This method of backing up your GB/GBC cartridges saves involves a device called the Hyperkin SmartBoy. This is a relatively inexpensive device that allows you to play your cartridge Gameboy and Gameboy Color games on your Android Smart Phone. Because of this, the SmartBoy can be used to Backup your saves from your GB/GBC games.
1. Install the SmartBoy app from the Google Play store and plug your device into the SmartBoy. If the SmartBoy app does not automatically open, open the app manually