Hacking m3ds real and g6 flash 3in1

[mimic88]

Hi guys,

I was wondering is it possible to use old g6flash 3in1 (slot2) as a gba expansion for m3ds real/zero. I managed to launch game with m3zero slot1 + g6flash in slot 2, but it won't save (it saves normal with gba expansion) .
Are there any files I should put on g6 ?

Thanks