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Question

Garmin HRM connected not showing heart rate- issue started this week

  • June 28, 2025
  • 2 replies
  • 120 views

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Garmin HRM-dual linked to Strava. connection shows good when recording, double dash showing in HR block, Device shows connected in sensor menu. 

This had been working fine. Today nothing. new batter and same result. the monitor connected directly to app, not thru bluetooth on phone.

2 replies

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  • Author
  • Hub Rookie
  • 1 reply
  • June 28, 2025

Well Android phone updated to version 15 a couple of days ago, don’t know if that is relevant or not..


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  • Hub Starter
  • 1 reply
  • July 11, 2025

Exact same issue here:

  • Garmin HRM-dual linked to Strava app
  • Android phone updated to version 15 a couple of days ago
  • Device shows connected in sensor menu
  • had been working fine before android update
  • double dash showing in HR block

I tried to debug using android nRF connect app. It can read Garmin’s model, battery level etc, but I didn’t receive any notifications with heart rate.
Then I started strava app and nRF connect itself sent me notification if I want to see communication (debug info) between Strava and nRF connect app. I did and this step fixed my issue.😃