1. To add games, take the micro SD card on the Retrobit Gaming Console™, and insert it into your computer, you will need a microSD card reader.
2. Do not format the card. A pop-up will appear that says, "There's a problem with this device, scan and fix it. " Ignore it, as if you reformat the card, you will need to replace the system.
3. You will need to copy your ROM files over to the SD card and put them into the appropriate folder that matches the system that the game belongs to. You can download ROM files online.
4. Once you have downloaded the ROMs you choose to add to your device, copy your ROM files to the SD card into the appropriate folder that matches the system to which the game belongs. In your case, you will select the ROMS folder GBA.
5. Safely eject the SD card and add it to your device. Remember to reset the device.
6. Afterwards, load the game.