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.
3. Take your device out of the SmartBoy and either plug your device into a computer or navigate through the device's file browser to the "HyperkinSmartboySerial" folder.
4. Open the "HyperkinSmartboySerial" folder and inside should be your save labeled "smartboy.sav".
5. MAKE A BACKUP OF THIS FILE BEFORE USING OR EDITING IT WITH ANY SAVE EDITORS.