Step 10
Pull the CD-ROM drive tray partly out.
Remove the silver Phillips screw from the plastic casing.
Step 11
Turn the computer over.
Remove the three Phillips screws.
Step 12
This is a diagram of the trackpad ribbon clamp connector you will disconnect in the next step.
1) With your fingernails, grasp the locking bar on either side and pull up a small amount (about 1/16" or 2 mm).
2) After disengaging the locking bar, slide the cable out of the connector.