I have an HRM Dual heart rate sensor which has performed faultlessly for over a year. I am using it via BT with several devices at different times (obviously not all simultaneously!).
This morning, though it can connect to the HRM-Dual via BT, my Galaxy Note 9 phone sees no data. ANT+ seems fine. Connections to my MacBook and two iPads seem to work fine.
I think this may really be an issue with the Galaxy Note 9 phone, but I'm at a bit of a loss as to how to troubleshoot this. I had an Android update on 11th December, but this problem didn't manifest itself until some time in the last 24h.
Any advice?
Robert