This document mainly introduces how to use the USB flash tool to install the OS image to Khadas SBC onboard eMMC.

Dowload the DriverAssitant,FlashTool and extract it to somewhere.

1. Run driver_install.exe to install USB drivers.
2. Double click Install Driver to install.
   
3. Double click Uninstall Driver to uninstall.
   

• Open AndroidTool.exe, click Upgrade Firmware–>Firmware to choose an image for Edge.
  
• Connect Edge and PC with a USB-C data-cable (Edge will power-on automatically).
• Put your board into Upgrade Mode.
• Your PC should have found your Edge device as a connected USB device, if you had correctly followed the instructions above.
  • Loader Mode:
    
  • Maskrom Mode:
    
• Now all you need to do is to click the Upgrade button of the tool and wait for upgrading to complete.