Problem with Luminous Arc 2 in M3 Mini SD

At first I had a white screen. Then I arm7 fixed it and now it get to a screen but then says: "The save data could not be accessed. Please turn the power OFF and reinsert the DS Card." Anyone can help me? I've tried many configurations.

Re: Problem with Luminous Arc in M3 Mini SDMaybe a reformat, and firmware upgrade might help.

By mistake I forgot to type the "2". And yes I have the firmware updated.