Groove 52Hpn no Ethernet

Hi all , so i got a Groove 52hpn that im trying to fix. It does seem to boot fine since it beeps once then beeps twice. But i cannot access it from winbox as it does not show it, cant ping default ip 192.168.88.1 , have tried resetting to factory defaults and still not working.Netinstall doesnt even show it.

Is there a way to access it via serial? Since i see on the motherboard it looks like there are serial/UART pads on there