yashsingh1/xdaforums huggingface dataset:
[Huawei P9 Questions & Answers] zgfg:
For the moment I have reverted to stock b386 and OTA upgraded to b391.

Tonight I plan to try BlueWei....

Thanks for your instructions on reverting to stock - few comments

1) Immediately upon flashing FullOTA-MF-PV b386 through TWRP, I got notification for b391.

Nevertheless, I followed your advice and DLOAD-ed b386 before letting the OTA to b391

2) When I upgraded to b391 and wanted to flash TWRP, I realized again the issue with Bootloader locked but OEM Unlocking grayed out.

I had to rollback to b300->b182, and let it OTA upgrade b383->b386->b391

Hece now I have Bootloader and FRP unlocked, TWRP 3.1.1-0 installed, hard-reset b391 and I shortly played with Motion Camera....
[Huawei P9 Questions & Answers] berrar:
thanks

next step working good 100%
[Huawei P9 Questions & Answers] kukubau:
Thanks.

Were you able to install B391? If yes, how?
[Huawei P9 Questions & Answers] Tecalote:
I flashed on my Test P9 first b386 FullOTA-MF-PV with TWRP (exactly steps see my Thread Point 4) and Links in Point 3) ): https://xdaforums.com/p9/development/rom-huawei-p9-magic-rainbow-t3601064

After flashing both zips its necessary to reboot Recovery with TWRP and from Stock Recovery (which is flashed automatically with this method) you must make Wipe Cache and Factoryreset.

After short setup I got OTA to b390.

On b390 I opened settings, advanced settings, backup and reset - and I did a Factoryreset from settings with wipe of internal storage.

Then I got OTA to b391
[Huawei P9 Questions & Answers] silentscream0:
THANK YOU For this you helped fixed my phone! :highfive::highfive::highfive:
[Huawei P9 Questions & Answers] kukubau:
Do you own a L09 or a L19 dual-sim?
[Huawei P9 Questions & Answers] zgfg:
I was following the same procedure, from [MENTION=6870018]Tecalote[/MENTION] two weeks ago, when I wanted to upgrade from rooted L09 c432 b386 (actually [MENTION=6870018]Tecalote[/MENTION]'s MagicRainbow) to b391.

However, I got directly OTA to b391, not over b390.

Btw, I also got a problem that I realized only upon upgrading to b391 (it was probably present already upon restoring b386), Bootloader was locked but with OEM Unlocking grayed-out and in Off position.

I rolled back to b182, and let it OTA upgrade again over b383 and b386 to b391.

I always received subsequent OTA immediately upon rebooting after the previous step
[Huawei P9 Questions & Answers] kukubau:
L09 or L19?

I assume all that have had received the B390 and B391 OTA updates have the L09 phone.

Question answered.
[Huawei P9 Questions & Answers] Tecalote:
I own EVA-L09, but steps I wrote can be done also for L19. In my post the Link to my Thread Point 3) contains also the Links to the L19 b386 FullOTA-MF-PV
[Huawei P9 Questions & Answers] zgfg:
As I stated above "L09 c432 b386" so single SIM L09.

But again, I never received b390 but two times directly b391 from b386

Btw, two people (Holland, UK) with L09 claim they got OTA to b393

https://xdaforums.com/p9/how-to/eva-l09c432b390-update-t3641669/page17

I've tried manually checking the System Update, through Huawei ID and through HISuite. It always says I have the latest build ( ok, I do have TWRP but still)

Also, FirmwareFinder declares b393/b394 as Not Approved, hence it's strange if they got OTA b393

Edit: People on Spanish Forum also claim OTA L09c432b393

http://www.htcmania.com/showthread.php?p=27527724
[Huawei P9 Questions & Answers] kukubau:
Doesn't work for L19, the OTA update part, beyond B388.

---------- Post added at 05:58 AM ---------- Previous post was at 05:18 AM ----------

Doesn't work for L19, so I'll have to wait.
[Huawei P9 Questions & Answers] Tecalote:
Of course OTA cannot come before official rollout.

I don't know when rollout is starting for L19.
[Huawei P9 Questions & Answers] Atarii:
I've added a nocheck L19 recovery image to the thread this morning: https://xdaforums.com/p9/development/eva-nocheck-recovery-flash-unapproved-t3705125 so if you have a unlocked bootloader, you can now flash FullOTA-MF OTAs too
[Huawei P9 Questions & Answers] Tecalote:
That's amazing - nocheck recovery for L09 and L19

Thank you very much :good:
[Huawei P9 Questions & Answers] JordTheFraud:
I got to stage 6, and when I rebooted my phone got stuck in a bootloop and is no longer recognized by the TWRP so i literally can't do anything with it :(. - any suggestions?
[Huawei P9 Questions & Answers] jurijcorn:
None of the methods work for me

Hi

I came here because i tried to install miui on my P9 via trwp , somehow it wasnt mountable and after searching the internet i found the solution was to change the filetype.

