Connecting camera/earpiece/Prx Sensor causes touch screen unresponsive
I have recently replaced a screen on a phone. Touch screen works fine BEFORE connecting the Earpiece/Proximity Sensor/Front Facing Cam. Upon connecting the Front Cam cable, the touch screen becomes unresponsive.
As a process of elimination I have tried two other screens along with 3 new front cam cables. I thought it may of been the first screen so I fit a new one to the phone to which the issue still persists. I then replaced the original front cam cable with one from Ebay. This caused the screen to go red and fade out to the Apple logo on boot, thus getting stuck in a bootloop. Got sent a replacement part, fitted it to the phone, get past the boot screen and onto the phone, however, I am back to square one where the touchscreen is unresponsive...
I am completely lost with this, is anyone able to shed any light on this for me?
Is this a good question?