yashsingh1/xdaforums huggingface dataset:
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
Go to settings /apps / Playstore /storage and delete data and cache.

Reboot your phone.

Install newest Playstore apk from here:

https://www.apkmirror.com/apk/google-inc/google-play-store/google-play-store-14-9-52-release/

Don't open, reboot phone.

Now you can open and it should work.
[Huawei P9 Plus Guides, News, & Discussion] n20661:
Dear Tecalote,

I reverted back to emui from open kirin. Now I am on emui 8 and B537, everything went fine, after eRecovery FR than network patch, face unlock enable ota zip etc... after I installed all google apps separately, they do not work. I can not login anywhere. it says: checking info... then blank screen, exits to main screen.. what is the solution, what went wrong. How can I use them or make them work.?

Thakns a lot in advance...
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Have you checked the post right before yours
[Huawei P9 Plus Guides, News, & Discussion] n20661:
Yes I tried many times but no result. I can't even log in to swift key account Microsoft account.

If nothing works,I go back to openkirin.then worked everything.
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
If you come back from OpenKirin to EMUI it's absolutely required to do an additional Factoryreset from Settings /System /reset... /Factoryreset (with wipe of internal storage)

Otherwise Google Play Services can not work.
[Huawei P9 Plus Guides, News, & Discussion] n20661:
Thanks a lot. In the meanwhile I started the whole procedure from starting point again. Now everything works fine, I am on latest 002 patch B537. I am afraid, this phone is no longer supported, we will see absolutely no updates, patches in the future. when my battery gives up, I will buy another phone, but not from Huawei, I prefer Xiaomi os Nokia, they have long term support from manufacturer 2-3 years.

Currently I have to put my P9 plus on charger almost daily, so the time for change is coming soon. I will give my old P9 plus to my children to listen music or such entertainment. Sorry for that this is still nice phone and would better with support.

Thanks a lot.
[Huawei P9 Plus Guides, News, & Discussion] pjohn23:
Hello, I have successfully rebranded and updated to oreo on 537. i tried factory resetting in settings but it just goes to the TWRP recovery, how do i factory reset in oreo? Thanks.
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Before Factory Resetting you must unroot (uninstall Magisk) and flash back the stock Recovery - otherwise you risk to brick the phone

Besides from Settings and from Project menu, you can do Factory reset also from stock (EMUI) Recovery and also from eRecovery.

What for do you need Factory reset?

If you want to reinstall Oreo, better boot to eRecovery and take Install latest firmware and recovery

If installing Open Kirin, follow their instructions: do not have TWRP, flash their ROM from Fastboot, boot to Recovery and take Factory reset there

If coming back from Open Kirin, Install latest firmware from eRecovery and follow by Factory reset from Recovery
[Huawei P9 Plus Guides, News, & Discussion] pjohn23:
Hello, Thanks for the reply.

I am currently using TWRP mentioned in the 1st post (for backup and restore system) as i am experimenting which huawei apps are safe to debloat and i want a very minimal rom.

I just want to know how to factory reset the rom in case i want to start fresh again :p i don't have experience using eRecovery yet.

EDIT: I am also looking forward to install OpenKirin roms as soon as they have very stable builds for EMUI 8 based firmwares.

Cheers.
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Flashing the Network patch will do pretty useful debloating.

TWRP cannot access Internal memory or Data, hence by TWRP you cannot debloat any app installed in Data (not in System).

If you root by Magisk (OP instructions), you can access all partitions from MiXPlorer

You can search through the thread (Search box top-right) for the previous posts about debloating
[Huawei P9 Plus Guides, News, & Discussion] pjohn23:
I already installed the network patch and as of now i uninstalled some apps like huawei mobile services, phone manager, etc. seems to be fully working still.

I'll search through the thread. thanks for the advice!
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Phone manager and Huawei Mobile Services are 'legal' apps, present also on Nougat c432.

Eg, Phone Manager is useful to manage Launch and Background for apps (although you can access the same also from Settings)
[Huawei P9 Plus Guides, News, & Discussion] pjohn23:
I think its fine without any of them :p currently only have the themes app in my app drawer and im planning to debloat that as well :p

---------- Post added at 09:38 PM ---------- Previous post was at 09:27 PM ----------

Hello, if i may ask again, did u ever get a chance to install v4a in this rom?
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Don't ask later why eg you don't receive notifications in deep sleep ir so:(

V4A requires SELinux submissive mode, you cannot (easily) put this Oreo to submissive.

