An increasing number of iPhone users are reporting an issue with iPhone 6 and iPhone 6 Plus phones freezing up and becoming unresponsive to touch.
How can I tell if my phone has touch disease?
The most visible symptom is a flickering grey bar at the top of your screen. But the flickering screen isn't the only symptom. Frequently, users report that after the grey bar starts flickering, the screen becomes intermittently unresponsive across the entire display.
By far, the most commonly affected model is the iPhone 6 Plus that first went on sale in 2014, issue has been reported in the iPhone 6, iPhone 6S ,and iPhone 6S Plus as well, but at lower rates. This problem is directly related to bendgate.
At iTech iPhone Repair we can fix this for you, root of the problem lies with the touch ic chips on the motherboard.
Data Recovery and Board Repair
IC chip Replacement
Broken Connectors on Board