I just got my EZ Flash 3 in 1 today, to use with my R4. I'm using Rudolph's latest GBA ExpLoader 057, and set everything up as required to no avail. When I run the GBA ExpLoader it says: "Slot 2 expansion pack not found, Please redo from start." I've searched through the forums and google, with no conclusion. I tried the rumble function which does work. Also I reformatted my card thinking that it couldn’t hurt to start fresh, but the GBA ExpLoader just doesn’t seem to work. Any advice would be very welcome.