Action Replay

The most likely reason that happened was while the action replay was saving you turned your game off or the battery was low and the game turned off. If you look in the instruction packet it warns you never to try to save or load codes when your battery is low.Try resetting the hardware by following these steps:

1/ With the console powered off, hold A+B.

2/ Power up the console while still holding A+B.

3/ As soon as the Nintendo screen is displayed, before our screen stating this product is not endorsed by Nintendo, press and hold Start and Select while keeping hold of A+B.

4/ Continue to hold these buttons until the Main Action Replay screen is displayed, then release. Your product is reset, and will accept codes once more.