why would you leave ?
then delete the subject device crashes in this rum.
Edit:
I'm fixed screen flick
Just flash twrp oreo firmware https://bigota.d.miui.com/V10.2.2.0...roGlobal_V10.2.2.0.OEKMIXM_5af4a46864_8.1.zip
after install rom.
I'll try to update