A few weeks ago i tried to put some games onto my R4i revolution for ds (NDSI/NDSL/NDS) when i put Back into my dsi xl it said nothing was inserted. other game carts still work though. can anyone help?
If it's the R4 that is not detected, and not a "?MENU" error. Then maybe try cleaning the R4 and the cartridge port with cotton swab, or fiddle with it to make sure it properly make contact. But reading what you said, maybe your cartridge is dead.