Things You'll Need
Instructions
Purchase a Nintendo Gameboy Advance Flash Linker. Look at the resource link "GBXEMU" for some ideas on an Advance Flash Linker.
Insert your Advance Flash Linker cartridge into your GameBoy Advance.
Plug the small side of the Linker USB cable into the USB port on the side of the Game Boy Advance. Insert the other end of the USB cable into an available USB port on your computer.
Install Little Writer to your computer. Navigate to Gameboy Advance and look under "Download" for "LittleWriter Software - final v.1.8.3." Click on it to save Little Writer to your computer.
Open the program. After you install Little Writer, open the program and then minimize the Little Writer window.
Choose a game to download. Navigate to CoolRom and choose the GameBoy Advance game ROM you would like to download. Save the ROM to your computer.
Restore the Little Writer window and select the "Erase" to format the card. Select the "Flash" icon after you have formatted the card. If Little Writer does not find a card, a dialog box will prompt you to select your Flash card. Select "128 MB Flash Card."
Select either "Multiple GBA ROMS" or "Single GBA ROMS" to load either multiple GameBoy Advance roms onto the same card or a single game write.
Open the ROM file. Select "Load" and choose the GameBoy Advance game ROM you have saved on your computer. Press "Open" to open the ROM file. Little Writer will read the GameBoy Advance ROM file. You can also view the log of data in the Little Writer ROM menu.
Select "Flash" to write the ROM you have loaded to your GameBoy Advance cartridge.