Chosen Solution
Hi, I have an iphone x that previously worked like a charm. I replaced the screen to an oem oled screen 3 months ago. Yesterday the screen would go black if I lightly pressed the upper right corner. Today the screen is completely black and does not respond to touch. The phone turns on and everything works, except the screen. I even restarted the phone and restored it via itunes but that didn’t fix the problem. Worth mentioning that I changed the housing a few days ago after which the phone worked like a charm until it suddenly didn’t. What could be the issue here?
Might be a dead screen or the connection isn’t secure on the logic board. Check the connections for the display as it may not be fully connected, if it is then the part may have failed.
[http://iPhone X Screen Replacement|iPhone X Screen Replacement]