The backplate of the Easdry is not held in place with any screws, so removing it is easy.

Put a metal spudger between the backplate and the casing, next to one of the plastic protrusions keeping the lid in place.

There are in total eight positions where the backplate is held in place.

Tilt the spudger away from the backplate, slowly lifting it up. Repeat this multiple times for each side until the backplate is more or less on top of the casing.