Database Develop

Can I update a rooted Huawei P9 to Nougat?

As asked in the title, can I update a rooted Huawei P9 with custom recovery to Nougat update?
And if not, what should I do in order to update? Remove root and custom recovery? Factory reset?
Thanks in advance

What the firmware version do you have ??
You can update the phone, but changind the firmware will mean that you'll lost the root.
You can update it, then you can root the phone again ....

EMUI 4.1.1
I also have TWRP custom recovery.. Would that make it riskier to update?
And how should I update? Wait for update to be available through phone or other methods? And what would be the other (easy) methods if I decide not to wait for it to be available through the settings on the phone?
If possible and not a bother, could you link another thread or a guide for this, please?
Thanks for all the help!

What build number do you have? It should be something like L09C432B383.

You can update to Nougat using TWRP but you will lose root and TWRP Recovery will go back to stock recovery. Just download the appropriate Nougat firmware that matches your Cust number (Eg, C900, C432 etc).
You can flash TWRP Recovery again and root your phone after the update.
Note: Nougat supersu.zip file is different from Marshmallows.

Build Number: L09C606B150
Ok, so should I do it directly through the phone? Or Pc?

I found an update to Nougat with the Build Number: C432B322. Should I use this one to update? And should I flash through TWRP? If yes, how should I do it?
Sorry for all the questions, I've never bricked a phone and not ready to do it now...

Gabrielvmwi said:
I found an update to Nougat with the Build Number: C432B322. Should I use this one to update? And should I flash through TWRP? If yes, how should I do it?
Sorry for all the questions, I've never bricked a phone and not ready to do it now...
Click to expand...
Click to collapse
No you have to find a firmware that matches your cust (C606). If you flash this C432B322 you will brick your phone.

jonezie said:
No you have to find a firmware that matches your cust (C606). If you flash this C432B322 you will brick your phone.
Click to expand...
Click to collapse
Thanks! I fortunately waited for the answer before updating hahaha
And I searched for an update with c606 and didn't find one.. how should I proceed with that?

If you really want to get to Nougat and not wait for build releases for your cust C606 then you will need to debrand your phone to C432 cust following this guide:
https://forum.xda-developers.com/p9/how-to/guide-debranding-to-c432-updating-to-t3551523
And do keep in mind doing incremental updates instead of jumps ahead of a build is better to do to avoid compatibility issues from build to build.

Unable to install stock rom Huawei P9

Hello!
I'm currently running on EMUI 4.1.1 (EVA-L09C900B182)
I downloaded the official firmware for P9 from Huawei website, extracted the UPDATE.APP with this tool https://forum.xda-developers.com/showthread.php?t=2433454 so i could get the stock RECOVERY.img.
I placed the UPDATE.APP in a dload folder on the root of my external SDCARD
Rebooted into bootloader, flashed the stock recovery (I had TWRP).
vol+, vol- and power button togheter, it tries to install but fails (software install failed! Incompatibility with current version. Please download the correct update package.)
I tried also with huawei firmware finder app and even if it says the firmware is approved for the installation when i verify with IMEI, it fails after (I tried EVA-L09C900B386).
I tried:
- with the in-app proxy, changing my wifi proxy to localhost:8080 and using the default updater
- downloading the package and manually moving UPDATE.APP in dload on my ext sd card.
What i would like to obtain is a full stock huawei p9 phone, so i could get the official android 7 and latest firmware.
Thanks a lot!

Sorfrost_1 said:
Hello!
I'm currently running on EMUI 4.1.1 (EVA-L09C900B182)
I downloaded the official firmware for P9 from Huawei website, extracted the UPDATE.APP with this tool https://forum.xda-developers.com/showthread.php?t=2433454 so i could get the stock RECOVERY.img.
I placed the UPDATE.APP in a dload folder on the root of my external SDCARD
Rebooted into bootloader, flashed the stock recovery (I had TWRP).
vol+, vol- and power button togheter, it tries to install but fails (software install failed! Incompatibility with current version. Please download the correct update package.)
I tried also with huawei firmware finder app and even if it says the firmware is approved for the installation when i verify with IMEI, it fails after (I tried EVA-L09C900B386).
I tried:
- with the in-app proxy, changing my wifi proxy to localhost:8080 and using the default updater
- downloading the package and manually moving UPDATE.APP in dload on my ext sd card.
What i would like to obtain is a full stock huawei p9 phone, so i could get the official android 7 and latest firmware.
Thanks a lot!
Click to expand...
Click to collapse
Best is to follow this guide and debrand the phone to C432.
https://forum.xda-developers.com/p9/development/c432-oeminfo-flash-twrp-t3384903
Sent from my LON-L29 using XDA Labs

I did something similar and ended up with C432B242 after some update with huawei firmware finder. Now I cant reach B397.. I've tried all the intermediate steps after 242: no luck. It fails during installation. Any specific instruction?

