Use a spudger to rotate the MagSafe board up and out of its housing. It may be helpful to pull the lower case out slightly to provide additional clearance.

Lift the left speaker out of its housing and set it to the side.

Remove the following 3 screws:

• Two 7.5 mm Phillips from either end of the left I/O frame.

• One 9 mm Phillips from the middle of the left I/O frame.

Remove the small black plastic spacer at the bottom of the left I/O frame.