Due to bad availability here, I built a tool myself, which is actually a 2-minute job. Simply take a piece of sheet metal (I tried aluminium but that's only good for 3-4 clips) and cut a hook in it, then bend it so you it fits below the trim but you have a good grip, and sand it smooth not to scratch anything. Slowly lead the hook along the underside of the trim until you feel a resistance, pull it and the trim should pop off the clip.
This one is still the unsanded aluminium one, but I think you should get the shape....