Sadly i forgot that this would delete my backup, which happened and the miui still wasnt mountable.

I tried your method but after a few miliseconds of the forced update it gets an error and stops.

Or lets say i tried your method while being in trwp recovery mode because otherwise no devices are being detected by adb tool.

i tried to install a p9 stock rom but i cant even mount that one, somehow nothing works.

I seriously dont know what to do anymore.
[Huawei P9 Questions & Answers] chesheggmun:
hey!

i know this threads a little old now but you seem to have the most information on this issue, tried to follow your steps to the T but got stuck at step 7, ive uploaded the rollback UPDATE.APP however now i seem to be stuck on the " your device is booting now" page. im not sure why but i cant get into force recovery even though ive been trying with this all day.

im new to this, ive signed up literally to fix this issue so im not sure if i have to start my own thread or something ? but if you could help at all id be eternally grateful :D:D
[Huawei P9 Questions & Answers] kukubau:
Any progress?

---------- Post added at 09:07 AM ---------- Previous post was at 09:05 AM ----------

You need to flash the recovery.img file to both recovery partitions. TWRP is of no use here, only in extreme situations when you need to repair the file system.

---------- Post added at 09:09 AM ---------- Previous post was at 09:07 AM ----------

Did you flash system.img, boot.img, recovery.img etc. for your phone type using fastboot?

---------- Post added at 09:11 AM ---------- Previous post was at 09:09 AM ----------

What phone do you have, type and region? Did you use the fw & rollback files for your phone?
[Huawei P9 Questions & Answers] chesheggmun:
Yeah, I flashed them in fastboot, im beginning to think there might be an issue with my dload folder as nothing seems to be working in there. is there any way to check this ? i was able to see it before with twrp to see if the SD card was reading but since flashing it the touchscreen seems to have stopped responding.
[Huawei P9 Questions & Answers] muxicianjp:
Huawei EVA-L19 no OS

what if phone is on EVA-L19C636? what will be the needed files for restoring the phone, and how to make it in a clean state before flashing roms.?
[Huawei P9 Questions & Answers] silveretaurushn:
Error

i have a Huawei p9 eva-l09c432 hard bricked. I try fix using your way but it's not success. It has error: " Command not allow". Can you help me fix it. Thank you!!
[Huawei P9 Questions & Answers] mdoom:
Hello

I have the same problem,did You find solution?

thx
[Huawei P9 Questions & Answers] zgfg:
When you boot to Fastboot do you see FRP locked and/or Bootloader locked?
[Huawei P9 Questions & Answers] Greger24688:
Hi,

So I have a Huawei P9 EVA-L09

My story is that I once force updated the phone to Oreo. It obviously didnt like and game an "authorization failed" error at every startup and all Hauwei apps got deleted. So I unlocked the phone, reverted back to EMUI 4.1 but that seemed to have been a dead end (EVA-C900B136, C900 means global (I`m in Europe) and B136 is the firmware version which I didnt find anywhere for the global version) as no updates was able to be installed because even when force update was started it gave an error saying system version is wrong, update and try again.

So I downloaded a legit ROM that was on the P9 L09, extracted the ROM, started the phone in fastboot (volume down and inserting the USB cable) and used cmd promt (from the ADB toolkit folder) to install the system, boot, recovery and recovery2.img files.

Rebootesd the phone thinking its all good only to be stuck on the unlocked phone warming screen and "Your device is booting now..." I have tried two different legit L09 ROMs and countless times reflashing boot.img to no avail

Cant really use any step after 6 as because my phone wont load I cant copy any files over onto the microSD card into the dload fodler.

I do however have an OS ROM on my microSD card which when I try to hold down the Volume Up+Volume Down+Power button to open force update, it gives the same; this phone is unlocked option but no list of the 3 things you can do but the same error message and the "Your device is booting..." and is literally stuck on that message even though the Huawei logo does pop up and regardless if I let go or not of the Power button it goes to that screen. Cant turn phone off or do anything with it.

Maybe some genuine person who knows what they are doing properly can help me out what steps I should be taking, and even though I have another phone I still dont want to ruin a perfectly good (hardware wise P9). Can experiment on it hence me doing all this but obviously I wanna try and fix this issue and learn from all this valuable knowledge (I just love learning stuff like this).
[Huawei P9 Questions & Answers] Tecalote:
You bricked your phone several times.

