WARNING: Most of bootloop can be prevented but not completely. The script can be killed by other process, another module or broken Magisk. Magisk should add a function that, when it finds a file created in Custom Recovery (example: /cache/disable_magisk), it fires off all modules.
Protect your system from bootloop caused by Magisk modules. In case the data partition is encrypted and you cannot access /data/adb/modules, or you don't want to turn off force encryption to protect your private data.
- Magisk 20.4+ is installed
It's Magisk module, flash it in Magisk app
Usually, bootloop occurs because zygote doesn't start properly or stuck at restarting. The script run in late_start mode. It will check Zygote's Process ID 3 times every 15 seconds. And if Zygote's Process ID doesn't match for 3 times, check the Process ID for next 15 seconds to make sure and if it's different again, the script will disable all modules and reboot the your device.
You can boot into TWRP and create a dummy file named disable_magisk in one of these location to tell the script disable all modules and reboot your device (if Auto detect is not working):
- /cache
- /data/unencrypted
- /metadata
- /persist
- /mnt/vendor/persist
How to create a file in TWRP? Open Terminal Emulator in TWRP and type:
touch /cache/disable_magisk
NOTE: MAKE SURE ALL PARTITIONS ARE MOUNTED