing is fine for me on this chinese firmware
Model : EVA-L09
BUILD NUMBER : System 8.0.0.046(0cs6)
EMUI VERSION : 8.0.0
ANDROID VERSION : 8.0.0
ANY SOLUTION TO INSTALL C432B504?
Click to expand...
Click to collapse
Maybe I can help you...
I had the same issue just like you, even I read this post before I fix my phone.
First of all, the bootloader says the FRP-Locked, OEM Lock(or whatever says, i can't remember)-Unlocked.
On the Developer Settings the Oem Unlock option was greyed out.
Just like you.
So, reading this post [GUIDE] Debranding to C432 and updating to B361 (Nougat) for EVA-L09 i had a hunch...
What did I do to have my phone back?
1. My phone had the C432 oeminfo, so, I downloaded the dload-huawei-p9-eval09-eva-b136.zip (L09C432B136) in this post. Stock ROM dload file - P9 EVA-L09 B136
2. Copy the extracted dload folder to the external microSD card.
3. Now open the dialer app and enter *#*#2846579#*#* to open the project menu
4. Go to Software Upgrade > SDCard upgrade and confirm the update installation.
5. After the update, maybe shows an error at the final, let it be.
6. The phone restarts and boots with the L09C432B136, Android 6.0, and if you check the Developer options, the OEM unlock option is enabled. You can now lock or unlock your bootloader.
7. I need to update to the latest build and if i tried to check for an update, it says there is none.
8. I downloaded this firmware Download Huawei P9 B182 Marshmallow Update [Europe] I repeat steps 2-5, lock the bootloader, and search for an update... and update after update, I'm on L09C432B504 (Nougat)
Hope to help you...
Sorry for my bad english, I have no one to practice with...

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