Sorfrost_1 said:
I did something similar and ended up with C432B242 after some update with huawei firmware finder. Now I cant reach B397.. I've tried all the intermediate steps after 242: no luck. It fails during installation. Any specific instruction?
Click to expand...
Click to collapse
U have to downgrade to B182 and then upgrade to B360 FullOTA-MF-PV
When u upgrade to a new Android system u must flash FullOTA-MF-PV
U could try without downgrade first, but u cant upgrade to B397 because its not signed yet by Huawei, B395 ist the latest approved Firmware.
Sent from my LON-L29 using XDA Labs

Mostar088 said:
U have to downgrade to B182 and then upgrade to B360 FullOTA-MF-PV
When u upgrade to a new Android system u must flash FullOTA-MF-PV
U could try without downgrade first, but u cant upgrade to B397 because its not signed yet by Huawei, B395 ist the latest approved Firmware.
Sent from my LON-L29 using XDA Labs
Click to expand...
Click to collapse
From b182 OTAs will lead up to b395.
b397 OTA is expected any day, meanwhile it can be forced (as well as the newer b398) from b395 by using no-check recovery:
https://forum.xda-developers.com/p9/development/eva-nocheck-recovery-flash-unapproved-t3705125

Update:
I reinstalled from b136 => b166 => b182
After that i tried b378 but now my build number is NRD90M test-keys
Will start again from b136 trying something different.

Sorfrost_1 said:
Update:
I reinstalled from b136 => b166 => b182
After that i tried b378 but now my build number is NRD90M test-keys
Will start again from b136 trying something different.
Click to expand...
Click to collapse
U need to choose Download Latest Full Packege in Updater Menu when u go from MM to Nougat.
Sent from my LON-L29 using XDA Labs

Ok i finally solved it. From b136 to b182 with the official update and selecting "Download full package" (<= this is key! )
After that i updated to b360 => b391 with huawei firmware finder
Mostar088 said:
U have to downgrade to B182 and then upgrade to B360 FullOTA-MF-PV
Click to expand...
Click to collapse
What firmware are you guys using and what do you suggest?

Sorfrost_1 said:
Ok i finally solved it. From b136 to b182 with the official update and selecting "Download full package" (<= this is key! )
After that i updated to b360 => b391 with huawei firmware finder
What firmware are you guys using and what do you suggest?
Click to expand...
Click to collapse
I have B395, it's the latest approved Firmware.
Sent from my LON-L29 using XDA Labs

Sorfrost_1 said:
...What firmware are you guys using and what do you suggest?
Click to expand...
Click to collapse
Custom ROM MagicRainbow v3, based on b394/b395, debloated, pre-rooted with Magisk, with integrated Viper4Android, etc
https://forum.xda-developers.com/p9/development/rom-huawei-p9-magicrainbow-v3-t3722457

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

Canadian p20pro L04 to L29 questions after rebranding,updating and rooting.

Hi Everyone,
Ive rebranded my canadian p20pro to L29 using these guide successfully
To root
https://forum.xda-developers.com/hu...ide-getting-started-unlock-twrp-root-t3806180
To debrand
https://forum.xda-developers.com/hu...ide-getting-started-unlock-twrp-root-t3806180
To install firmware updates
https://forum.xda-developers.com/honor-9/development/tool-flash-official-firmware-recovery-t3769279
I had some questions hopefully can be resolved.
When there is an update in firmware finder can install it directly or it has to be through twrp or erecovery?
Am i able to update magisk manager without problems?
anyone got viper4anroid working or made audio experience better for this phone?
i understand that every time I update firmware ill loose root. Is there a way to not loose it?
Will update firmware make me loose all my apps and settings?
does downgrading firmware causing bricking?

Hello!
I've done the same thing. I didn't install TWRP so I can update via OTA. Today i've got 8.1.0.131 (C432) update. If you use TWRP to update firmware it will wipe your data. Magisk can be updated without problem. Viper will not work. No support for x64 audio drivers.

Go back from l29 to l04
How do i go back to l04 from l29 i was l04 at the start

When a new update is available you can just download it and flash it through hurupdater in twrp.
After updating just flash magisk again and you will retain root (also remember to reflash twrp/have the recovery.img file in the same directory when updating through hurupdater).
You will not loose any data or settings (unless the new firmware explicitly tells otherwise).

mrabcx said:
When a new update is available you can just download it and flash it through hurupdater in twrp.
After updating just flash magisk again and you will retain root (also remember to reflash twrp/have the recovery.img file in the same directory when updating through hurupdater).
You will not loose any data or settings (unless the new firmware explicitly tells otherwise).
Click to expand...
Click to collapse
How do I go back to l04 from l29 I was l04 originaly

Hey do you know how to go back to l04 from l29?

kiazand said:
Hi Everyone,
Ive rebranded my canadian p20pro to L29 using these guide successfully
To root
https://forum.xda-developers.com/hu...ide-getting-started-unlock-twrp-root-t3806180
To debrand
https://forum.xda-developers.com/hu...ide-getting-started-unlock-twrp-root-t3806180
Click to expand...
Click to collapse
Hello Just one question. Did you use the same guide to get root and to debrand or was the same link used by mistake? I am asking because I am doing this to my phone and I am now in the debrand part. will really appreciate your help. thanks

