Step 16
Loosen the trackpad connector by pulling the top piece up slightly, freeing the trackpad ribbon.
Slide the orange trackpad ribbon out of the connector.
Step 17
Use a straightened paperclip to open the optical drive tray, and pull it out about halfway.
Step 18
Don't lift the upper case off the computer yet as there are still two cables left to disconnect.
Lift the upper case from the left side and use your other hand to pull out the right side in order to clear the power receptacle.