Sorry to post under Fenix 5 but there doesn't appear to be a Fenix 3 section.
I noticed that my HR hadn't shifted from resting HR for a few days and the green LEDs didn't appear to be lighting up. I have updated the software, rebooted, trawled the internet and sent the question to Garmin Support (no answer yet) but still nothing. The heart symbol does flash on the display when you select the HR page but no HR readout which makes sense as the LEDs are not switching on.
In addition, there is no step count and I've run all the diagnostics above as well as checking the GPS is functioning (it is).
Everything else is working fine and no issues with linking to my phone or connecting to WiFi or my laptop via the charging lead.
Has anyone come across these 2 issues or individually?