MacBook Pro 15" Unibody Mid 2012 Subwoofer & Right Speaker Replacement

Remove the following ten screws securing the lower case to the upper case:

Three 13.5 mm (14.1 mm) Phillips screws.

Seven 3 mm Phillips screws.

Using both hands, lift the lower case near the vent to pop it off two clips securing it to the upper case.

Remove the lower case and set it aside.

Use the edge of a spudger to pry the battery connector upwards from its socket on the logic board.

Bend the battery cable slightly away from its socket on the logic board so it does not accidentally connect itself while you work.

Disconnect the camera cable connector from its socket on the logic board.

Use the flat end of a spudger to pry the AirPort/Bluetooth connector up from its socket on the logic board.

Use the flat end of a spudger to pry the optical drive connector up from its socket on the logic board.

Remove following two screws:

One 8.6 mm Phillips screw

One 3.9 mm Phillips screw

Carefully rotate the AirPort/Bluetooth board housing (with AirPort/Antenna cables still attached) out of the lower case.

Remove the three 3.5 mm T6 Torx screws securing the optical drive to the upper case.

Lift the optical drive near its connector and pull it away from the upper case to remove it from the computer.

Use the flat end of a spudger to pry the hard drive/IR sensor cable connector up off the logic board.

Peel the hard drive cable up from the channel within the subwoofer and right speaker.

Using the flat end of a spudger, pry the subwoofer connector straight up off the logic board.

Remove the following six screws securing the subwoofer and right speaker to the upper case:

Two 3.2 mm Phillips screws.

Two 12.3 mm Phillips screws.

One 2.5 mm Phillips screw.

One 8.3 mm Phillips screw.

Use the flat end of a spudger to dislodge the right speaker from its recess in the upper case.

Lift the subwoofer and right speaker assembly out of the upper case.