1.Nintendo's start screen(the one with the health warning I think) comes up. 2.DSTT starts loading but has a ''loading circle''(quite like the one you see when you watch Youtube vids) but stays like that forever. Screens are blank. Edit: The loading circle is small and is in the bottom right corner. Is blue. The SD card used that caused this loading problem had worked before. When taking out that SD card and putting in another one, it loaded perfectly. What's causing this problem and how can I solve it?