I have a Chinon FB-357A that just died. It reads 880k just fine but will not format anymore. Thinks all disks are write protected. Can anyone here fix these?
Did you try to clean the tiny switches near the front of the drive opening yet? If so and that didn't do the trick, Nishtek here has offered to fix drives before. I bet that little switch that determines if the write protect tab is in position or not just needs to be cleaned... contact cleaner and work it (make sure it goes up and down) for a little bit.