Hopefully just delete that cheat. In worse scenarios it can delete more than one game or even all of your codes. If that does happen you will have to transfer all your codes back on to it from the PC. If the cheat has survived, I wouldn't use it again as it could mess up your game!
Crashed (maybe)
take out the replay when the Nintendo DS is turned off and blow in the game cartridge then put it in turn the Nintendo DS on and don't push the action replay in again while the Nintendo DSis on.
An action replay has to be in the DS, gameboy, whatever before it is turned on. Once the device is turned on the action replay "game" will start up. At this point it wil tell you to take the action replay out and replace it with the game. From there you can select the cheats you want to use in the game and start the game with the active cheats. Some cheats like walk through walls may require you to hold a button such as R whilst walking into a wall.
there is an event for it or use an action replay but do get an action replay cuse once i had an actoin replay and my ds turned of and it woudnt work but if you realy want i dont mind just be careful hope i helped alot nick
screen froze
If there are no games on the action replay, it broke and needs to be fixed online, these kind of things always happen to action replays, it's design to only last a short time.
The action replay cheat system does not get installed on your DS. When you insert it and turn your DS on, it will load up automatically. Then, you take out the Action Replay (without turning off your DS), and insert the Game of your choice. You can then select cheats at your leisure. To add new cheats, you can either connect your Action replay to the computer (it must be inserted in your DS and your DS must be turned on), then by using the Action Replay software, you can drag and drop cheats into your DS. You can also add cheats by manually entering them into your Action replay. However, this is not recommended as it may take a long time to add large amounts od cheats.
It depends really, if you were on action replay Europe series 2 i guess mine took about half an hour, but i need the answer to how to restore games because i did a code it turns off, turned it back on, they were all gone!!!!!!
Maybe you turned on too many cheats, but is that's not the case, then turn all action replay off reset it and try again.
it will delet all things done sence last save
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You might have to many codes turned on at once. That happened to me with my SoulSilver game.