I am not wondering why it doesn't boot to system.

All you can do in this situation is to flash the Full Firmware for EVA-L09 c432 b182 with DC Phoenix Software (one session is about 15 EUR)

You can use the downloaded update.app (extracted from update.zip)

After that DC Phoenix will start your device in Upgrade Mode to repair the broken things.

Then you should be able to boot to the system.

Perhaps a Factoryreset is required between.

The Build Number will be EVA-L09C900b182.

Then you have to do rebrand to cust c432 with flashing the oeminfo.

After that you must flash again the Firmware b182 (with dload) without booting to system between.

Then you are on EVA-L09c432b182 and if SIM is inserted you will receive the updates to Nougat.

I can give you some further Links tomorrow.

And if you decide to go Oreo again, then do it with the right steps from here:

https://xdaforums.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
[Huawei P9 Questions & Answers] Greger24688:
I am unsure as to how one can brick their phone multiple times. I guess have to update the meaning of that word to your phone can fully function properly but no updates can be installed. Not sure. I guess its still a valuable learning experience for me to know how to do things and it is true I should`ve done the Oreo update properly but kinda didnt and it went all downhill from there.

I will try and do what you wrote down tomorrow and will get back to you on the results. Thanks for your reply
[Huawei P9 Questions & Answers] silveretaurushn:
I have not yet found solution. My phone is still hard bricked
[Huawei P9 Questions & Answers] Tecalote:
Question: Is it possible to boot into Fastboot Mode (connected USB and press Vol- together with PowerButton until phone starts to Fastboot Mode)

What is disabled on screen if you are in Fastboot Mode? FRP= (locked or unlocked) and Phone = (locked or unlocked)?

"I am unsure as to how one can brick their phone multiple times"

I meant, you did not just make one mistake :)

1) You should not flash Firmware that doesn't match your device and cust. But you flashed Chinese Oreo Firmware over European Brand..

2) Downgrade Software from Oreo back to Nougat for dload doesn't exist. The only way back to your original Firmware in this case would have been: TWRP for Oreo and flashing correct Firmware for L09 with HuRUpdater with Factoryreset after. This step would have been solved the problem.

3) From this point a Downgrade to Android 6 would have been possible with b300 dload method first and flashing b182 with dload after. (if there would have been any reason for downgrade like OEM Unlock disabled and greyed out)

Yes, you're right, it's a learning process.

Here's the Link for b182:

https://www.carbontesla.com/2016/11/download-huawei-p9-b182-marshmallow-update-europe/

(Unzip it and flash update.app with DC Phoenix - and wait for restore in upgrade mode)

Here's TWRP for P9 for Android 6:

https://www.androidfilehost.com/?fid=457095661767122229

(you need this for flashing oeminfo c432)

Before you flash oeminfo make sure b182 update.app is in dload folder on external SD

Here's oeminfo (EVA-L09C432) :

https://www.androidfilehost.com/?fid=746010030569961266

After flashing oeminfo, disconnect USB and use restart button - but in the moment of black screen press Vol+ and Vol- Button in the middle down until phone begin to apply the EMUI Update.

After this, your phone should be ok again.

---------- Post added at 07:27 AM ---------- Previous post was at 07:24 AM ----------

You mean, it's not possible to power on your phone - no reaction, black screen, no Fastboot Mode, no eRecovery, no Stock Recovery - nothing?
[Huawei P9 Questions & Answers] Greger24688:
Both FRP and PHONE says its unlocked if I enter fastboot using the Vol- with connecting the USB.

The download link is for an L19 oeminfo. And the one you linked after is the same but for L09. Not to question if you know your stuff just curious how that works. Also shouldnt I (or can I) leave it as L19 and potentially make it easier for an Oreo upgrade? I know I might be getting ahead of myself thinking about Oreo before even fixing the phone to work I just wanna know to be fair
[Huawei P9 Questions & Answers] Greger24688:
So I downloaded DC Phoenix. Paid for the app, then selected the UPDATE.APP you gave the link to, started the phone in fastboot mode (Vol-+PwrButton) so everything should have worked... But it didnt. It fails on its first try

"Writing XLOADER partition with file C:\Users\Zoli\Desktop\dcunlocker\dc phoenix\DC_Phoenix_v52\XLOADER.img

XLOADER partition UPDATE ...FAILED"

Then it displays the same message and is stuck on XLOADER and the loading bar keeps loading and loading over and over again without any real progress. Should I not be using Standard mode and try advance and skip XLOADER?

