The MacBook Pro Retina Early 2015 (13" A1502 or 15" A1398) uses a dedicated flex cable connecting the logic board to the Force Touch trackpad module.
Over time, this cable may degrade, bend, or oxidize — leading to trackpad not responding, click issues, erratic cursor movement, or multitouch failure.
Typical signs include non-functional clicks, pointer freeze, missing haptic feedback, or ghost inputs when the device is idle.
Replacing the flex cable restores full functionality without needing to replace the entire trackpad unit, provided the touch module is still intact.
The process takes 30–60 minutes, does not require full disassembly of the logic board, and includes 1–3 months warranty plus optional diagnostics for other related faults.