RT-AC68U doesn't give IP, no GUI access or rescue mode

As title says...my 68U doesn't work besides powering on basically. No wifi, no ping response, recovery tool says it's not in rescue mode although power led is blinking slowly. Tried soft reset (reset 30 sec with power on) which doesn't change anything, no blinking leds, Hard reset (wps ,+ power on), power cycling, rescue mode (rrset button and power on), resetting NIC...

Any ideas appreciated as I'm about to scrap this router.. How come recovery tool says it's not in rescue mode? Thanks! //S