P9 is very similar to P9 Plus. You can find the corresponding thread about P9 HWOTA7 and AL10c00 Oreo (and many more there about debloating).

Even, they share the same Ramdisk and Kernel (when both were on b535), even [MENTION=6870018]Tecalote[/MENTION] made a single zip for Face Unlock for both P9 and P9 Plus AL10c00

However, there is a guy who ported v4A to an earlier version of Oreo for P9 (maybe b528), there was his thread under P9 ROMs.

Hence it should be the possible also for P9 Plus (you can find more things, discussions, everything for P9 than for P9 Plus because P9 is more widespread)
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Btw, you can search in this thread (and in P9 thread) for JamesDSP - Magisk audio module, pretty useful replacement
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
JamesDSP Audio Manager:

https://xdaforums.com/showpost.php?p=72324847&postcount=1

It's similar like V4A - but original V4A doesn't work on Huawei Oreo because of the missing 64 bit driver.

I wouldn't recommend to experiment with V4A, it end up with Bootloop and you must restore after the system with Huawei eRecovery...
[Huawei P9 Plus Guides, News, & Discussion] pjohn23:
Hello, please help, i tried to use systemless xposed only for it to cause bootloop :p now i restored stock ramdisk and it boots but now root is not present. any way i can remove xposed and restore magisk root?
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
For xposed, they have uninstall zip, flash by TWRP and reboot.

If you saved Ramdisk patched with Magisk, flash it - otherwise you will need to install it again (there is a new v19.2 now)

Btw, in the P9 thread you can find one my older post with a link to the working xposed (not a Magisk module, but directly flashable by TWRP).

However, xposed breaks Safetynet
[Huawei P9 Plus Guides, News, & Discussion] pjohn23:
I flashed xposed uninstaller, then tried to root again but still in boot loop :(
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
If you don't have Nandroid backup from TWRP (unfortunately without Data, but System only should be enough), then you can reinstall stock from eRecovery, then patch NW again (if needed), and flash Magisk
[Huawei P9 Plus Guides, News, & Discussion] n20661:
Hi Guys! I am saying good bye to you all. I will buy a Samsung or xiaomi in june. And leave Huawei ecosystem. It was good to have you, always helpful and nice remote friends. Wish you good luck in this thread. I will keep reading anyway. Thanks a lot!
[Huawei P9 Plus Guides, News, & Discussion] meshoo00oo:
Any news about the network patch 2.6?
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
I am very sorry, but my job is much more exhausting than expected.

I didn't find any time until now.

I can't make any promises at the moment, but I keep it in my mind
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Many things are common to P9 and P9 Plus.

Don't you think that NW patch v2.6 for P9 may work on P9 Plus.

Maybe you can give some hints to somebody with P9 Plus to try to adapt your NW patch v2.6 for ap9 to P9 Plus?
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
Current Version of NW Patch for P9 Plus isn't as much different then version 2.6 for P9 - newer, not yet released NW 2.6 for P9 Plus will fix some small things like "Hide navigation bar"

There's nothing to port from NW Patch for P9, because P9 Plus has on important places completely different settings and P9 Plus has Infrared interface.

P9 Plus doesn't need ncfg in odm but Network controls are configuration is stored on different place.

The settings, which are similar the same, are already included.

I will do the small fixes, soon I get time and then I will skip support for EVA and VIE and say goodbye, cause I haven't any free time for now.

I will see how is doing in the future.

Perhaps my rich uncle from the USA spend me enaugh money, then I wouldn't must do such lot of work and would have time to spend my time for developing Huawei devices ;)
[Huawei P9 Plus Guides, News, & Discussion] Master Arghs:
Help Please..

FASTBOOT QUERY RESULTS

fastboot oem get-bootinfo

(bootloader) unlocked

fastboot getvar vendorcountry

vendorcountry: all/cn

fastboot oem get-build-number

(bootloader) :VIE-C900B103

Huawei P9 Plus

Original Model: VIE-L29

Original Build Number: VIE-L29C636B103

Original Android version: 6.0

Can still access eRecovery but failed in downloading latest firmware and recovery.

Can still install and access TWRP.

Can Still access Fastboot and flash recovery image.

