I believe that you are talking about the PIN NIP. It will be located on the back of a pamphlet. Like mine has a cut off picture of Mario and it will say "Subscribe to Nintendo power." at the bottom in the front of the pamphlet. but on the back you will see PIN NIP and then it will be something like this.
PIN:
NIP: XXX-XXXX-XXXX-XXX
If this is not what you ment. Please repost the question.
I've had this problem before with my DS the way to fix it is to blow into the part where you put the DS game and put it in if that does not work get a new DS, DS Lite, or DSI.
including the Nintendo ds lite and the Nintendo dsi, the number, id slightly above 100 million units
you have to put the ID number of the game in it
The game ID for a Nintendo DS game can be found on the cartridge. There will be a code, which is specific for each DS game.
on the back of the ds game there will be a few letters or numbers that is the game id
the id number is on the ds on the back
i think it is that little bit of writting on the bottom of the game chip
The game ID is ADAE-636791c0 and you can find out more at http://www.us.codejunkies.com
http://www.instructables.com/id/Replace-the-top-screen-of-a-Nintendo-DS-without-o/
On the front of the DS game card, near the bottom will be the game ID.
you should insert the game you want to enter and then write down the id code then you put the action replay back into the ds and at the top it says 'add new game' select it, then type in the name of the game and then the id number. that's what i do
Well, id think so. I dont have the DSI but ive heard it has the same Features as a DS or a DS lite.