I have a N3DSXL. i tried to take the first case (the one with the two screws.) and it won't go off. i tried unscrewing it and i found the problem, one screw won't unscrew! i tried everything, an scissor, an knife, the tool, everything and it won't unscrew! My stylus is stuck inside and i cant get it out! My Micro SD too! and i don't have FBI anymore because i updated and can't use things like Ftpony or ftpbrony to change files and i don't have any computer near! Help?