[RECOVERY][RC] TWRP for the Huawei P9 (with decryption support)

[paulobrien]

Hi all!

I am looking at getting official TWRP support for the P9 (aka 'Eva') (as I have for the other Huawei / Honor devices.

After creating a basic build tree, I have been spending countless hours reversing the decryption routines from the stock recovery and the good news is - I have a RC build online ready to try, complete with /data decryption!

I will be submitting the files for official TWRP support shortly, but in the mean time you can check out the build below. Flash using 'fastboot flash recovery' and, of course, use at your own risk.

Enjoy!

• DOWNLOAD - twrp-3.0.2-0-eva-modaco-rc3.img- MD5: f59edab048ca30feff78c67fad52c52e

P

 

[dondavis007]

Yeah. Thanks

Skickat från min EVA-L09 via Tapatalk

 

[somboons]

Could you guide how to build twrp for mate8?

Sent from my NEXT using Tapatalk

 

[umair9001]

i tried flashing the recovery but even after success the phone doesn't boot to twrp but to the huawei erecovery. any suggestions? my phone's model is EVA-L19

Finally tried the recovery posted here and it worked. http://forum.xda-developers.com/p9/how-to/guide-root-huawei-p9-t3367800

 

[tnhh]

I know that TWRP can't read /data, but can it wipe it? My phone no longer boots (more gory details at http://forum.xda-developers.com/p9/how-to/how-to-reset-phone-installing-twrp-t3378347) and I am wondering about the best way to do a factory reset.

 

[paulobrien]

You should be able to format I imagine.

P

Sent from my HUAWEI NXT-L29 using Tapatalk

 

[tnhh]

You should be able to format I imagine.

Didn't work I think it's because it can't mount /data to format it. Now when I boot I get a message saying that encryption was not successful and it asks me to do a factory reset, but I don't know how to do that!

 

[paulobrien]

I would suggest flashing stock recovery, or doing a format on userdata I guess.

P

 

[tnhh]

I would suggest flashing stock recovery, or doing a format on userdata I guess.

P

Problem solved! Just in case anyone else ends up making the same silly mistakes as me...

Formatting userdata doesn't seem to work; this seems to be a common problem on Huawei devices.

> fastboot format userdata
FAILED (remote: Command not allowed)

But flashing the stock recovery (I used the recovery found in the SRK tool from http://forum.xda-developers.com/p9/development/tool-srk-tool-huawei-bootloader-root-t3374068) did work.

Thanks for all your help!

 

[paratox]

@paulobrien any news for data decryption?

 

[raber111]

And you try to format data ? Not factory reset ? Format . it must work . it works for any other phones with Android 6 . but then you will need to flash custom ROM .

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[umair9001]

i tried flashing the recovery but even after success the phone doesn't boot to twrp but to the huawei erecovery. any suggestions? my phone's model is EVA-L19

Finally tried the recovery posted here and it worked. http://forum.xda-developers.com/p9/how-to/guide-root-huawei-p9-t3367800

@paulobrien after upgrading to L19C185B138, this recovery is working. It is now asking for password, which i believe is to decrypt the data partition.

 

[paulobrien]

Decryption reverse engineered, coming soon!

P

Sent from my HUAWEI NXT-L29 using Tapatalk

 

[paratox]

@paulobrien you are our huawei p9 hero! without your work the device would only be half as good as it is now! :good:

 

[paulobrien]

First post updated with RC1 build. WITH DECRYPTION SUPPORT!

​​​​​​​P

 

[tnhh]

First post updated with RC1 build. WITH DECRYPTION SUPPORT!

​​​​​​​P

It works! Thanks.

 

[umair9001]

First post updated with RC1 build. WITH DECRYPTION SUPPORT!

​​​​​​​P

Tested and working..although backup seems to failed..it says system backup failed error 255

 

[colthekid]

Fails on data partition backup to external sd card (internal memory backup fine)

Same 255 error as above

 

[raber111]

Maybe because of size ? More then 4 gigs ?

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[paulobrien]

Odd, i'll check it out.

P

Sent from my EVA-L09 using Tapatalk