We recommend using a plastic spudger to prevent damage to your controller. However, using a metal spudger, as shown in the picture, makes the work easier.

Hold firmly the controller, place the spudger into the top seam of the controller and carefully work all the way to the bottom.

Pry the side of handle away from the controller by moving the spudger back and forth around the side handle's seam.

Repeat this process for both side handles.