How do u start a new game on pokemon diamond if there is already a saved file?

i just need to know how to start a new game and erase the old file on pokemon diamond.How do u start a new game on pokemon diamond if there is already a saved file?
Once you start yuor game up to the menu screen you press Up+select+B button and it should restart your file again.



hope it helps
hold select, up and b

and i dont see a reason to restart the game anyway O_o

since if your team isnt good just make a new one in the game by using the vs. seeker to train the new ones you want in your teamHow do u start a new game on pokemon diamond if there is already a saved file?
Press B, Select and R same time, after this, your new game will automatically start.
you have to press up,select, and b at the same time on the screen where dialga is shownHow do u start a new game on pokemon diamond if there is already a saved file?
Hold up, select and B on the title screen.