Odroid-X2 not booting problem

[riklaunim]

Hi

I just got the Odroid-X2 board. I'm trying to boot the ArchlinuxARM from SD card and I have a problem with it. After presing the power button D6 LED starts to blink and doesn't go to continous glowing - it can't boot. I don't have the UART module so I can't check it. I've tested two SD cards with the same result.