I have run into the same problem. My brand new DSi shows 1.03U and I have not upgraded my firmware. I ran my r4i for a day then the same error message came up after recognizing the card. Now I am trying the Ak2i card. Same problem. How did you guys sort out this problem?
Also I am not sure what are the folders that I need to save on the Micro SD and where do the games go. In R4i, I know there needs to be 4 folders: Games (load the games in this folder), Moonshl2, r4iMenu and R4.dat. I tried to download the folders but couldn't. I get a bunch of zipped folders. Should I copy them onto the SD card?
I am really desperate now as my son is really looking forward to playing some games and I am stuck with this issue.
Aug 27, 2009. Canada.