After contacts with various people at Garmin, Garmin clearly shows that customers who have problems with products, Edge 520 Plus, after the warranty period has passed are completely uninteresting to them. No spare parts are available, even if I am prepared to pay - in other words, Garmin sees three years as an appropriate life cycle for its products, after which they disclaim all responsibility. Garmin offers a 15% discount if I want to order a new equivalent product - wishful thinking - Bye Bye Garmin, forever!