I quite hard to say but it could be a cable issue!
It could also be a internally damaged OLED display
I would open it up and reseat the cables in their connectors and if that doesn’t work it will need replaced
I never pay the price they want for them new so I get a iCloud locked ones and remove their displays as they cost waaaaaay less and it’s original quality. :-)
Hi
I quite hard to say but it could be a cable issue!
It could also be a internally damaged OLED display
I would open it up and reseat the cables in their connectors and if that doesn’t work it will need replaced
I never pay the price they want for them new so I get a iCloud locked ones and remove their displays as they cost waaaaaay less and it’s original quality. :-)
Hopefully this helps
Thanks:-)