Nintendo DS Lite + Gameboy Advance SP GBA HandHeld Console

Original Nintendo DS Lite DSL GBA Slot Cover 2 Dust Cover FREE SHIPPING *USA* Pre-Owned: Nintendo $ Free shipping

I just rummaged through the many different DS cases I have, and have come to the following conclusion

nintendo ds gba slot Is there a way to enable the use of a Game Boy Advance cartridge on Slot-2 while playing a Nintendo DS game? It's usually seen on Generation

nintendo switch game card slot First of all, I kinda know how the gba slot works You put the gba file in the slot2 folder It worked before but not all the time