The UG802 is a tiny, inexpensive mini PC with a Rockchip RK3066 dual core ARM Cortex-A9 processor. It looks like a USB flash drive, but it’s a fully functional little computer with an HDMI connector ...
Unzip the downloaded archive. You will find the ROM itself, drivers and the flash tool located in sub-folders. If you never flashed a Mediatek device on your computer ...