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.

For certain repairs (e.g. hard drive), disconnecting the battery connector is not necessary but it prevents any accidental shorting of electronics on the motherboard. If you do not disconnect the battery connector, please be careful as parts of the motherboard might be electrified.

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

It is useful to pry upward on both short sides of the connector to "walk" it out of its socket.

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

Pull the camera cable connector straight out of its socket on the logic board.

Pull the cable parallel to the face of the logic board toward the optical drive opening.

Use the flat end of a spudger to carefully pry the AirPort/Bluetooth ribbon cable up off its socket on the logic board.

Use the tip of a spudger to pry the four antenna connectors up from their sockets on the AirPort/Bluetooth board.

De-route all four antenna cables from their channels in the AirPort/Bluetooth housing.

De-route the camera cable from its channel in the AirPort/Bluetooth housing.