HRM has been working fine and connecting to Bluetooth and Ant+ no problem, Edg 830 did a 'sensor update' today not HRM will not connect to anything (Edge, Forerunner, Zwift, Phone). I've had a Garmin HRM that has had a low battery and this is different behavior plus the HRM strap isn't that old.
I think this is clearly due to the FW update, any ideas how to fix? I've completely lost confidence in Garmin kit and updates this last year, no end of issues with devices, time to change?