Before proceeding, unplug and power down your ThinkPad. Close the display and lay it on a soft surface, top-side down.

Use a Size 0 Philips screwdriver to loosen the nine screws on the bottom of the case. They will not come out entirely, but you will feel when they are loose enough.

You will need to remove the rubber pads from the bottom three screws using a pair of tweezers.