If you own an iPhone 6 or 6 Plus, I’m afraid that I’ve some bad news for you: Both of Apple’s 2014 smartphones are susceptible to a growing phenomenon called “touch disease”, wherein a grey flickering bar appears across the top of your display and your touchscreen becomes unresponsive.
The iFixit video above details the issue and how it can be fixed. It’s basically a perfect storm of manufacturing issues—inadequate protection of the Touch IC chips on the phones’ logic boards, combined with the rather bendy nature of the chassis. The good news is that for the iPhone 6s and 6s Plus Apple moved the Touch IC chip off of the logic board and onto the display assembly where there’s less flex. But if your 6-series iPhone gets afflicted with touch disease your only options are either a board-level repair or a new phone.
Jessa Jones of iPad Rehab, interviewed in the video, has repeatedly tried to educate iPhone owners on what she sees as a growing epidemic; she has since been banned from Apple’s Support Forums. As of this writing, Apple has not officially acknowledged the existence of touch disease.