Please Read Further if you are intelligent at video games and such:
My sister has a Nintendo 3Ds that once worked. It still works, however whenever you insert a game, it does not give you the option to play that game. We took out the SD card and placed it into another 3DS, to see if it would work. We figured out that the SD card is not the problem because we could play games. We cleaned the area that you put th games into and it isnt the games because we tried many. Des anybody know what is wrong? Thank you!