Place the laptop so the bottom is facing upwards.

Remove the two 8 mm screws on the back of the laptop using a T3 Torx screwdriver.

Remove the three 5 mm screws on the back of the laptop using a T3 Torx screwdriver.

Remove the six 4 mm screws on the back of the laptop using a T3 Torx screwdriver.

Remove the single 3 mm base screw inside the battery case using a T3 Torx screwdriver.