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HRM PRO connectivity problems since firmware update

mosplace over 1 year ago

I updated my Strap and had and have problems.

After updating the strap did not connect anymore. Did a soft reset on my watch. Deleted it from the app. Only thing that helped was taking out the battery from my Strap to reset the strap.

After that my watch found the sensor and the app found the strap finally

But unfortunately it is still not working correctly. Connected via Ant+ to my watch and via Bluetooth to my headwind , i can see it on Zwift it has four green bars in the Zwift app, but does not send any heart rate to the app. Disconnected etc. no change. Very annoying. I definitely have only problems with the new firmware. The strap worked perfect before and now it's awful

Top Replies

Maxym-Karl over 1 year ago +1

I have the same issue but changing the battery didn't help. I can't have it detected anymore

Have you updated Garmin Connect?

All Replies

0 marcelfrederic over 1 year ago

Any updates on this issue? After firmware update, my HRM Pro is also no longer sending Heartrate Data (Sensor not detected)

0 belovedrooster over 1 year ago in reply to marcelfrederic

I'm having the same problem with mine after an update on 4th September.

0 yannlux over 1 year ago

Does anyone found a solution to this? Mine stopped working for the same reason i believe.

0 flavi85 over 1 year ago in reply to yannlux

Hello, Same issue after update...but i tried to wash with water the electrods from the band an it seems that the sensor is working now.

Please try this to see if it's working for you as well

0 Robert_Fey over 1 year ago

My HRM-pro has firmware 8.8. It worked fine for a while. But after I had to replace the battery this week the ANT+ connection has become very unstable and no HR is presented. Now I changed the connection type from ANT+ to BLE. The connection appears now stable and HR is presented. Did not tested it while doing a workout.

0 Adam-1972 over 1 year ago in reply to Robert_Fey

But over BLE you will not receive running dynamics and other data from the strap, only Heart Rate.

0 Robert_Fey over 1 year ago in reply to Adam-1972

Thanks ... Yes i noticed and finally also not stable during workout expect something else causing the error. So I cleaned the strap, new battery was drained already. Just replaced the battery again. First test was successful. Let see how it goes during a workout.