[P8lite Q&A, Help & Troubleshooting] DaGreatAssyr:
Hello community! :)

First of all, I feel I have to apologize to you all since I know I have clogged the forum with a lot of requests of help about upgrading my smartphone... They are scattered all over the place so I have decided to gathered in a definitive one.

I have edited this post to make it a comprehensive guide for all the people who want to upgrade their HUAWEI P8 LITE ALICE from the stock Android 5.0.1 to the Resurrection Remix N v5.8.5. Before go any further I want you to read the following disclaimer:

PLEASE PLEASE PLEASE READ THIS!!

I am not a developer. I am not a programmer. I have been greatly helped by the user Botar230 so, unfortunately, I cannot help you in case of problems. I myself had problems and had to ask for help. The only thing I can say is to be always polite and try to explain, as best as you can, what's going on.

I will try to be as much clear as possible here but keep in mind that english is not my native language so it is possible that I might mistaking something. My apologize. I am not responsible for any damage you may do to your mobile and I am not responsible to any data loss it may occur. You should ALWAYS do a backup before proceeding. ALWAYS.

I've decided to flash Resurrection Remix N v5.8.5. because it is pre-rooted with Magisk.

BEFORE start to upgrade your mobile,

read all this post twice

and be sure to understood all the things I have written here.

Check the links

,

check if you have the correct files

,

check if your mobile is fully charged

,

check if the bootloader is unlocked

,

check if you have the right ADB files and drivers downloaded and installed

. Please do it BEFORE you start everything.

Done? Everything is fine? So, here we go! :)

GOAL: Moving from stock Android 5.0.1 to Resurrection Remix N v5.8.5.

MY MOBILE: Huawei P8 Lite ALICE (ALE-L21) unbranded single SIM - Build number: BalongC50B311 - Kernel 3.10.61-gcd3fde7 - EMUI 3.1

BOOTLOADER STATUS: unlocked, checked via ADB

The build number and the kernel number might differ. You should check them carefully and search around this forum how to proceed properly. Also, I totally don't know what to do if you have a double SIM phone. Sorry. :(

These are the files I have downloaded and put on the MicroSD before starting the whole process:

b895_update.zip

open_gapps-arm64-7.1-nano-20180702

RR-N-v5.8.5-20180302-alice-OpenKirin.zip

The file TWRP_3.1.1-0_ALICE_BL.img have to be put in the same directory where adb.exe is since you will flash it via adb command: fastboot flash recovery TWRP_3.1.1-0_ALICE_BL.img once you have entered in fastboot mode AND you have checked that your bootloader is unlocked. :rolleyes:

Now, the next steps that worked for me are:

install TWRP_3.1.1-0 via ADB

Factory reset (Wipe -> Swipe to wipe)

update the device with b895_update to get Android 6.0 and EMUI 4 (by putting b895_update on the SD card and flash it via TWRP previously installed or via sideload as suggested by Botar230. I find myself comfortable to use ADB.)

install again TWRP_3.1.1-0_ALICE_BL via ADB or via sideload

Flash RR-N-v5.8.5-20180302-alice-OpenKirin) via TWRP AND at the same time...

Flash Open Gapps via TWRP. You HAVE TO USE THE ARM64 - 7.1 VERSION!!!

Reboot your device. It is done! :good:

NOTE!! Updating the phone to b895 will take really a lot of time. Seriously. It might be scary but it's ok. It will update EMUI too.

NOTE!! When you install TWRP via ADB, the TWRP_3.1.1-0_ALICE_BL.img file MUST BE in the same directory where the adb.exe file is.

At this point, everything should be fine, working and squeaky clean!

The ROM is pre-rooted with Magisk and that's pretty cool!

At this point I think my brief tutorial is over. If you find out something important missing or wrong, please point it out! It will help other people! Thank you!:cowboy:

Some links about ADB that I found quite useful:

How to Install TWRP Recovery via Fastboot On Any Android Device

How to Use ADB & Fastboot Commands with your Android Device

ADB Shell

Once again I have to thank the immense patience of BOTAR230 and all the people that worked so hard to make everything possible: I mean the guys (and gals? Maybe, I don't know... :confused: ) behind the Resurrection Remix ROM, behind the TWRP project and the Open Gapps and the many more I probably forgot! Thanks everyone! :cool: