Flip the laptop over so the bottom is facing up.

Use a Phillips #00 screwdriver to remove nine screws from the back case.

Insert an opening tool or spudger in the seam between the back case and the body of the laptop.

Work your way around the perimeter of the laptop and release the clips that secure the back case.

You will hear a clicking sound as the the clips are released and the back case is being removed.

Remove the back case.