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. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4617 Slightly lift the lower case near the vents and push it toward the rear of the computer to free the mounting tabs. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4618 Slightly lift the lower case near the vents and push it toward the rear of the computer to free the mounting tabs. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4618 Disconnect the battery connector by pulling it straight out of its socket. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4619 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. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4621 Lift the battery out of the Air. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4622 Remove the following two screws securing the speaker assembly to the upper case. One 3 mm Phillips. One 5.8 mm Phillips. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4627 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. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4628 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. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4628 Rotate the speaker assembly toward the center of the Air. Use a spudger to pry the speaker cable connector up off the audio board. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4629 Rotate the speaker assembly toward the center of the Air. Use a spudger to pry the speaker cable connector up off the audio board. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4629 Disconnect the port hatch ribbon cable from the logic board by pulling it straight up by its black pull tab. If necessary, pull the audio out ribbon cable off the adhesive securing it to the upper case. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4642 Disconnect the port hatch ribbon cable from the logic board by pulling it straight up by its black pull tab. If necessary, pull the audio out ribbon cable off the adhesive securing it to the upper case. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4642 Use the pointed end of a spudger to de-route the microphone cable from the hard drive bracket. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4643 Remove the following screws securing the hard drive to the upper case: Two 3.9 mm Phillips screws. One 4.7 mm Phillips screw. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4644 Use the tip of a spudger to remove the cosmetic screw cover to reveal the last remaining screw securing the hard drive. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4645 Remove the 4.7 mm Phillips screw securing the hard drive to the upper case. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4646 Lift the hard drive slightly and use a spudger to pry the audio cable connector up off the logic board. Peel the audio cable off the adhesive securing it to the upper case. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4647 Lift the hard drive slightly and use a spudger to pry the audio cable connector up off the logic board. Peel the audio cable off the adhesive securing it to the upper case. /Guide/Installing-MacBook-Air-Models-A1237-and-A1304-Audio-Cable/861/all#s4647