Wedge the flat-end of a metal spudger between the base of the device and the keyboard assembly while applying downward pressure. Slide the spudger across the entirety of the gap until the two components separate.

There will be audible popping sounds caused by the separation of the base of the device and the keyboard assembly as you wedge them apart.

Do not insert the spudger into the gap deeper than necessary as it may snag on the internal components.