Not booting

Hello 

I bought a LattePanda without windows - the 79 dollar option 2GB/32GB

https://www.dfrobot.com/index.php?route= ... ct_id=1498

I have now tried 3 different power supplies and 4 different cables. Also tried powering directly from a Lab supply into the 5V header. 

The board initializes when power is connected (blue Led blinking, red LED on), and after that is complete, both LED´s turn off. 

When I hit the power button, the Red LED turns on and stays solid. Nothing more happens - I dont get a splash screen or any other sign of life. I am connected via HDMI to a Sony TV, but I also tried a HDMI field monitor. Screen stays black and I dont get any signs of it booting.

I would expect the LattePanda to at least boot into BIOS, and allow me to connect a flash drive to install Linux or Windows10....seems like there is something wrong with the BIOS or something.

What could be the trouble....? Any advice?

Thanks