Remove the two small screws from above where the keyboard was.

Flip the laptop over, and remove the two screws securing the fan cover, and then remove the two screws hidden by the cover.

Remove the medium-length screws.

Remove the three remaining longer screws.

Remove all access panels. Beware of the short screw hidden under the hard drive, and the medium screw under the processor access panel. Also remove the wireless antennas.