Why is the touch screen so erratic after several replacements?
I have had this problem with several different iPhone 5Cs.
None of the iPhones are liquid damaged but i have had a few where the screen is just erratic a few hours after changing it. I have tried screens which I know 100% worked before but the customer still comes back and says that the screen is erratic. I'm tearing my hair out! Is it a software issue?