MacBook Air Models A1237 and A1304 AirPort/Bluetooth Bracket Replacement

Remove ten Phillips screws securing the lower case to the MacBook Air:

Six 2.8 mm screws

Two 3.8 mm screws

Two 5.4 mm 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.

Charge it to 100%, and then keep charging it for at least 2 more hours. Then, unplug and use it normally to drain the battery. When you see the low battery warning, save your work, and keep your laptop on until it goes to sleep due to low battery. Wait at least 5 hours, then charge your laptop uninterrupted to 100%.

If you notice any unusual behavior or problems after installing your new battery, you may need to reset your MacBook's SMC.

Remove the two Phillips screws securing the AirPort/Bluetooth bracket to the upper case.

Lift the AirPort/Bluetooth bracket out of the upper case.