If you drop or bend your iPhone, this chip could get damaged or partially break off of the motherboard. This is particularly common in the iPhone 6 Plus (6+), and causes problems like touch function malfunctions or gray stripes at the upper edge of the screen. Two ICs are involved in this function. You have to check both.
It’s also known as: Touch IC; touchscreen IC; controller 343S0694; TI 343S0694; U2401; Meson A1; digitizer IC; CSP design
This repair requires advanced knowledge of SMD soldering. Please contact us if you don’t want to do it yourself. Our technicians would be happy to help.