Current issue is STUCK in "Your device is booting now".

Tried to follow the first post but for some reason I was not able to complete it and was just finished Changing the Location to OEM Info VIE-AL10c00 and the upgrade in firmware did not push through and I ended up having a MODEL : VIENNA and VIE-C900B103.

Tried to change it back to Original location but it seems I don't have the original OEMInfo.

Sadly, I don't have a backup of the original firmware and oeminfo.

Tried to flash different firmwares but still stuck in "Your device is booting now". Maybe I'm not flashing the correct firmware? Can somebody provide me the link of a working firmware for my device that I can flash through TWRP please?

I just wanted this phone to work even in stock ROM (Android 6) or if possible in Android 7 or 8 whichever is working.

Any help would be appreciated. Thank you!
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
This method HWOTA7 flashes TWRP for EMUI 5, and then stock Recovery from EMUI 5 (with the so- called no-check modification)

To work, it requires that you start from Android 7 (N) / EMUI 5, because they can't properly work with Android 6 (MM) / EMUI 4

It seems that you started HWOTA7 directly from MM, or how?

---

You also say that you tried to flash various firmwares - did you follow rules, without changing cust/location you must not flash firmware for the other cust, etc

And you say that you (can) flash TWRP and (stock) Recovery.

Again, Recovery must be from the same stock firmware, specially it must be from the same Android/EMUI version (MM, N or O) and from the same cust

Similarly, TWRP must be for the same Androud/EMUI version

----

Unfortunately, from your description it's unclear which firmwares you later flashed, for which model (AL10, L29 or else), for which cust and even which Android/EMUI version

You copied that Bootloader reports VIE-C900B103.

It must be that you attempted to flash c900b103, was it for AL29 model or which?

Did you flash by DLOAD or how?

By the number b103 it should be Android 6 / EMUI 4?

Since c900 was some kind a service cust (b103 must be pretty old, from 2016 or so), it has no OTA updates and probably no eRecovery updates.

---

Things for P9 (EVA) and P9 Plus (VIE) work the same way but I'm from P9 and I don't know availability of tools/resources (TWRP, oeminfo) and firmwares for P9 Plus

Eg, the following post describes rebranding from c900 for P9 - the same procedure must work for P9 plus but you would need TWRP, oeminfo and the FullOTA-MF-PV for P9 Plus (not for P9 as in the post):

https://xdaforums.com/showpost.php?p=72153575&postcount=2

That should unbrick. With a proper SIM card you should receive then OTA upgrades for N - if not, you could again upgrade yourself from MM to N by DLOAD flashing FullOTA-MF-PV build (DLOAD requires firmwares described in Firmware Finder as MF-PV , not just MF

Maybe, it's safer if you consider buying credits and asking DC-Phoenix or Ministry of solutions to unbrick with rebranding and upgrading to Nougat:

https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial

https://ministryofsolutions.com/paid-services

Upon that, you can go by HWOTA7, but from Nougat to AL10c00 Oreo
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Edit:

Actually, if you rebrand to AL29 c185 or c605, then you could use service restore firmwares (by Huawei, for their service shops, even for bricked phones) from:

https://androidhost.ru/search.html

Each of them which has androidhost.ru.zip in the name must work for DLOAD

You must download, unzip, un-arj (if archived) until you reach two folders:

Documentation

Software

In Documentation, you will find a guide (describing DLOAD)

In Software (whole folder may be zipped or archived) there are update*.zip files for DLOAD - they must be used as such, not renamed or unzipped
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Look at this tool, it is from the time of Android 6 and by Changelog it supports VIE L29 c185

https://xdaforums.com/mate-8/development/tool-srk-tool-huawei-t3369797

If so, you should be able to rebrand your L29 c900 b103 to c185

Then, update to Nougat by DLOAD method, by using an android.ru.zip service restore package from my previous response.

At the end, you can go to eRecovery and (re)install latest firmware, followed by Factory reset, to make sure everything is clean

Then you will be ready for HWOTA7 method to upgrade to Oreo
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
[MENTION=8367057]Master Arghs[/MENTION] Any news about the topic?

Have you read and understand what [MENTION=7786725]zgfg[/MENTION] was telling you about?

For the future please read the Thread(s) carefully before you start to flash anything without knowing what you are doing. This can destroy your device irreversible.

