To be safe, reattach the laptop bottom cover, then flip the laptop over and open the screen so it lies flat.

Use the spudger and guitar picks around the edges of the palmrest to unhook it from the rest of the laptop.

Lift up the front edge of the palmrest, then carefully wiggle it loose from under the screen hinge, paying special attention to the touchpad's thin ribbon cable: you need to pull out underneath the black metal keyboard frame.