Hi, I have had this issue with my four years old Fairphone 4 since a few days ago, do not know if this can be related to the latest system update or maybe the screen is done:
- Black vertical bars at the left of the screen
- vertical multicolor bars all over the screen from time to time
- screen freezes for a minute
- ghost touches.
I just tried dettaching the screen but did not see anything wrong (I’m no hardware expert though).