Version downgrade

I have searched everywhere but I didn't find a reply to my question.
A couple of days ago I have updated my phone LLD-L31 to the version 8.0.0.132 through Firmware Finder (it worked for me with proxy method) then I decided to revert back to the previous version 8.0.0.131. So I started reading guides to install a firmware on Huawei/Honor devices, I have downloaded the FullOTA package version 8.0.0.131 with Firmware Finder, placed it in the folder dload on my SDcard and started the intstallation in the project menu (accessible digiting *#*#2846579#*#* in the dialer), it started but suddenly it ended with a message "installation failed".
So my question is: how can i revert to the previous version of the software (or to the out of the box firmware installed on my device)?

karmakey said:
I have searched everywhere but I didn't find a reply to my question.
A couple of days ago I have updated my phone LLD-L31 to the version 8.0.0.132 through Firmware Finder (it worked for me with proxy method) then I decided to revert back to the previous version 8.0.0.131. So I started reading guides to install a firmware on Huawei/Honor devices, I have downloaded the FullOTA package version 8.0.0.131 with Firmware Finder, placed it in the folder dload on my SDcard and started the intstallation in the project menu (accessible digiting *#*#2846579#*#* in the dialer), it started but suddenly it ended with a message "installation failed".
So my question is: how can i revert to the previous version of the software (or to the out of the box firmware installed on my device)?
Click to expand...
Click to collapse
You should have an option to downgrade in the about section/ the update menu of your phone if you did it right.
Otherwise you may need to use the HuRupdater Method.

Fredin_ said:
You should have an option to downgrade in the about section/ the update menu of your phone if you did it right.
Otherwise you may need to use the HuRupdater Method.
Click to expand...
Click to collapse
Thanks for your reply!
I don't have this option, but if I remember well I hadn't it also in the previous version of the firmware.
So i can't install a previous version of the firmware simply downloading it an putting into dload folder of the SDcard?

karmakey said:
Thanks for your reply!
I don't have this option, but if I remember well I hadn't it also in the previous version of the firmware.
So i can't install a previous version of the firmware simply downloading it an putting into dload folder of the SDcard?
Click to expand...
Click to collapse
Can you please specify why do you want to roll back?
Because most people just wanna upgrade to a newer version.Newwr versions will have better stability so it's recommended to keep the latest version unless you have some bugs.
I honestly don't know why the dload method doesn't work, seems that it doesn't work for most people.
I think you'll be able to roll back using HuRupdater. But that'll mean you'll have to unlock bootloader and flash twrp first. Then you can go all stock from there.
Here's a guide to the HuRupdater from @zxz0O0
https://www.google.co.in/amp/s/foru...lash-official-firmware-recovery-t3769279/amp/

Fredin_ said:
Can you please specify why do you want to roll back?
Because most people just wanna upgrade to a newer version.Newwr versions will have better stability so it's recommended to keep the latest version unless you have some bugs.
I honestly don't know why the dload method doesn't work, seems that it doesn't work for most people.
I think you'll be able to roll back using HuRupdater. But that'll mean you'll have to unlock bootloader and flash twrp first. Then you can go all stock from there.
Here's a guide to the HuRupdater from @zxz0O0
https://www.google.co.in/amp/s/foru...lash-official-firmware-recovery-t3769279/amp/
Click to expand...
Click to collapse
After installing the version 132 I asked the technical support through HiCare and they told me that installing firmware with Firmware Finder could void warranty so I decided to revert to the previous firmware and wait for regular OTA by Huawei.

karmakey said:
After installing the version 132 I asked the technical support through HiCare and they told me that installing firmware with Firmware Finder could void warranty so I decided to revert to the previous firmware and wait for regular OTA by Huawei.
Click to expand...
Click to collapse
I'm not sure but I think you are on the latest build for your varient now so you won't be getting any updates untill a next build comes in.
I don't think you'll be able to roll back without the firmwares from firmware finder as you don't have an option to roll back.
The best option now would be to just wait for the next official build(might come soon as a small ota which has security patches) and then check if you are facing any issues installing which you won't as you are not rooted and dosent have an unlocked bootloader. So don't worry ?

Fredin_ said:
I'm not sure but I think you are on the latest build for your varient now so you won't be getting any updates untill a next build comes in.
I don't think you'll be able to roll back without the firmwares from firmware finder as you don't have an option to roll back.
The best option now would be to just wait for the next official build(might come soon as a small ota which has security patches) and then check if you are facing any issues installing which you won't as you are not rooted and dosent have an unlocked bootloader. So don't worry
Click to expand...
Click to collapse
Version 8.0.0.133 with July security patch just arrived and installed through official OTA!

karmakey said:
Version 8.0.0.133 with July security patch just arrived and installed through official OTA!
Click to expand...
Click to collapse
Good to hear you are up and running fine ?

Want to downgrade my honor 9 lite
After some update the theme engine crashed. Themes can no longer change the notiifcation bar icons and shortcuts icons.

Downgrading version Problem
I used firmware finder and dns method to downgrade my honor 9 lite and while i register update on firware finder and opens hisuite for update it is saying u r on already the latest version
Plz help me with downgrading my version 9 to 8