My Garmin 530 works fine when I am not using the turn by turn feature when following a route. When I start using the routes After around 90 minutes the Garmin switches off and then turns back on and the route has to re-calculate. It happened around 3 times in my 5 hour ride today. It’s very frustrating and hoping it something that can be fixed. It’s around 9 months old so still in warranty if need to send back.
Thanks