[Huawei P20 Pro Questions & Answers] chinchan9:
UPDATE: Please read my last message as that is where i am now. stuck on ERROR 7 while trying to sideload Latest Lineage Rom in twrp 3.3.0.2

hello People of Xda i have a question i just bought a p20 pro with unlocked bootloader and it is running los 16.0 long story short i bought this phone with unlocked bootloader and how it is now

p20 pro

Serial Number: LCL0218320009805 (its a CLT-09 apearently)

Build Number: lineage_charlotte-userdebug 9 PQ3A. 190705.003 e6b2c9a74b witch is the lineage-16.0-20190722-nightly-charlotte- i think

sha256

but i have a few questions i just wanna install magisk on it but i read there are a few restrictions that i couldnt just flash trough twrp but i have to sideload and flash apps because of encryption or something i dont fully understand that.

so what i want done sideloaded open gapps that worked and then rebooted everything worked fine.

p20 pro

Serial Number: LCL0218320009805 (its a CLT-09 apearently)

Build Number: lineage_charlotte-userdebug 9 PQ3A. 190705.003 e6b2c9a74b witch is the lineage-16.0-20190722-nightly-charlotte- i think

sha256

if i press Volume up + Power when phone is off it boots me to Erecovery but when i use this tool https://xdaforums.com/huawei-p20-pr...l-one-driversunlocktwrpfactory-t3779416/page5 And click Reboot Recovery while android is running it reboots me into Twrp 3.3.1-0 but i dont know whatbuild official or an unoffical. i tried to make a backup in twrp but it says can not create /data/media/0/TWRP Folder (required key not available) failed to make backup folder.

So i looked at the folders but when i look into my /sdcard it shows 10 maps with names like (2XtndypQA4RQ0dCtNechaB) and (BvZw1HkIUW5LDKk4BJgNSB) and 8 more so the guy told me i should sideload the open gapps and magisk trough that ALL in One Tool but when i do it says the same error as when i want to make a backup

it also says Failed to mount /system_root aprearently this is the encryption that i can`t turn off off on the phone.

on all my other rooted phones its not this much of a hassle and i dont want to break anything by doing something that I cant undo I`d rather ask some experienced people.

EDIT:UPDATE

I lost my Twrp because i sideloaded magisk 19.3 and flashing latest offical twrp to recovery didn`t work. i think because of magisk somehow.

This Guide says https://www.xda-developers.com/how-to-root-the-huawei-p20-pro-and-install-magisk/ i have to do that but its for CL29 and i do own a CL29 but the bootloader is locked on that device thats why i bought a second p20 pro xD so maby someone can kick me in the right direction on how to go on from this or had experience doing this. or is that guide outdated and can i just install magisk now

so what i dont know if i should do is

A: Rebrand the phone to CLT-29 to install that boot img for magisk (i dont know if that removes the unlocked bootloader) depends on what method i use i think? and if i need to downgrade first

B:downgrade back to a 8.1 stock rom first but i dont know my what my stock firmware is and firmware checker doesnt work because of los 16.0

C:i just want magisk but i dont know for sure if i can just flash magisk on my current build and still be able to hide root in magisk because apearently that is a problem (something with decrypting in Twpr)

D: i dont know if i can just not flash stuff on this twpr build or if its perfectly fine on the unofficial build i think he used https://xdaforums.com/huawei-p20-pro/development/huawei-p20-pro-charlotte-l29c432b131-8-t3809964 this twpr build

honestly im finding it allot of info to take in and im lost on what to do now as i didnt root the phone myself and didnt really know what happened and what i can and cannot do safely.

I don`t know what information is outdated for my latest build and and im comming into the P20 scene fairly late can someone give me a hint on what to look out for trying Magisk and twrp to work on my build.

i just dont wanna lose my boot loader unlock or full brick the device and i feel im so close xD