iPhone 6S Plus Touch IC
Originally published in 2016. The devices, tools and prices described reflect that period; the diagnostic approach still applies. For current pricing and turnaround, see our price list.
By now, we've all heard about the touch IC disease that has plagued the iPhone 6 plus. How about the iPhone 6S and 6S Plus Touch IC? How come we haven't had any problems with touch IC disease on these newer iPhones? Well, the touch IC (Meson) on the 6S and 6S Plus is a newer chip (343S00014) that is built into the screen. It also serves an additional function, which is the 3D force touch. Now, every time the screen is replaced, the touch IC chip is also replaced. So there is no more touch IC disease in the newer iPhones.
Here are some pictures of the newer touch IC chip on the iphone 6s screen. The chip is located at the top of the back of the screen. Since this chip is located on the screen, it also means that if the force touch doesn't work after a screen replacement, then it's most likely the screen that is at fault. A new screen should fix most touch and force touch problems.


It looks like the chip is held onto the screen with some pretty strong epoxy, so soldering a new chip on is probably not a very feasible thing to do. At the time of writing, iPhone 6S screens sold for around $100-$130 and 6S Plus screens for around $160, which made replacing the chip uneconomical. Screen prices have fallen a long way since, so the conclusion holds even more strongly today. Replacing the screen would be faster, easier and cheaper. That effectively ended touch IC disease as the repair community knew it on these models.