Locate the 2 screws securing the back plate and the front plate together. Then remove the 2 screws using a Torx TR10 screwdriver.

2 Torx TR10 15mm screws

Once screws are removed, pry on the plastic rings on the right side of the front plate using a plastic opening tool to detach it partially (see 2nd and 3rd picture that shows how to detach the right side)

Then do the same on the left side.

Then lift the front plate to detach the bottom of the front plate.