Chosen Solution
I have already power cycled the phone. I have also unplugged and reconnected the the connecters. I don’t know what else to do. Thank You EDIT: I think the white lines are there because the person who’s iPhone I am fixing previously got it fixed by someone else. My guess is the other person did not use a good part and now there are white lines.
Go to apple phone is still under warranty
The white lines are normally caused by the digitizer connector first try the another screen or the old one if the LCD is still good it you have the same problem I would say it’s the digitizer connector, cleaning it with alcohol, if it is damaged then you will need to have a new soldered on.
