Turn the laptop upside down with the front toward you.

Locate and remove seven Torx T8 2.5×7.0 screws.

The screws may have rubber caps over them. If so remove with a spudger or similar tool.

Locate and remove one Philips M2.0×5.0 screw.

Turn the laptop right-side up with the front toward you.

Release the three ZIF connectors and disconnect the ribbon cables.

This cable is routed over the top cover and needs to be disconnected at one end to allow the top cover to be removed.

Remove the RTC battery from its holder