Can anyone be more specific and "Press Y"? Do you mean press Y on startup? Nothing happens when I try that...

no slot 1 flash card can play gba roms, the G6 real included, the normal G6 can play both ds and gba roms.So not during the black screen saying loading?
It still isn't working, all I am changing is the light setting.
I have the G6 Real by the way, if that makes a difference.