Well this sucks... I appear to be stuck with the same issue as everyone else in this thread.
I mounted media volume in toolbox and used windows for format the drive. When I mounted it again the data was all still there...
I'm sad to say I trashed mine. Couldn't fix it. And didn't want to sell for parts because the memory had my personal data. Still haven't replaced the tablet because I can't find a better model for the price.
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