After I woke up my phone started flashing display white green I have an Note 20 ultra somehow it fixed itself I went to service center explained they said we need to change the display so it will be a charge etc. So I kept my phone switched off for a while and started using spare phone now after I stated my note 20U again I noticed the issue has stopped happening but not sure how long, but I can see faded white border on my phone display.
