The good news is this typically resolves itself in short order. This will force the i Phone or i Pad to lock the screen, then wake the screen up again, then lock again, and wake the screen up again.
Repeat this several times in a row, waiting a few seconds in between each press.
When download a new i OS on your i Phone/i Pad over the air (directly in Settings), you will see "Verifying Update…" screen.
Generally, it takes few minutes to finish the verifying procedure.
(Make sure the shop you choose replaces the chips, and doesn’t just reflow them, warns Jessa.
Reflowing—or heating up the chips until the solder melts and reconnects to the joint—doesn’t fix the loss of touch in the long run.
Apple’s new i OS 10.3.3 update is surprisingly big but it shouldn’t take long to install it on your i Phone, i Pad, or i Pod touch.
A good microsolderer can replace those two Touch IC chips on the i Phone’s logic board for less than the price of a new phone.
Because every single month, more and more i Phone 6 and (especially) 6 Plus devices show up at her shop, Turns out, Jessa’s not alone.
Lots of repair pros are experiencing the same influx of faulty i Phones—most with flickering gray bars and all with glitchy touch functionality.
Before we start, be sure of the following: Solution 4.
Update to i OS 10 with i Tunes If the above solutions not working, you can try an alternative way to upgrade to i OS 10: upgrade with i Tunes on your PC or Mac computer.