Hi!
I have a DS Lite, a R4DS with 1.18 English Firmware, an EZ-Flash 3 in 1 expansion pack (GBA version AKA "Phat", so that it would also fit my GBA SP and Gameboy Player).
I'm using Rudolph's GBA ExpLoader version 0.57 and I've succesfully copied one rom to the NOR memory (Mother 3 (J))...