So, I need to know what's the actual state if you wish help.
[Huawei P9 Plus Guides, News, & Discussion] Master Arghs:
Yeah you are right, I started HWOTA7 from MM and that was a mistake.

With a lot of reading and research, I tried the following firmwares, VIE-L09C900B335, VIE-AL10c00b399SP20, VIE-L29C636B384,

VIE-L29C636B394, VIE-L29C636B103, both DLOAD & TWRP.

Yes, the B103 is 2016 and Android 6 / EMUI 4, it came with the P9 Plus out of the box and was never updated.

I will try your recommendations and will provide update here. Thank you for you r help.

---------- Post added at 12:36 AM ---------- Previous post was at 12:15 AM ----------

Here are the updates:

I was able to flash a firmware VIE-L09C900B160 / Android 6 / EMUI 4.1 through TWRP and gave some errors but it says successful. I rebooted the system and to my surprise, it booted properly and was able to setup the phone again but it overwritten TWRP. I need to reinstall TWRP using FASTBOOT to have it installed so I can try to flash a different ROM in the future. I backed up in TWRP just in case I need to revert it back to a working ROM again.

I've spent days just to figure it out, reading, researching, etc. to update to Oreo until I came up with stuck in " Your device is booting...". Luckily, I was able to flash a firmware that worked and now I can use the phone.

Now, what I wanted to do is to upgrade the firmware to Nougat then to Oreo. I will appreciate any assistance and direction here as I don't know where to start. Thank you!

Phone Status: Booted and can be used

Model: VIENNA

Build Number: VIE-C900B160

EMUI: EMUI 4.1

Android version: 6.0

Fastboot access: Yes

TWRP access: Yes, can be reinstalled through Fastboot

eRecovery access: Yes
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
As responded to you, with c900 you cannot update to Nougat, you need to rebrand

Have you read my responses in the posts #542 (and #541):

https://xdaforums.com/showpost.php?p=79776273&postcount=542

This is the method it should work to rebrand to rebrand to c185 and to upgrade to Nougat
[Huawei P9 Plus Guides, News, & Discussion] Hello0183828283:
Hello [MENTION=6870018]Tecalote[/MENTION] , Any news about the network patch 2.6? In 2.5 the navigation bar is buggy if i hide the navi bar.
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
Hi, I already answered here:

https://xdaforums.com/showpost.php?p=79725857&postcount=538

Please note, at the moment I am like "light years away from earth"

When I find a Stargate back, I will have time to update the network patch
[Huawei P9 Plus Guides, News, & Discussion] LeMiki:
The TWRP is gone

Hello

I have 535 rom on my phone. I wanted to upgrade to 538 but do not know as there is no TWRP on my phone. How do I reinstall twrp?
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Do you mean b537 (not b538)?

If you 'lost' TWRP, you can always flash it by Fastboot, as described in OP post #2

But do not upgrade with TWRP. You must have stock Recovery and no root, and then upgrade by OTA from Settings, System, System Update or by eRecovery, Install latest firmware and recovery

Please carefully re-read all OP posts
[Huawei P9 Plus Guides, News, & Discussion] Mena_P9_Owner:
Hi, I followed all instructions from flashing the ROM to CN version, upgrade to Oreo, then root via magisk ramdisk patch. Safetynet has passed but Netflix is still not available at the playstore. Is there a fix for this like change fingerprint to VIE-L29 MENA(the original ROM version of my phone)?
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
You can try this Mod:

https://xdaforums.com/showpost.php?p=80002418&postcount=1838

Or you can try original Netflix apk:

https://www.apkmirror.com/apk/netflix-inc/netflix/

Installing one of the apks should solve the issue
[Huawei P9 Plus Guides, News, & Discussion] LeMiki:
Dear zgfg

I wanted to write 537 ;)

So I cant upgrade to 537 from 535 with TWRP flash. When I flashed to 535, I used the disabled ota network patch. If Im right, I cant upgrade with OTA?

Where can I download and how can I install stock recovery? unroot is ok.

If I want to do it with e-Recovery, how can I do it? I've downloaded 537 files, (unnamed it), copied to the dload folder and did the three button method?

thanks for your help!
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Follow the OP posts, there are various resources for VIE:

Enable OTA (enabling System Update):

https://androidfilehost.com/?w=files&flid=290469

Stock Ramdisk from b535:

https://androidfilehost.com/?w=files&flid=284385

You can flash them one after another from TWRP, first as ZIP, second as IMG (to Recovery-Ramdisk), and then reboot to System

Btw, for (updating (Install latest) from eRecovery, you could go with System Update disabled and even with TWRP, but better reinstall original Recovery as above.

