Yes my R4i blue card is working fine. I have a few DS roms on it. So sometimes i play the DS games on my 3ds.
- backup everything on to your computer from your DS flashcart
- you should format your micro SD card of the DS flashcart
- put everything back expect the NDS exploit
- play a NDS game. (so it cleans your DS profile)
- put a clean NDS exploit file which runs the exploit for the launcher.dat
because i think your NDS file is corrupted.









