Having problems with VU SOLO

I'm having problems with my vu solo. It's just over a year old. Last night it turned it self off and now I'm not getting any display on TV. I've tried re flashing the image but it doesn't seem to be working.

Box is powering on with green light but it doesn't flash when installing image from USB.

any help is appreciated.

Update

I'm getting one step further, I'm able to flash image from USB, After the reboot I'm not getting any display on TV, I've tried SCART and with another HDMI.

I've tried the image that It had installed on it before it crashed. Vix 2.3. I think the box keeps rebooting it self after 5 min or so. I had this problem with some images but vix 2.3 normally worked OK.

I will keep trying other images and see what happens.