I have both an Acekard 2.1 and an EZ-Flash 3in1, and I wondering just exactly what compatibility these two have. I have gbaexploader and have copied various games to NOR and PSRAM or w/e it is. The thing is, is that the NOR'ed game are playable the official DS bios, but the acekard doesn't recognize it. All it does is display "there is no device in slot2". I have tried both the official and AKAIO to no avail. Also, in AKAIO's 3in1 option on the system options menu, it says that no device is found. The rumble works when I change the setting in gbaexploader, and the games run fine, however the opera browser doesn't work with a clean copy, a patched copy, or selecting expansion pak in gbaexploader.