i have a several groove 52hpn router board . one of them booting without a problem but Ethernet port doesn't work properly i cant access the router board via winbox or any thing else . first i test the device by netinstall by following tips in website : adress is : https://wiki.mikrotik.com/wiki/Manual:Netinstall
boot the routerboard in etherboot and nothing show on netinstall (doing all steps carefully) . so i capture a film for you my friends in attachment to see the LED activity and beeper after i have applied power(i cant attach video !? what i can to do to show video)
i have a another question .i take a picture in attach and in white circle there multiple pads . what are those for ? are they using for serial port ?