HR Sensor issue after Software update Q2 (2.56.18)
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It may just be huge coincidence but my Suunto HR sensor started continuously disconnecting from my Race on the afternoon of 14th July.
The data is still saved in the HR sensor internal memory & synced to the watch when I end the activity but looks corrupt as below.
HR sensor is only 8 months old & so far I’ve tried the following but the issue persists.
Fitted a new Duracell battery
Deleted sensor, soft reset Race, re-paired sensor
Any other Race1 users had any similar problems or any other suggestions of what I can try next ?
Cheers
Matt -
I’ve done some more testing on this today as it seems to be local to myself,
After a lot of messing around I’ve found that on the first disconnection if I remove the sensor belt altogether the watch continues to connect/disconnect even with the belt in a different part of my house… (wrist HR toggled off)
That suggests to me that the issue is with the Race rather than the sensor.
I’ve been through the delete sensor, soft reset, re-pair sensor cycle several times now without success so will have to try a hard reset to see if that resolves the issue (first one in over 3 years of ownership).
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I don’t think your race did receive a firmware update recently.
But your problem is a known one.
See https://forum.suunto.com/topic/15546/finally-a-reaction-from-suunto-about-the-disconnecting-heart-rate-sensorMore people are bothered by it, but a solution is not in sight.
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@elbee Yeah I read that thread earlier, seems very coincidental that it started the day the latest V2/R2 update landed (for me anyhow).
When you experience the drop outs does your HR look similar to this in the app afterwards ?
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My troubles started months ago. Nothing to do with a recent firmware update for other watches.
My graph looks different because I use a polar oh1+ heart rate sensor (which doesn’t have a memory to store unsynced data). After the bluetooth connection is lost, it just shows heart rate as 0 (zero)
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@elbee Thanks for the info,
My Race has been virtually faultless for over 3 years now so I’ll be turbo annoyed if it suddenly starts playing up…
Anyhow hard reset is done now & just going through a complete re-set up from scratch (that’s also pretty pants)
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At the end of last year, Suunto reimplemented the bluetooth stack and that’s most likely the cause (tells my intuition based on 30 it experience. Bluetooth stack is complex).
Restarting your watch might or might not be a temporary remedy. My race s can go weeks without it occurring and then a couple of times in a short period of time.
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@elbee well a hard reset & all the agro that goes with it hasn’t made a blind bit of difference,
HR dropped out again straight away ffs -
Tbh, that was expected. A hard reset doesn’t fix bugs. At best it prevents a bug to occur for a while.
Suunto developers are the only ones that can fix it. But first they have to get time to investigate, then find the cause, come up with a solution, and release a new firmware. That last part is also not certain.
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