Just got an ez flash omega. I can put games on it, they are detected, the gb and gbc games play perfectly. I cannot play gba games at all though. They either won't load at all or freeze after a minute or two. I have played the roms on a pc emulator and they work fine. Im using a sandisk ultra 32 micro sd and It is formatted to fat 32. I'm unsure as to what the problem is. My gameboy is old but it ran a cartridge of donkey kong country 3 perfectly as well. It has a problem where the battery doesn't hold a charge so it has to be plugged in to be used. I don't think it's effecting the ez flash though. Any help would be greatly appreciated.