by fredderf » Sun Sep 17, 2017 11:50 am
Yes, the navcore is the operating system.
Providing your device is older than September 2012 or whose files & folders can be accessed through Windows Explorer, then yes you can update it with maps which can be downloaded from here.
What model do you have?
Edit: You have a Go 720 and have already downloaded Central and Eastern Europe 995 8507 and are having problems with activation
It turns out that I was wasting my time answering your question as you're already discussing it on another forum...thanks a lot!