Years back, there was a CDROM drive I really needed to work at the moment, but it was jammed shut. I could hear it trying to open, and failing. I reasoned that

Years back, there was a CDROM drive I really needed to work at the moment, but it was jammed shut. I could hear it trying to open, and failing. I reasoned that the motor holding it shut had mostly failed in some way, but could still exert some force. So I popped the cover off the drive, took out the magnet that holds it shut, cooked it on a gas stove for a few seconds, and put it back in. Th Curie temperature for a neodymium magnet is a few hundred of degrees, but practically speaking, they will lose a lot of magnetism even at lower temperatures. Popped it back in and the drive worked for another year or so.