Random Bootloop on FP4 after Incorrectly installing LineageOS from Magisk

[hirnsushi]

I wouldn’t try to recover from that state, a proper fresh install makes more sense.

Follow the LineageOS install instructions but with your LOS4microG files. Afterwards install the Magisk app, take the los4microg-boot.img and follow the regular rooting instructions:

@hirnsushi

Step-by-step:

1. Patch the downloaded stock boot.img with Magisk
2. Transfer / adb pull that patched boot.img to your PC
3. Reboot to fastboot adb reboot bootloader and temporarily boot from the patched boot.img fastboot boot /path/to/patched_boot.img
   4.Do not flash that boot.img!!!*
4. Wait for the device to boot (took a bit longer than usual)
5. Open the Magisk app (press Cancel when asked to perform Additional Setup), choose direct install and reboot
6. Have fun

Oh and welcome to the community