Things You'll Need
Instructions
Insert your new game into the game slot of your Action Replay DS, and then insert the Action Replay DS device into the game slot of your DS.
Connect the small end of your Action Replay DS cable to the data port found on the device. Connect the USB end of the cable to an available USB port on your computer.
Turn on your DS. Select UPDATE in the Action Replay DS main menu..
Select the Action Replay DS icon on your computer to load your Action Replay program. Select AUTO-UPDATE to begin uploading the newest game codes to your Action Replay DS device. After the update is complete, the Action Replay DS device should have a list of codes prepared for your new game.