Most DS users have encounter this problem which is they must switch the on and off button in order to play another game or appliction. We have explore a method which allow you to go back to the main menu without the need to OFF your NDS. It is very simple and all you need to do is to press the LEFT AND RIGHT BUTTON TOGETHER WITH THE A, B, X, Y. This will bring you back to the main menu and it works for DS  R4 Flash Card. Currently, this method does not work for DSTT card.