Instructions
Reset your Nintendo DS system. The software of the Action Replay device and your Nintendo DS does not always cooperate flawlessly, which can lead to a handful of errors, including problems when trying to retrieve a saved game file that has been backed up to the device.
Remove and replace the Action Replay card and any game cartridges from your Nintendo DS. Cards and cartridges can occasionally become dislodged, which can cause the device to fail when attempting to retrieve saved data that has been backed up to the Action Replay card.
Delete the games currently backed up to your Action Replay card. This will cause you to lose any data that is not backed up in another location, but, if you want to use the card again, sometimes the only way to salvage the card is delete the data currently on it.