I want to replace a powerpoint plate as it is discoloured (removing it for painting that wall) but it appears it has been firmly grounted into the tiles and also painted into the wall. Attempts to pop it off have only resulted in me gouging holes into the plasterboard as you can see. So looking for guidance as to how I can safely remove the plate (the gouging is easily rectified). I'm thinking the round dots are possibly covering screws but finding them also difficult to remove. I've used a stanley knife around the wall side edges to cut into the paint to start but nervous about safest way to break the grout hold on the tile side. Any help appreciated.