It must be described in OP posts how to reinstall/update from eRecovery (you can also find instructions elsewhere on XDA, it's the same for all Huawei phones):

- Switch off, connect to charger

- Boot as to Recovery/TWRP: keep pressing Vol+ and press Pow (but for eRecovery it must be connected to charger)

- From eRecovery, choose (Re)Install latest firmware and Recovery

You may follow with Factory (also from eRecovery), but then you need to prepare backups in advance

At the end, follow OP posts for tweaking b537 (like posts #2, #4)

PS: You can flash Recovery-Ramdisk from Fastboot, like flashing TWRP, just use the proper name of the corresponding *.img file

You can also manually enable System Update from eg MiXPlorer, rename from BAK to APK (root required, reboot upon renaming):

/system/app/HwOUC/HwOUC.bak
[Huawei P9 Plus Guides, News, & Discussion] LeMiki:
Hi!

Thank you for everything. I'm on 537.(not 538;))
[Huawei P9 Plus Guides, News, & Discussion] SonnenTeddy69:
Google Account missing

First of all many thanks for the work [MENTION=6870018]Tecalote[/MENTION]

I have a problem. After updating to Oreo VIE-AL10 8.0.0.537, I can not create a Google Account. This is completely missing in the "Accounts" menu. Can someone help me?
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Did you install TWRP and flash Network zip as from OP post #2
[Huawei P9 Plus Guides, News, & Discussion] SonnenTeddy69:
yes! :(
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
In your shoes, I'd do the following:

- Clear off Display pin/pass

- Sign of from Huawei Cloud (if using)

Connect to charger, Press Reboot,

before confirming press and keep pressing Vol+

It must reboot to eRecovery.

- Take Install latest firmware (b537) again

- Once done, take also Factory reset

Reboot to System.

If using any backup/restore, do not restore GApps.

Install TWRP and flash NW patch.

Do not flash any zip for Playstore, just install Google Play app, you can take it eg from my Mega (not the newest, but anyway)

https://mega.nz/#F!JwkVyRya!Rb7OUE0z3PEpXBRxGOM-vQ

(Do not use my IMGs and ZIPs, they are for P9, not P9 Plus)

Btw, without Magisk, SafetyNet (CTS profile) will fail but it should not prevent you using the Playstore (it only affects paid services).

Although I'm not using Playstore paid services, I root first by Magisk to have clean SafetyNet
[Huawei P9 Plus Guides, News, & Discussion] SonnenTeddy69:
Slowly I do not know how to continue!

Model: unknown

Build: System 8.0.0.046 (0N5G) ???

EMUI + Android 8.0.0

TWRP will not install

Error:

writing "recovery2"

FAILED (remote: partition length get error)

My English is not that good :eek:
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Why are you flashing TWRP to Recovery2 (eRecovery)?!

OP instructions post #2 clearly desrcibe how to flash TWRP, and to Recovery (not Recovery2)
[Huawei P9 Plus Guides, News, & Discussion] Tecalote:
This build number says that you haven't correctly rebranded!

You should have: VIE-AL10 8.0.0.537(C00).

TWRP:

fastboot flash recovery_ramdisk "Name-Of-TWRP".img

I wrote you a PM
[Huawei P9 Plus Guides, News, & Discussion] ctepeotun:
Hello! How to solve the following issue (occurs only on Oreo, not on 6 or 7):

When I play sound in landscape mode (stereo+) and turn off the screen, the sound switches to mono.

I noticed the following: when the phone lock is disabled, this does not happen, apparently this is affected by the lockscreen.

I had to roll back to Nougat because of this...
[Huawei P9 Plus Guides, News, & Discussion] zgfg:
Did you test (with Oreo, before rolling back to Nougat):

- How it behaves with JamesDSP (Magisk module)

- How it behaves after eRecovery Install latest (b537) and Factory reset, i.e., without NW patch and other hacks

I'm asking because I cannot test since I have P9 EVA, nott P9 Plus VIE. Both have this Chinese Oreo, but P9 has no stereo speakers