Replace the cable that connects the upper case, power button, trackpad, sleep sensor, and keyboard to the logic board compatible with the model A1150 MacBook Pro 15 inch laptop. Part #613-02547, 821-0404-B, 632-0369-B.
MacBook Pro 15" (Model A1150) Left I/O Board Cable
Replace a Left I/O Board Cable compatible with the model A1150 MacBook Pro 15" laptop. Fix the connection between the Left I/O Board and the Logic Board.