Bricked after TWRP+Magisk on Mi9T pro


elektrinis

Members
Mar 5, 2021
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3
I had a Magisk-rooted xiaomi.eu ROM, version from few months back. An update came, and so I have updated to the latest stable version. After this, Magisk disappeared and root was lost.
I have tried to install Magisk in their recommended way: patching the custom recovery, TWRP in my case.
After doing this, the ROM no longer booted. Problem is, I have not backed it up, and I really need some things back, like call logs and SMS.
So I have cleared cache and dalvik, also wiped system and flashed a fresh xiaomi.eu ROM. It still does not boot: hands at MIUI logo.
Back in TWRP, it does not ask for pattern and all my data is encrypted (scrambled filenames). I can only get the files if I flash global MIUI stable, which also does not boot.
So is there a way to make it boot, to at least back up some things?
 

Poney70

Donator
Oct 3, 2019
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You don't wipe system because Magisk is not working... Why didn't you ask for help before wiping things or flashing another ROM? ... :(

You messed everything now so it's time to do a clean install = "Format Data" button in the "Wipe" menu of TWRP. Then reboot your phone to TWRP and install any ROM you want.

SMS & Call logs should have been saved in Google Cloud and/or Mi Cloud, no?
 

elektrinis

Members
Mar 5, 2021
6
3
To be honest I was in a rush to get back and running asap, and I did not expect a quick solution on forums. I don't recall the exact steps I did, but I did not wipe anything initially. First I dirty flashed clean TWRP, that did not work. Then I dirty flashed the same (latest) version of xiaomi.eu. Did not boot.
Then I dirty flashed global stable MIUI. Did not boot. Only then it seemed like wiping is the next step, so here I am.

Just to understand it better, where are call logs located? Are they in data or system?
Can I use existing data for fresh install of the same version of xiaomi.eu ROM?
 
Last edited:

Poney70

Donator
Oct 3, 2019
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Just to understand it better, where are call logs located? Are they in data or system?
Can I use existing data for fresh install of the same version of xiaomi.eu ROM?
There are in the data partition. ;)

First, install this zip in TWRP to fully uninstall Magisk => Magisk-uninstaller-20210117.zip

You can try to create a TWRP backup of your data partition then save the "TWRP" folder (in the root of your phone's storage) on your computer. (But the use of an USB-OTG is recommended :))

Clean install then boot & finish the first setup wizard. After that, you can try to restore your TWRP backup.

Also, what Magisk version did you install?
 
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elektrinis

Members
Mar 5, 2021
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OK thanks, will try once whole 100GB of storage files finishes transferring to PC. MTP is so painful.
I'm now on TWRP 3.5.0_9-0. Previous one was v3.3 of something like that.

Magisk is v22 from https://magiskmanager.com/
The app installed from within manager, however Magisk itself, as instructed by manager, had to be installed by patching recovery image, which I did from within manager.
 

Poney70

Donator
Oct 3, 2019
5,503
337
Magisk is v22 from https://magiskmanager.com/
The app installed from within manager, however Magisk itself, as instructed by manager, had to be installed by patching recovery image, which I did from within manager.
Ok about TWRP but for Magisk you can simply rename it and install it in TWRP => https://xiaomi.eu/community/threads...nstalling-android-11-update.60181/post-594671

;)

EDIT: This website "https://magiskmanager.com/" is NOT an Official website for Magisk. Official Magisk releases are available here => https://github.com/topjohnwu/Magisk/releases :)
 

elektrinis

Members
Mar 5, 2021
6
3
While I'm backing it up, I'll mention I also have an issue with encryption.
With xiaomi.eu flashed, TWRP does not prompt for pattern, and I see encrypted filenames in storage.
With MIUI flashed, TWRP asks for pattern. When provided, it says it has successfully decrypted "user 0", and failed with "user 999". I am also being reminded about this when backing up data. Not sure where the second user is from, perhaps from dual apps feature? I then wonder if it's needed and if there's a way to decrypt it before I mess with it any further.
 

elektrinis

Members
Mar 5, 2021
6
3
OK, so I have backed up /data. Once fresh ROM was installed, TWRP failed to restore with error 255. However some data was in fact restored - a small portion of settings (language prefs) and SMS.
For call log I had to fish out from TWRP backup. If anyone interested, these are the locations for xiaomi.eu MIUI 12, Android 10:
call logs: /data/com.android.providers.contacts/databases
call recordings: /data/com.android.soundrecorder/databases (only database, recordings are located in media storage.

Note to future self:
don't ever wipe /system
don't wipe /data. Format it instead.
xiaomi.eu needs official MIUI to be installed prior flashing.