Chosen Solution
The digitizer stopped working on one side of my XR so I replaced it with one from this site. Since doing that I’ve noticed it freaks out occasionally with lots of flickering and and sometimes ghost touches. I realized it does it whenever I’m on LTE and not Wifi. I have disconnected and reconnected the battery, digitizer and lcd connections several times with no luck. Any ideas?
Did you disconnect the battery before you unhooked the connections for the screen? The first thing I would recommend is taking off the screen but first disconnect the battery. Get a magnifying glass and check the connections for damage and clean the connectors with a qtip and alcohol. Brush the connectors with a soft brush to get rid of any residue and fibers. Also check the connections on the screen and make sure they are in good condition. Hook it back up and see if this cures you problem. If that doesn’t fix it there is a small chance that you have a defective screen. If you didn’t remove the battery connector before the repair you might have caused an issue with a resistor on the motherboard. It’s hard to say without actually looking at it. I hope this helps.
It is because you did not transfer all of the black tapes from the original screen to the new one. Parts of the screen will then make a connection with the aluminum frame and cause home buttons pressing themselves, ghost touch, and loads of other problems.