First, I should point out that I'm just a user, not a developer or hacker. I'm posting this because I don't know where else to ask for help.
This will most likely look like the post of an idiot. But, oh, well, I did manage to mess up my phone, which means I am an idiot. So here it goes: I had 16.0 installed and I tried to install 14.0 from TWRP recovery mode. Basically, Magisk hide wasn't working very well so I wanted to see if it worked with an older version. Now my phone is stuck in a boot loop. It just shows "Samsung Galaxy S8 powered by Android" then restarts. I can boot into TWRP and connect the phone to the PC to access the storage this way, but I can't boot into the OS. Is there any way I can fix this, preferably without losing my data?
I tried flashing the official uninstaller, but I get the message "Update process ended with ERROR: 1"
Here's what the log says about the uninstaller:
Mounting /system, /vendor
-Device platform: arm64
cp: can't stat '/dev/tmp/install/arm64/.': No such file or directory
! Cannot find /data/adb/magisk
Updater process ended with ERROR: 1
I:Install took 1 second(s).
Error installing zip file '/sdcard/Download/Magisk-uninstaller-20180429.zip'
Updating partition details...
I: Data backup size is 32943MB, free: 2620MB.
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'vfat'
...done
I:Set page: 'flash_done'
I: operation_end - status=1
I looked at the contents of the zip on my computer, and it doesn't have an arm64 folder. So the uninstaller doesn't work on arm64 phones?
Update: I managed to uninstall Magisk using a compatible uninstaller, but the phone still doesn't boot into the OS.
Update 2: if I have to flash the stock ROM, I'm planning to do the next thing: back up my data partition to an external hard drive with TWRP. After I flash the ROM and wipe everything, I want to reinstall TWRP and restore that backup. Would this cause any issues?
This will most likely look like the post of an idiot. But, oh, well, I did manage to mess up my phone, which means I am an idiot. So here it goes: I had 16.0 installed and I tried to install 14.0 from TWRP recovery mode. Basically, Magisk hide wasn't working very well so I wanted to see if it worked with an older version. Now my phone is stuck in a boot loop. It just shows "Samsung Galaxy S8 powered by Android" then restarts. I can boot into TWRP and connect the phone to the PC to access the storage this way, but I can't boot into the OS. Is there any way I can fix this, preferably without losing my data?
I tried flashing the official uninstaller, but I get the message "Update process ended with ERROR: 1"
Here's what the log says about the uninstaller:
Mounting /system, /vendor
-Device platform: arm64
cp: can't stat '/dev/tmp/install/arm64/.': No such file or directory
! Cannot find /data/adb/magisk
Updater process ended with ERROR: 1
I:Install took 1 second(s).
Error installing zip file '/sdcard/Download/Magisk-uninstaller-20180429.zip'
Updating partition details...
I: Data backup size is 32943MB, free: 2620MB.
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'vfat'
...done
I:Set page: 'flash_done'
I: operation_end - status=1
I looked at the contents of the zip on my computer, and it doesn't have an arm64 folder. So the uninstaller doesn't work on arm64 phones?
Update: I managed to uninstall Magisk using a compatible uninstaller, but the phone still doesn't boot into the OS.
Update 2: if I have to flash the stock ROM, I'm planning to do the next thing: back up my data partition to an external hard drive with TWRP. After I flash the ROM and wipe everything, I want to reinstall TWRP and restore that backup. Would this cause any issues?
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