[GUIDE]Unlocking Bootloader + Magisk Root for Huawei Mate 20 Pro

[mrrobot06]

I'm having trouble booting into stock 228 with root. Just get bootloop when I try to reboot. But if I connect the usb cable and then boot into bootloader, then unplug and hold power+volume up it boots with root. Any ideas what's causing this?

i have the same problem as you but now this method doesn't work anymore... i can't boot with root

 

[mtodak]

Can model LYA-L09 be unlocked?
Will it factory reset the phone or there will be no changes at all?
Is it permanent no matter what ROM, Firmware, Radio i flash thereafter?
Whats the step by step procedure?
Root: are there any known problems like bootloops etc. with build number 9.0.0.198? Asking as can see here that there are with .228

 

[richard_li]

i already unlocked my mate20pro, but problem is now i can't relock it , even I use "fastboot oem relock +unlock code"
anybody can help ?

 

[Minotaur]

I have rooted with magisk

Sent from my HUAWEI LYA-L29 using XDA Labs

Howdy, can you please provide the method/link to thread you used? Also, possibly your patched boot.img and phone model/FW version if possible?
Cheers

 

[richard_li]

Solution for me to relock phone was to flash a rom to the phone and when the firmware flash was at the 100% point as soon as phone starts to reboot you plug in cable and volume down into fastboot mode and then use the "fastboot OEM relock (your bootloader code).

Works for me everytime

thanks but it still not workable , anybody still have other solution ???

 

[DN38416]

thanks but it still not workable , anybody still have other solution ???

If you want to relock it, you can just do a firmware upgrade via USB method and it will lock it automatically.

This method: https://forum.xda-developers.com/ma...-to-update-huawei-mate-20-pro-locked-t3897480

 

[richard_li]

If you want to relock it, you can just do a firmware upgrade via USB method and it will lock it automatically.

This method: https://forum.xda-developers.com/ma...-to-update-huawei-mate-20-pro-locked-t3897480

i tried E-recovery method it can flash successfully but not solve the relock issue... can you share me more detailed USB method for firmware upgrade ? i try lots of way , funkyhuawei , HStool ,etc..... not solved

 

[it4repair]

Anyone could patch 9.0.0.228 ramdisk please for L09?

I have tried but it does not work for me

 

[DN38416]

i tried E-recovery method it can flash successfully but not solve the relock issue... can you share me more detailed USB method for firmware upgrade ? i try lots of way , funkyhuawei , HStool ,etc..... not solved

Yeah eRecovery won’t do it. It needs to be via the USB method. Just follow the instructions in the OP of the thread I linked.
You’ll need to have either a USB-C thumbdrive (or an adapter or OTG cable I think)
I’ve only tried it with USB-C thumbdrive.

 

[demon2112]

quick question, do I need to fill out both the imei when I ask for an boatloader unlock code from FH for example?

 

[Fiscelan]

Dude just buy one from crys18. It’s like $6.
So many beggars on this thread.

quick question, do I need to fill out both the imei when I ask for an boatloader unlock code from FH for example?

Only the first IMEI if you have a Dual SIM.

 

[DN38416]

Anyone know if Huawei is able to tell if the bootloader is unlocked just by checking the IMEI? Is this information uploaded to their servers or anything or is it confined to the device?
Or do they need to physically connect to the phone to find out?

Just curious in case the phone somehow gets bricked and I attempt a warranty claim.

 

[deepsrd]

Anyone know if Huawei is able to tell if the bootloader is unlocked just by checking the IMEI? Is this information uploaded to their servers or anything or is it confined to the device?
Or do they need to physically connect to the phone to find out?

Just curious in case the phone somehow gets bricked and I attempt a warranty claim.

Think not, but in my experience, it is extremely hard to brick your phone.. especially with the erecovery.

I have been tinkering with GSIs since I have unlocked my bootloader, and I have flashed almost all partitions I know, except OEMinfo.
Everytime, I can get back to stock using eRecovery.

Side note, A/B GSIs boot fine on the mate 20 pro..

• Resolution (dpi) is wonky,
• NFC does not work
• FP works, but it wont enroll you, as the SEpolicy is missing..
• BT does not work well

I will work on fixing these when I get time..

 

[fromiOS2Android]

Think not, but in my experience, it is extremely hard to brick your phone.. especially with the erecovery.

I have been tinkering with GSIs since I have unlocked my bootloader, and I have flashed almost all partitions I know, except OEMinfo.
Everytime, I can get back to stock using eRecovery.

Side note, A/B GSIs boot fine on the mate 20 pro..
Resolution (dpi) is wonky,
NFC does not work
FP works, but it wont enroll you, as the SEpolicy is missing..
BT does not work well


I will work on fixing these when I get time..

Use erecovery you say. What about recovery_ramdisk.img that is modified?? Do you have original recovery ramdisk? Or does erecovery fix this to stock no matter what is earliar flashed??

 

[deepsrd]

Use erecovery you say. What about recovery_ramdisk.img that is modified?? Do you have original recovery ramdisk? Or does erecovery fix this to stock no matter what is earliar flashed??

Yes, it will overwrite your recovery partition as well..
It wont relock your bootloader.

 

[flyl0]

i know, but what is solution ?

The solution is to factory reset your device

Sent from my HUAWEI LYA-L29 using XDA Labs

 

[ubersapian]

So if anyone having issues patching extracted ramdisk recovery / patched magisk images from update app for root then the alternative method is to flash twrp bootloader and just install the latest canary build magisk 19 from there .. once that is done then install latest magisk manager from the canary build GitHub.

 

[richard_li]

The solution is to factory reset your device

Sent from my HUAWEI LYA-L29 using XDA Labs

not workable ....... try factory reset many times, but BL still unlock

 

[DN38416]

not workable ....... try factory reset many times, but BL still unlock

I already told you how to get it relocked.
Just flash a firmware via USB/dload method

 

[ilos]

not workable ....... try factory reset many times, but BL still unlock

You should make a dload update. BL will be locked again and your phone reset like out of box.

Sent from my LYA-L29 using Tapatalk