Remove the following 10 screws securing the lower case to the Air:

• Six 2.8 mm Phillips screws.
• Two 3.8 mm Phillips screws.
• Two 5.4 mm Phillips screws.

Slightly lift the lower case near the vents and push it toward the rear of the computer to free the mounting tabs.

Disconnect the battery connector by pulling it straight out of its socket.

Remove the following nine screws securing the battery to the Air:

• Four 2.9 mm Phillips.
• Four 3.8 mm Phillips.
• One 7.2 mm Phillips.

Lift the battery out of the Air.

Remove the following two screws securing the speaker assembly to the upper case.

• One 3 mm Phillips.
• One 5.8 mm Phillips.

Use a spudger to lift the audio-out connector board off the adhesive that secures it to the hard drive bracket.

Disconnect the audio out connector from its socket.

Rotate the speaker assembly toward the center of the Air.

Use a spudger to pry the speaker cable connector up off the audio board.

Use the pointed end of a spudger to pry the speaker connector up off the audio board.

Insert the pointed end of a spudger into the gap around the audio board to pry it up off the adhesive securing it to the speaker housing.

Disconnect the audio out cable by pulling its connector straight away from the socket on the audio board.