Why is my DS slot 1 not working?
My DS on some day in August 2010 i put Pokemon Diamond in to my DS and then it's not working! WHAT IS THE PROBLEM I'M DESPRATE!
If your NDS can no longer recognize a game card you may have a faulty Slot1 card reader on your DS. These can be replaced. As long as you know how to take the case apart and can solder its doable. Here is some more information. http://forums.afterdawn.com/thread_view....
But of course only if it does not recognize any game card. If it is just one it may be the game itself.
Just my 2cents and good luck