Chosen Solution
My phone has been dropped serveral times. And this problem has happened recently. As shown on the video, that part keep flickering. When the phone is rebooted, the display is normal. But later, it appears. How can I fix it.
Dropped iPhone and bad screen go hand in hand. If you are lucky a screen replacement will fix the problem. Sometimes such issues depend on a logic board failure, but keep fingers crossed. Unfortunately there’s no way to tell for sure without trying a known good screen.
