Backup ROMs are illegal, and it is against the rules to post about them here (I know from experience. Hint: Don't ask for copywritten material here, unless you want Mr. Biggs to yell at you). If you want homebrew, that is what this site is about. I believe the R4 you just need to but them on the card and put it in the DS. If it requires more, then it should come with documentation to help you.
Bookmarks