This is a wonderful device that I hate to sell but I am linux only these days (retired) and my crap Windows box died, licensing a new Windows version is ridiculous, and after about 50 hours dedicated to trying to make it work on my linux box (learning all kinds of things) I give up. Shame on you Garmin.
I did a factory reset on it which you can see on the display. I recommend bringing a laptop with a copy of BaseCamp or whatever to update the OS and verify the functionality. (You can use my wifi.)