Z Flip 6 horizontal line

[Wildman1]

X Flip 6 bottom half of inside screen blank, must use outside screen to unlock, horizontal line where screen folds, no physical damage 

[Fiona26]

Contact Samsung, if no damage should be covered under warranty.

[johnz237]

Hi! Welcome to the Samsung Members community. Go to Settings - Security and privacy - turn off Auto Blocker. Go to the phone dialer - type *#0*#. This will open a menu; click on the colors at the top. If the colors remain, this isn't a software issue but a hardware one; the only option would be to get a repair