Database Users

Bootloop(kinda) after flashing TWRP

Recently picked up a P8 from someone who had one lying around.
I'm trying to root it but after installing TWRP i keep entering a bootloop which apparentely is counteracted by holding some combination of buttons.
currently im on B222 and i also tried installing marshmallow (stock) from SD which also makes me enter a bootloop and when my phone finally turns on its like it forgot it had a command to update.....
I'm a little lost on what to do now, i tried googling and all that but i cant find similar issues.

You cannot install Marshmallow with a B222 build, so you'll first need to downgrade to a B200 build.
If you are on a C432 (European) build, you can download European B200 directly from Huawei via this link & install it: http://download-c.huawei.com/download/downloadCenter?downloadId=68483&version=238533
Once B200 is present, if you check via Settings > Update you'll most likely be offered a Marshmallow OTA update. If not immediately or within a few days, then update manually as you tried before, again using a C432 build only.
With Marshmallow installed, you can follow one of these guides to install TWRP & root:
[Guide][Huawei P8] TWRP + Root Systemless Marshmallow Installation (GRA-L09&GRA-UL00)
Rooting and Unroot Huawei P8 [6.0] [FOR All EMUI4.0.1] all [GRA-Types]

Unable to upgrade to B370 or downgrade to MM

I am on VNS-L21C432B336 (beta) and i'm unable to install B370 via FF proxy. After downloading, it fails verification with error "failed to authenticate the package....will be deleted".
I can't post in the P9 Lite thread, so i am trying here, if someone can help me.
Do i need to downgrade to MM, B160? Cam i update to 370 via dload folder and 3 buttons method without downgrading?
I already tried rollback via this metod http://forum.xda-developers.com/huawei-p9lite/how-to/tutorial-rollback-n-to-mm-c432-devices-t3563955 and after 5% it gives the error "Software install failed! Incompatibility with current version. Please download the correct update package."
Do i have to do anything else before loading the rollback file onto the SD Card in the dload folder?

I have loaded B160 full into the dload folder and installed using the 3 buttons method whitout rollback and it worked just fine. After being on B160 i installed B370 using FF and Proxy method. Everything works as intended. Good luck!

Differnse between Rcovery Marsmellow and Nougat?

Hallo,
I have an MLA-L11C432, I`ve tried to update it to Nougat and I´ve flashed the nougat recovery.
The update failed, and i am although on B140.
Is it possible, that I`ve the Nougat recovery, but it run B140 (MM)?
My problem is that my phone signs in Update Manager New Version found, B330, I donloaded this but the
Install failed?
I´Ve tried it several Times, ever the same result.
Ive tried although to put the downloded B330 file extracted in dload folder on sd card and used the 3Button Method,
but it didn´t work, too.
It seems my phone isn`t to be updatet, neither inofficial nor official!!!.
Has anyone an idea or the official B140 Recovery?

Can't upgrade or downgrade software on p9lite

First off
I have a vnsL31 p9lite on mm c432b160
Unlocked bootloader and frp
Can flash TWRP, can root, can unroot
Can access fastboot
I have b160 firmware and rollback package
I have b336 update and data hw eu zips
I have the Huawei update extractor
I have Revolution recovery
I have Meticulous recovery
I have EliteKernel
I have the OEM unlock code
I have c432oeminfo zip and oeminfo with a custom.bin
I have hisuite
Phone is working fine
My issue is that I can't upgrade the phone or downgrade the phone to any software at all.
Before my issue I was on b160 and upgraded successfully to b336 and used it for a long time. I then upgraded to b370 using firmware finder successfully. I then wanted to root nougat so I could uninstall some Google apps and tried the EliteKernel method, which didn't work and started going into bootloops. I then tried to downgrade to mm using the rollback package and then flashing b160 which worked successfully.
Then I tried upgrading back to nougat with firmware finder which didn't work, I had missing apps so I did the rollback method again which landed me on nrd90m testkeys. I followed a guide I can't remember to get back to c432 which didn't work either my phone then got bricked. It was stuck on bootloop and vibrated twice each time it tried to go past the Huawei logo. I couldn't access anything but fastboot. I then followed another guide to extract cust,boot,system and recovery images from the b160 update zip and flash those through ADB which worked and have my phone in working order.
My phone now shows build number as vnsl31c432b160 but model number as hi6250. I can't update the phone to nougat or reflash mm to get back to completely stock. Dload 3 buttons method doesn't work for b160 or b336, it goes to 7% then System incompatible error. Flashing the update zips through TWRP doesn't work either, I always get a zip error although it says done but nothing happens.
I want to get back to stock nougat or may even try a custom ROM as long as it is extremely stable. I am willing to root and unroot and do whatever need be to upgrade again. I think I have all the files necessary and should be able to follow any advice given

You must try flashing a OEMInfo for your model and correspondent firmware.. If you want, you can send me a PM with the details of your phone and I'll try to give you the exact files you need to use..

The model is VNS L31, it's dual sim and I'm currently on marshmallow b160 region c432, I bought it carrier unlocked. But the model number shows hi6250 now. I'll try flashing the oeminfo you give me and hopefully it works

This is what I mean, but it is a VNS L31

Received OTA: NRD90M test keys

Hello. Finally I received the OTA Nougat update. Until now I had a perfectly working TWRP/Rooted phone on Marshmallow. Unfortunately I'm stuck now. I have a VNS-L21 Dual Sim Phone.
The update installed fine, but model number says NRD90M test keys. I'm missing a ton of the stock features, including system updater app. I'm unable to return to Marshmallow as said in this tutorial https://forum.xda-developers.com/huawei-p9lite/how-to/how-to-roll-noguat-to-mm-l31-21-c185-t3539885
(package installation failed when I try to)
What shall I do?

Flanker35 said:
Hello. Finally I received the OTA Nougat update. Until now I had a perfectly working TWRP/Rooted phone on Marshmallow. Unfortunately I'm stuck now. I have a VNS-L21 Dual Sim Phone.
The update installed fine, but model number says NRD90M test keys. I'm missing a ton of the stock features, including system updater app. I'm unable to return to Marshmallow as said in this tutorial https://forum.xda-developers.com/huawei-p9lite/how-to/how-to-roll-noguat-to-mm-l31-21-c185-t3539885
(package installation failed when I try to)
What shall I do?
Click to expand...
Click to collapse
follow another guide

Flanker35 said:
Hello. Finally I received the OTA Nougat update. Until now I had a perfectly working TWRP/Rooted phone on Marshmallow. Unfortunately I'm stuck now. I have a VNS-L21 Dual Sim Phone.
The update installed fine, but model number says NRD90M test keys. I'm missing a ton of the stock features, including system updater app. I'm unable to return to Marshmallow as said in this tutorial https://forum.xda-developers.com/huawei-p9lite/how-to/how-to-roll-noguat-to-mm-l31-21-c185-t3539885
(package installation failed when I try to)
What shall I do?
Click to expand...
Click to collapse
If your bootloader is unlocked and frp unlocked flash a new oeminfo then use 3 button method to flash mm

go to ministry of solutions and search for debrand p9 lite.But download necesarry files first,some files was missing on the guide.Look for other sources.

I had the same problem followed this tutorial and rolled back to MM and did a clean OTA update to B370 then to B380