If the operating system of your computer is Windows 10, please follow the steps below to upgrade:
1.Press and hold the BD200 Discharger button and connect the BD200 to the computer via the USB cable.
2.Continue to hold the button, plug in a battery with voltage more than 7V to the BD200, wait 10 seconds, disconnect the 
BD200 USB cable, wait 1 second, then connect the USB cable to the discharger again.
3.Launch the upgrade tool BD200_Upgrade _FirmwareV1.04 (WIN10).exe
4.At this time, there will be Found the device appearing on the upgrade tool, release the button, and then click the 
UPGRADE button to upgrade.
