Just got my Vu+ Duo yesterday and i too had problems flashing image with usb. It would flash. While flashing my tv screen was blank (connected via HDMI) so was relying on duo screen (maybe thats standard) when finished, id remove usb and power off/on at back switch. When rebooting i would get as far as starting enigma 2 and freeze. Tried a few times and gave up on usb. Flashed fine with serial cable.
Just like to know what i was doing wrong with usb flash?
Great image btw. Had been used to dream elite on dreambox. After a few hours i much prefer VIX. Well done guys...
One niggle i have, the info button (coloured far left, cannot remember colour, red i think) when i press this for info, the info stays until i press exit. It would be nice if it timed out or a second press of coloured button removed info. Maybe this function is there but i have not found it yet. Still on learning curve...