Sadly, I got the same problem except I'm too young to have a son so it was actually DSOrganize I think which messed up my TF card, then I got angry coz my pc wouldn't scan it. So I ended up with a broken TF card (me) and I just ordered a new 1 from Ebay. 2nd time this happend, 1st happened coz i got scammed nto buying a fake sandisk made in "korea".