BUMP ...
Still have this unsolved issue. Anybody had some similar experience / solution ?
I did it with a VTwo Mini. Twice. The first time I had superglued it, so that one was toast. The other time I was able to remove the reversed magnet with another strong magnet. If you can pick up a rare earth magnet, that might do it for you.
The only other thing I can think of is to try to remove the cover magnet. If it comes out any more easily you could flip it as well and solve the problem that way.