EDIT: Tried to narrow it down to the 4 main .imgs that worked with the cmd window before (Boot,system, recovery and recovery2) but same thing happens regardless of what I try to update. Gives the FAILED error and then gets stuck on the same command to write these partitions.
[Huawei P9 Questions & Answers] Tecalote:
Sorry for your trouble.

And I see I posted wrong Link for TWRP/Android 6.

Let me think about your issue, I am back in half an hour

---------- Post added at 01:56 PM ---------- Previous post was at 01:22 PM ----------

[MENTION=9371346]Greger24688[/MENTION]

When you are in fastboot mode, can you please do following commands (one after the other) and after copy me the result into a text file and upload it here for me.

fastboot oem get-bootinfo
fastboot oem get-product-model
fastboot getvar vendorcountry
fastboot oem get-build-number
fastboot getvar rescue_enter_recovery
fastboot oem oeminforead-SYSTEM_VERSION

If b182 dont work with DC Unlocker, we can try to download Firmware from Support Site (Download Button in DC Phoenix) and search for the right Firmware, which is needed.

But for this the infos are required.
[Huawei P9 Questions & Answers] Greger24688:
get-bootinfo: unlocked

get-product-model: EVA-L09

vendorcountry: ee/gb

get-build-number: EVA-C900B136

getvar rescue_enter_recovery: FAILED (remote: FAIL: verify secure image fail!)

oem oeminforead-SYSTEM_VERSION: FAILED (remote: command not allowed)
[Huawei P9 Questions & Answers] Tecalote:
I would try the update.app (extracted from update.zip) EVA-L09c432b136: https://mega.nz/#!zcchnZiR!OjP6yXFtliK4XDRHLNIAKgxpf0gmhEeksDr_fjja0oY with DC Phoenix.

If it works, you need probably Factoryreset after succesful flashing.

If this not works, then try from DC Support Site (you must logged in DC Phoenix App):https://get-file.org/search#q|EVA-L09_C432|1

Both files for b390 (one is custom file) - if this is succesful - you need the Nougat rebrand Tool to correct oeminfo to c432: https://xdaforums.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
[Huawei P9 Questions & Answers] Greger24688:
Well I have tried to use B136 but same thing is happening...

Image of DC Phoenix: https://imgur.com/a/RUjdsbC

I will try and see if I can contact DC`s support.
[Huawei P9 Questions & Answers] Tecalote:
Okay, let me know. Sometimes it is very difficult to restore the phone. But there should be a possibility. I repair every week one phone and sometimes I need 8 tries until it works.

Edit: [MENTION=9371346]Greger24688[/MENTION]

Even if the Bootloader is shown as unlocked in Fastboot mode, it is sometimes locked anyway. You can try to unlock the Bootloader first, this would be good, because then it should do low-lewel wipe (if Emui Recovery can be called)
[Huawei P9 Questions & Answers] Greger24688:
How would I go about doing that? But the weird part is that when I sued an extractor and extracted all the .img files and then using cmd from some toll`s folder directory I was able to flash system, boot, recovery and recovery2.
[Huawei P9 Questions & Answers] Tecalote:
Yes, that can be. But it does not help, because the P9 can not be repaired that way.

You have access to Fastboot mode. On the display is: "Phone unlocked and FRP unlocked" right? I said, sometimes the Bootloader is locked, even if it is displayed differently.

I would try: fastboot oem unlock YOURCODExxxxxx

Sometimes this works, if it does not work for you - tell me, which messeage the Terminal show.

Have you also tried to flash with DC Phonex b390 (Nougat) from Support Site (two Files: Firmware and Vendor File must be enabled in DC Software checkbox). Its perhaps possible (because you may have still the Bootloader from the higher Android Version and thats why b136 or b182 does not work).

I repaired about 30 phones from the beginning of this year until now. And I know what I am talking about.

Sometimes it is very difficult - but not impossible. As long you can enter Fastboot Mode, there should be a way.
[Huawei P9 Questions & Answers] Greger24688:
So I have tried to unlock it again thorough cmd. But it gave me a FAILED saying fastboot is already unlocked, to quote it exactly it said "FAILED (remote:already fastboot unlocked)"

I will try to download the B390 as I am posting this and will try to use that with DC Phoenix, and I wont leave out anything from the UPDATE.APP as I will try to use the Standard firmware install with the app first.

