How To Fix Dead Spots On Iphone Screen. Either the digitizer connector isnt properly connected or you need to clean the connectors on the maimboard with some alcohol. I had that stretching horizontally across the middle of my iPhone X screen.

Scroll down all the way to Erase This Device. Went away after the official iOS12 release. These two method will help you definetly if it doesnt work then your screen might b.
Any warranty issues should be covered at not cost to you other than shipping fees.
You will then need to replace the screen. Remove any cases or screen. Schedule an Appointment to get your Apple device serviced or repaired today. Tap on it and erase iPhone XR to factory defaults deleting all data and settings from the device including the passcode.
