hello if you show that logo of the photo, it seems that it is not GO520, rather they look like "Webfleet" or "Telematics"
that logo indicates that "Webfleet" or "Telematics" by microSD are packages containing Navcore and Map, they only support map with which they were bought, Europe or Truck example.
Link URL:
Only the registered members can see the Link URLs. Please Login OR Register.

if you have access to black screen white letters look at the serial number (you can put 2 first letters) and Navcore, but if you stay in that logo it seems that it does not access to load Navcore.
regards