Things You'll Need
Instructions
Connect the small end of your Action Replay USB cable to the data port on your Action Replay device. Connect the USB end of the cord to an available USB port on your computer. Insert your Action Replay device into the game slot on your GBA.
Turn your GBA on while holding the "L" button. This will place the Action Replay device in USB mode.
Activate the Action Replay program on your computer. Select the "Start" option on your computer desktop, then select the "Programs" option. Select the "Datel" option in the Programs menu, then select the "AR Max Drive" option.
Select the "Action Replay GBX" option in the Action Replay program's main menu.
Select the game you wish to update codes for. This is found in the left window. Select the green arrow pointing to the right, located in the middle of the screen, to transfer codes. Repeat this step with any other GBA you wish to update.