I would like to clean up my O3DS inside-out, it's 5+ years old and a lot of dirt has gathered in between the hinges, under the top screen's cover, etc. However, three of the screws on the back cover come out, but one of them won't budge. Luckily I was able to replace the battery as it was getting quite old too, because it was on the opposite side of the stuck screw (it's on the far right). I was thinking of just cracking the back cover with force, then possibly buying a replacement online, but I haven't found any replacement parts for the O3DS online. Sending it to Nintendo isn't a good idea either. The screws are very tiny, so I don't have many options. Do you have any ideas?