Could not erase data

Do you have a memory card. You need one to play.

your friend destroyed your game, you need to start a new game, it will only work with an Action replay

WARNING: This will erase all saved game data!

As the game boots up, press "A,B,X,Y,L, and R" all at the same time to erase all saved game data. This resets the game to all defaults and it's like it's a brand new cartridge. Stinks you lose your save data but at least you get to play again.

it is corrupted whish means it wont work any more srry it happene to near enough everyone

you have to download v1.20 and put it on your r4 card then all the games will work try it

Quick, check every menu on the game. This is what happened to a friend who had Mario Kart. "Deleat data" was accadently selected when that person was trying to edit something. The data was lost. Check all menus. The wrong thing could have been selected. If you cannot find a way to deleat data, then make sure you never turned off the DS, DS light, DSi, or whatever when saving. If it was turned off when saving, then the following can happen: Nothing, Data Erase, or data destruction. Data destruction means the cartridge is ruined. That didn't happen to you, though. I am sorry, but you must start over.

Where did you buy this game? Is it from a reliable source? There's been known fake DS games that don't work. And usually the case is the game shows a message "can not access saved data. please turn of power and re-insert game". This is actually my first time with a case where it can't erase the data. Try contacting the previous owner.

is this a multi card or a normal game, if its a multi card for e.g R4 or Ncard you need to change the save format settings, but if its a normal game one of the teeth could be damaged or even a glitch, if thats it then you need to take the game back to where you bought it from (depending on how long you have had it between 6 to 8 months)

You must update your R4 system files. Download the latest version from R4.

Update your R4 system files