Didn't worked for me. And the top suction cup is now broken where the anti-clamp and the suction cup unites. Even though, it was extermely difficult to keep the anti-clamp in place. The top suction cup will begin to move around and the anti-clamp will not stay vertical, going sideways or tilted. I ended up using a standard suction cup and finally could move forward. Also the anti-clamp gets very hot when used with a hair dryer, and touching it is almost impossible.

Yeah, the iOpener didn't work for me either.... ended up using a hair dryer and that worked. The iOpener was too warm to soften the glue in my case.

I could detach mine following these instructions. When inserting the paper clip you will feel a resistance like pushing a spring. In my case, pushing the paper clip in about 5 millimeters and holding it when I hear a "click" sound. Be sure to grab the tablet when you see it separating (or have at hand a plastic spudger or opening pick to avoid snapping into place again due to the very strong magnets present).