Garmin Edge 520 – Cycling Adventures with Brian Toone
Garmin Edge 520 firmware upgrade - YouTube
After update get "Ride in Progress" screen - Edge 520/520 Plus - Cycling - Garmin Forums
Shane Miller 🦙 on Twitter: "The Garmin Edge 520 which is a few weeks shy of turning five years old gets a firmware update this week. There's a lot of them still