Chosen Solution
A coworker came to me with his IPhone X with a responsive screen black screen. He mentioned that he took it in for repairs at a local shop. They promptly replaced his screen and battery but the problem still persists. Resetting the phone and connecting it to ITunes to do an entire factory reset have been performed. Anyone have any ideas or solutions?
Water damage can mess up your phone for sure. Did you find any corrosion (white) spots in your phone ? On your motherboard perhaps? Maybe the connectors where you attach the screen to (and other connectors as well) have corrosion on it. I guess it still works as you can connect it to iTunes right?