[Recovery][EMUI 8.x][Mate 9][Unofficial]TWRP 3.2.1-0 [28/04/2018]

[Pretoriano80]

Disclaimer​

This software comes wth no warranty,XDA staff ,myself or TeamWin stuff can't be hold responsible for any damage it may cause to your device.

Note: Currently Oreo 8.1 custom roms are not supported,only stock EMUI 8.x .

Download and Installation​

* Download twrp recovery
* Start your device in fastboot mode
* Install the recovery using the following command:

fastboot flash recovery_ramdisk [filename].img --> ex: fastboot flash recovery_ramdisk twrp_mate9_0.1.img

* Restart with this command:

fastboot reboot

* As soon as you execute the restart command,remove the USB cable and keep pressing Volume UP,so the device will boot to TWRP.This is to avoid that the device boot to OS,overwritting TWRP recovery.

Features​

Internal storage decryption = working
MTP and OTG connection = working
Backup&Restore = working

Note: There are no sources for this yet,because is based on the work of @zxz0O0 ,from Honor 9.

Contributors
**** Pretoriano80
**** @zxz0O0 - This wouldn't be possible without this guy,so big big thank to him.I used his base to make this recovery work ,so in sign of respect his nick will also be on the TWRP boot screen.Thank again buddy!
**** TeamWin project ,obviously.
**** @Tecalote - He was the main tester for this version and also he was the one that convinced me to open this thread in first place
**** @Blackball
**** Team OpenKirin - thanks for the "Oem Path wipe esclusion" code

Download links
twrp_mate9_0.1.img - initial release

 

[osk4rin]

Thank you for such a great project!

 

[Tecalote]

I am very happy with this TWRP. Everything is working so far on EMUI, Android 8.
Data wipe is possible, cause OEM Path is excluded.
Vendor.img and System.img and recovery_ramdisk can be flashed by choosing img to the related img.
Backup, restore of all shown Partitions working perfectly.
Decryption of storage if using Fingerprint /PIN is working. Full encryption support for data..
Many thanks to @Pretoriano80 for this awesome and first most complete TWRP for Mate 9 :good::good:

BTW: @Blackball had tested this TWRP for P10 Plus and it is also working on this Device (so it will run also on P10).
Many thanks for testing too :good:

 

[Wirmpolter]

This is good to know... Going to have to give this TWRP a try. So what, to decrypt data, do I just have to format data in TWRP or?

 

[Tecalote]

This is good to know... Going to have to give this TWRP a try. So what, to decrypt data, do I just have to format data in TWRP or?

Format data is only necessary if installing AOSP based Roms which require this (in installation guide)
But for Stock Firmware you don't need to decrypt (format) anything because encryption is fully supported

Of course, you can't install older Stock based Custom Rom which mount data in the updater-script without /dev/block/dm-0

 

[osk4rin]

I tried to installed on my Huawei mate using RR remix treble Rom, but It doesn't work, it just boot on the TWTP logo then boot up again.

 

[Tecalote]

I tried to installed on my Huawei mate using RR remix treble Rom, but It doesn't work, it just boot on the TWTP logo then boot up again.

We are aware of this, but this is the initial release.
It's fully working on EMUI for now.

 

[osk4rin]

We are aware of this, but this is the initial release.
It's fully working on EMUI for now.

Oh right, thanks.

 

[nupi]

Seems to work perfectly, in my case the rom doesn't even seem to be overwrite twrp upon normal boot

Thanks a lot!

 

[Pretoriano80]

Oh right, thanks.

If you (or anyone else) are still having/testing a custom rom, please send me /system/build.prop and vendor/build.prop.

 

[Caguayote]

i end up with error 255 on huawei mate 9 rooted oreo mha-l29 8.0.0.360(c567)
when i try to backup and at the beginning of twrp boot it ask me for a password

 

[Pretoriano80]

i end up with error 255 on huawei mate 9 rooted oreo mha-l29 8.0.0.360(c567)
when i try to backup and at the beginning of twrp boot it ask me for a password

If it's ask for password, then insert the same passwords/pin/pattern that you are using in Android, so TWRP can decrypt the internal storage.
That's the whole purpose of having a TWRP with decryption support.

 

[Caguayote]

10-4
Thank you for the clarification

 

[osk4rin]

If you (or anyone else) are still having/testing a custom rom, please send me /system/build.prop and vendor/build.prop.

how can I get them?

 

[Tecalote]

how can I get them?

If your Phone is rooted, with Root Filemanager like FX Explorer or Mixplorer you can copy from /system/build.prop and /vendor/build.prop

 

[mataflakitas]

Work this nougat .. ??

 

[osk4rin]

If your Phone is rooted, with Root Filemanager like FX Explorer or Mixplorer you can copy from /system/build.prop and /vendor/build.prop

I just attached the build.pro files .Using RR remix treble project

 

[_Nostromo_]

Hi, I really appreciate this recovery, just have one question: is there a way to enter the decryption pwd only once and not with every TWRP start? Would make things easier (even I understand the current way is much safer...). Thanks and respect!

 

[Pretoriano80]

Hi, I really appreciate this recovery, just have one question: is there a way to enter the decryption pwd only once and not with every TWRP start? Would make things easier (even I understand the current way is much safer...). Thanks and respect!

No, it's designed to work like this!

 

[_Nostromo_]

No, it's designed to work like this!

Ok, thought so, it definitely makes sense, just being a bit lazy... Thanks a lot for your prompt response, Pretoriano80! :good: