My DM820 doesn't boot the blue led is blinking, the Led screen doesn't show anything.
I've the tried access the rescue mode by switching the back power, holding front power button and turning back switch on, but I get the same result just blinking blue led.
The DM820 is also not sending any dhcp request so I can't access the rescue web interface.
Any ideas how recover the box?
Any help would be greatly appreciated.