R100:https://www.bigbigwon.com/product/adapter/r100/tutorial/
R100pro :
https://www.bigbigwon.com/product/adapter/r100pro/tutorial/
1. Press and hold the button on the R100 adapter, and then insert it into
the USB port of the PC. The indicator light is always on means it enters
the update mode
2. Open the R100 disk of the PC
3: Drag and drop the "firmware" file in the update package to the R100
disk , and the following dialog box will pop up at this time