my iphone 11 has grainy white lines
A few days ago, all of a sudden grainy white lines appeared on my iphone 11. It disappears for a few seconds when i unlock my phone but it solidifies after a few seconds and appears again. i have seen many people facing this issue but have not find a solution that works. I have already tried erasing my iphone but it did not work. is this a hardware/display issue? what should i do about it?