Align the screw holes on the hard-drive bracket with the screw holes on the hard drive.

Replace the screws that secure the hard-drive bracket to the hard drive

Connect the interposer to the hard-drive assembly

Align the screw holes on the hard-drive assembly with the screw holes on the palm-rest assembly

Replace the screws that secure the hard-drive assembly to the palm-rest assembly.

Slide the hard-drive cable into the system-board connector and close the latch to secure the cable.