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.