I used three magnet pairs to hold my cover on. At a high level you put two across from each other (they are the pivot point) and one at the end. The other end is open so you can press the cover in. Apparently when I was doing something else I must have pressed down on that cover and broke the end one off inside. The funny thing is it still works, the magnet holds it like a latch. I'll fix this, but always cool to see something like this work out. Sorry for the crappy music. I was on a conf call at the time I recorded this, better than boring work talk: