Here is a partially working Kitkat rom which works for UG007
Everything works except WiFi network.
If you have a USB Ethernet adapter then go ahead and try it.
note that you need to make sure what WiFi chip you have MTK or AP6210
My UG007 had the MTK chip and I can confirm WiFi is not working.
To flash this rom you will need to boot the device into bootloader mode which can be done in two ways.
If you have root on current rom you can install an application that can reboot into bootloader mode otherwise you will need to open the device an short the two pins of the missing reset button.
http://allminipc.com/forum/viewtopic.php?f=3&t=1191
Do you know of any Kitkat ROM for the UG007-II that has working WiFi?
Sent from my SPH-L720