Save games not working on new firmware

Discussion in 'GBA - Flashing Hardware and Software' started by cba123, Mar 31, 2010.

  1. cba123

    cba123 Newbie

    Mar 31, 2010
    United States
    I have an M3DS Real, and a DS Lite. It was working fine, I upgraded to the latest firmware, Sakura 1.47 or something, and I can navigate and start new games, but if I have an existing save for a game the game refuses to load, the bottom screen says "Data format error." Any ideas?

    (I have my saves backed up from before upgrading, so I didn't lose everything)