I believe you and your advice even if it doesnt work as you are obviously (thanks meter) well experienced in this have thorough knowledge so I will listen to anything you say as I know that is the way one can learn/fix their phone
[Huawei P9 Questions & Answers] Greger24688:
So I was told to try Method 2 on DC`s site. Which I did. I have tried it with both B136 and B390, downloading a board file for it and all... But neither of them worked. Both get stuck on the first ever file its trying to write

B136 try:

Erasing nvme partition

ERASE partition nvme ...FAILED

Cannot get FBlock info from device

Activating backdoor: DONE

Erasing nvme partition

Partition nvme erased

Erasing cust partition

Partition cust erased

Erasing misc partition

Partition misc erased

(add the XLOADER.IMG writing lines here but this is the main difference between the two)

B390 try:

Writing XLOADER partition with file XLOADER

XLOADER partition UPDATE ...FAILED

Extracting partition XLOADER...

Preparing file to write...

Writing XLOADER partition with file XLOADER
[Huawei P9 Questions & Answers] Tecalote:
It seems to be difficult to restore your phone...

Whats happened, if you disconnect USB from device and press VOL+ and Power-Button and keep holding the position until phone reboot - release Power Button after Huawei Logo, but keep holding the VOL+ Button for 2 minutes. Is there a black screen, or does the phone automatic reboot?
[Huawei P9 Questions & Answers] Greger24688:
Okay I started in fastboot and I now suddenly said "FRP locked" in green. Also I cant get it to run in fastboot again. Trying the Vol- and Power button but its not working. Also you wouldnt know but my battery in the P9 is absolutely dogshite and basically cant survive (especially not like this on full screen luminosity and all. Also for whatever reason because it keeps trying to boot the CPU is running like crazy too and the phone heats up. And now it got the point where it drains faster than it can recharge. I have been postponing fixing this as I wanted to use it as a mule phone anyway and would`ve only spent money on changing the battery if I managed to fix its software first) so I cant hold down the Vol+ for 2min but when I tried it the first time from fastboot holding down Power and Vol+ it gave the same message "This device cannot be trusted as its unlocked whatnot blabla" but without the 3 options that say "press this for this, wait this long for that and turn off or something"
[Huawei P9 Questions & Answers] zgfg:
For couriosity I've tried these commands both for P9 L09 MR v4 and L19 rebranded to AL10 c100 b528, here are results

C:\adb>fastboot oem get-bootinfo
L09/L19: (bootloader) unlocked

C:\adb>fastboot oem get-product-model
L09: (bootloader) EVA-L09
L19: (bootloader) EVA-AL10

C:\adb>fastboot getvar vendorcountry
L09: vendorcountry: hw/eu
L19: vendorcountry: all/cn

C:\adb>fastboot oem get-build-number
L09: (bootloader) :magicRainbow-4-byTecalote
L19: (bootloader) :EVA-AL10 8.0.0.528(C00)

C:\adb>fastboot oem oeminforead-SYSTEM_VERSION
L09: (bootloader) :EVA-L09C432B397
L19: (bootloader) :EVA-AL10 8.0.0.528(C00)

C:\adb>fastboot getvar rescue_enter_recovery
L09: getvar:rescue_enter_recovery FAILED (remote: FAIL:need all image flashed!)
L19: (bootloader) This is sec phone!!
L19: (bootloader) NOT secboot recovery image!
L19: getvar:rescue_enter_recovery FAILED (remote: FAIL:verify secure image fail!
)

So I'm wondering if the last command is ok
[Huawei P9 Questions & Answers] Tecalote:
I think it would be different with EMUI Stock Recovery and Stock boot.img on Stock Firmware
[Huawei P9 Questions & Answers] holybladder:
You complete legend

Kubukau, I was up till half past twelve this morning and up again at half past six, panicking and trying to fix the phone I'd managed to brick while unrooting it. I must have gone through twenty different messy, badly written, out of date guides with missing details, and I'd genuinely almost given up and resigned myself to buying a new phone when I sat down and tried your clear, thorough and well-written guide - and my phone's back from the dead.

I will hit the thank button, but also please PM me your Paypal address because I'd like to buy you a drink or two - you have saved me so much pain and hassle :D
[Huawei P9 Questions & Answers] holybladder:
Ended up with C900?

Sorry, I'm confused now...I followed all the steps, using the files you provided, but I've just realised that I've ended up on C900 not C432 - and the rollback package says C900 on the filename (I can't tell what versions the others are) - are those definitely the right files?
[Huawei P9 Questions & Answers] AbhishekS26:
Huawei p9 erecovery

Huawei L09C636...please help!
[Huawei P9 Questions & Answers] Spike32:
I followed all the steps in the first page (I can not quote it I don't know why) and now my P9 works again, but its android version is 6.0 and I can't update it. I tried to force the firmware update three times as suggested but it remains always the same. If I search for any update through the system updater it tells to me that the current version is the last one available, that is not true. What I should do?