My case:
Lenovo K5 note 2018, open bootloader, compatible with treble, android 8.1 and partition A.
I install by fastboot because my model does not have TWRP, It starts normal, I can enter my account and I get to the home screen.
But when you turn off the screen ... boom!
gives forced closing and no longer turns on
............starts in a bootloop of restarts and shutdowns!
Lenovo K5 note 2018, open bootloader, compatible with treble, android 8.1 and partition A.
I install by fastboot because my model does not have TWRP, It starts normal, I can enter my account and I get to the home screen.
But when you turn off the screen ... boom!
gives forced closing and no longer turns on