When I was saving data on my action replay I accidentaly turned the ds..

This should help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

For people whos action replay says theres not enough memory
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.
For If Your PC Doesnt Recognize Your Action Replay
When the Action Replay application loads, there�s a mouse symbol on the main menu which activates USB mode. Make sure you�ve allowed the application to load to this stage. Also, make sure your console has been shown as �installed� within the device manager. To access device manger, right-click on the �My Computer� icon, select Properties, select Hardware and select Device Manager. If the device is not installed, it�s shown with a yellow question or exclamation mark.

For If You Have UK Games And USA Games And Think You Need Two Action Replays
Using the PC application which came with the Action Replay DS, you can drag and drop any codes from any region onto your cartridge. Just find the games you want, and download them. The codes regions have to match your region of game (eg. US code for a US game), but you can combine UK and US codes on the same Action Replay DS cartridge without difficulty. You most definitely do not need two cheat carts!
I've seen a few people say that when they put in his or her game, the ARDS says "Unknown Game". This means that the game and it's codes are not registered in the ARDS. There is a simple fix to that. Here's how.

First off, run the Action Replay Code Manager. Make sure you have your ARDS inside your DS and hooked up to your computer's USB port.

Now turn on your DS. The ARDS cartridge should strat up and automatically go to the update screen. Once it does this a list of games will appear on the left in the Code Manager. These games are the ones that are on your ARDS. If your game does not appear, that menas you have to add it. In which case, unhook the ARDS and go back to the main menu on the ARDS cartridge.

Now hit the asterik button and you should be brought to the list of games on your ARDS. Then select " at the top and add the name of your game. (Note: Game names are not case sensitive, the next thing you enter is)

Then it asks for the Game ID for the game. If that is put in, then your ARDS wil read the game you put in if it is right. You can get the Game ID for your games at codejunkies.com. But for your convenience, I will post the Game ID here. Game ID for Diamond: ADAE-636791c0
Game ID for Pearl: APAE-31D0AFDE

Now once that is entered you will be brought to the code menu for that game. Now you have an option, either manually enter codes (some are very long as you can see) or enter them through the code manager. I'll tell you how to enter them through the code manager.

First return to the home menu on your ARDS. Then rehook your ARDS to the computer's USB port and you'll see the list again on the code manager. Now you can't add codes inside the list of the games on the ARDS already, so drag the game you want to add codes to into one of your codelists on your "My Codelists" section on the manager. Then right click the game and hit add new cheat. Then simply highlight the code you want to add here and paste it in the "Cheat Codes" section of the "Cheat Details" that comes up on your manager when you hit "Add New Cheat". Make sure there are no spaces at the end of a code, otherwise the code cannot be added.

Now drag the game onto your current ARDS codelist. It will say "This game already exists, do you wish to overwrite it?" Answer yes and it will rewrite the game to your ARDS with the code(s) you have added.

And to do all that you need to make sure you have the latets software upgrade for the ARDS cartridge. You can do that by hitting the "Software Upgrade" button in the upper right part of the code manager. (The DS cartridge) Make sure your ARDS is hooked up to do so. Once it's up to date you should be able to do all of this.

You're welcome