A strange feature/error will appear. If these symbols appear while driving, it cannot be turned off and the stopwatch, speed counter and odometer do not work. Heart rate shows, navigation works.
Please also note that two different symbols appear at different times, which is completely strange (photos taken when Garmin was lying on the sofa and I was watching what it would do)
In order for this thing to disappear, I have to turn off the Garmin for about 12 hours and after this operation it works fine until the next problem occurs - e.g. after three days
