The best way is too set ur date back all the way to 2012 at any date. Although it may corrupt or destroy some of ur game data in the game. But it should work if the card is expired and comes up with some red text.(before you change the date) I hope this works as it works for me. As well as if u want to play a normal game cardige then just set the date back. This mainly would work on the 3ds. But if you have a dsi then you have to go into the settings by taking out the r4 and any other inputs.Then I had just tampered around then when I turned it on and on the games worked. I hope it works but yeah it might not