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[GUIDE] Manual updating/Firmware Collection/Rooting [LATEST FW: B225]

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By OldDroid, Recognized Developer on 24th January 2019, 09:36 AM
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Hello Mate 20 Pro fans, this is a thread which should help all unlocked users!
Lets dive right into it..


1. Firmware Collection
NOTE: all of the firmwares provided are full ones, no partial ota updates. I recommend viewing this thread in your Browser for one-click-direct links.
last updated: 22.02.19


2. Installing Updates/Restoring to stock
NOTE: I do not take any responsibility what you flash to your device.
I recommend to not downgrade to a previous EMUI version - it might trigger a brick.
This has been tested on my Mate 20 - i upgraded sucessfully to B171 -> B183 -> B188.
  1. Install the app i wrote from here (EMUI Flasher 1.2)
  2. Make sure you are rooted
  3. Select the update_full_base.zip you downloaded (the second firmware file can be ignored)
  4. Tap flash button - device should restart to recovery and install the update

3.1 Rooting (Simple way)
NOTE: you need a unlocked bootloader, those can be bought online for ~30 bucks
  1. Download the recovery ramdisk image i patched in magisk manager here
  2. Flash the image to recovery ramdisk through fastboot
    (Command: fastboot flash recovery_ramdisk recovery_ramdisk.img)
  3. Reboot and keep the Vol+ button pressed to start to recovery mode (Don't worry, it will boot to system anyway)
  4. install latest magisk manager canary build - download here
  5. Enjoy magisk

XDA:DevDB Information
[GUIDE] Manual updating/Firmware Collection/Rooting, Tool/Utility for the Huawei Mate 20 Pro

Contributors
OldDroid

Version Information
Status: Testing

Created 2019-01-24
Last Updated 2019-03-20
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24th January 2019, 09:42 AM |#2  
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hey,

you can update although you are rooted? after the update is finished is the rooted boot.img still there or do i have to flash it again? And nothing gets deleted? (in best case?)
24th January 2019, 09:46 AM |#3  
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Quote:
Originally Posted by sille

hey,

you can update although you are rooted? after the update is finished is the rooted boot.img still there or do i have to flash it again? And nothing gets deleted? (in best case?)

you have to reflash the patched_boot.img to recovery_ramdisk (via fastboot) after an update to regain root access.
Your userdata should stay intact - atleast it did for me when upgrading from B171 -> B183 -> B188.

Regards
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24th January 2019, 12:18 PM |#4  
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I tried updating my phone to 188 but now it seems to be stuck in a boot loop and I can't seem to get out
I was previously on 182. I have an LYA-029 C636 (if that makes a difference)

I tried flashing another image but it still won't boot. I then tried selecting "Download latest version and recovery" in eRecovery but got an error getting package info from server.
I don't know what to do

EDIT: All good got it working again. Found my original 182 image that I got from auras76 thread and flashed it again and also flashed the patched_boot.img. Fixed.

EDIT2: Actually.. it's not completely fixed. Chrome doesn't seem to open anymore for some reason.. and safetynet fails both basic integrity and cts profile

EDIT3: So I ended up having major issues and soft bricked my phone after a factory restore failed. I had to buy a credit from FH and used their method to restore the phone to 187. Was an absolute pain. I'm not sure if I did something wrong when I used your app initially but I'm reluctant to try it again. I'm currently re-rooted and just going to chill on FH's 187 firmware for now.
24th January 2019, 12:36 PM |#5  
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because the 188 build is a build for the Mate 20, not for the pro
@OldDroid change that 188 build, because its a wrong one and seems to cause a brick

afaik, for the M20Pro the hightest revision is 187
24th January 2019, 12:51 PM |#6  
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Quote:
Originally Posted by sille

because the 188 build is a build for the Mate 20, not for the pro
@OldDroid change that 188 build, because its a wrong one and seems to cause a brick

afaik, for the M20Pro the hightest revision is 187

Its for lya, i scanned for the firmwares myself.

Regards
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24th January 2019, 12:53 PM |#7  
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Quote:
Originally Posted by OldDroid

Its for lya, i scanned for the firmwares myself.

Regards

no, it isnt,

http://update.hicloud.com:8180/TDS/d...gelog_base.xml <- laya
24th January 2019, 12:55 PM |#8  
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Quote:
Originally Posted by sille

no, it isnt,

http://update.hicloud.com:8180/TDS/d...gelog_base.xml <- laya

laya is just a long version of lya, don't ask me why huawei does it, go extract the fw, it'll tell you its for LYA.

Regards
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25th January 2019, 12:25 AM |#9  
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Quote:
Originally Posted by OldDroid

laya is just a long version of lya, don't ask me why huawei does it, go extract the fw, it'll tell you its for LYA.

Regards

I can confirm the longer name: LAYA-L29C for example

Sent from my Mate 20X MAX using Tapatalk
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25th January 2019, 03:01 AM |#10  
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that means unrooted devices cannot return to stock ?
25th January 2019, 08:27 AM |#11  
Is this safe to flash i saw latest for pro is. 183 also i am from Australia flashing. 183 will causes any issues? Also do I need to be rooted to flash this read up top something about root

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