i have GNUBOY emulator in my dingoo a320. i have .gb and .gbc roms in my GB file in the Games file.
in the actual dingoo these games do not show up, but they do show up when i plug the dingoo into my laptop.
the same goes for my lynx games. i have LynGOO emulator in the games file and the lynxboot.img in the games file as well. yet no games appear in the lynx folder.