Garmin IQ Tip:
Just updated the firmware?
Give your watch 2 restarts after firmware update, yes two! Also restart the application that installed the firmware update, too.
Why restart? A firmware update usually contains many different updates (gps, bluetooth, ANT+, Wifi, and all the other sensor hardware, too. To complete these updates usually takes more than one restart to enable the individual updates.
Also prevents the IQ install error, “This app requires an update of your fēnix 5S. Please use Garmin Express to update your watch”
So, Update and Restart!