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    HR Sensor issue after Software update Q2 (2.56.18)

    Scheduled Pinned Locked Moved Suunto Race
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    • M Online
      Mattg576
      last edited by

      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 ?

      f5691c25-dff9-4a83-8d86-6478f7a67eb7-image.jpeg

      eca06507-3a6e-4b1d-83d3-c84bf7294f94-image.jpeg

      dace25ba-a71a-45ce-a64c-52e190435a94-image.jpeg

      Cheers
      Matt

      Race
      9 Peak
      Ambit 3 Peak
      Ambit 2R (sold)
      Suunto T3d (expired)

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      • M Online
        Mattg576 @Mattg576
        last edited by

        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).

        Race
        9 Peak
        Ambit 3 Peak
        Ambit 2R (sold)
        Suunto T3d (expired)

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        • E Offline
          elbee
          last edited by

          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-sensor

          More people are bothered by it, but a solution is not in sight.

          Suunto t3c | Suunto Ambit 3 sport | Tomtom runner 2 | Garmin forerunner 935 | Garmin forerunner 965 | Suunto race s
          Stryd | Bryton Gardia R300L | Polar H9 | Polar oh1+ | Wahoo bolt v2 | 4iiii precision 3

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          • M Online
            Mattg576 @elbee
            last edited by

            @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 ?

            5ef07d4e-3fb3-445a-9563-77abfde90d65-image.jpeg

            Race
            9 Peak
            Ambit 3 Peak
            Ambit 2R (sold)
            Suunto T3d (expired)

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            • E Offline
              elbee @Mattg576
              last edited by elbee

              @Mattg576

              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)

              Suunto t3c | Suunto Ambit 3 sport | Tomtom runner 2 | Garmin forerunner 935 | Garmin forerunner 965 | Suunto race s
              Stryd | Bryton Gardia R300L | Polar H9 | Polar oh1+ | Wahoo bolt v2 | 4iiii precision 3

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              • M Online
                Mattg576 @elbee
                last edited by

                @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)

                Race
                9 Peak
                Ambit 3 Peak
                Ambit 2R (sold)
                Suunto T3d (expired)

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                • E Offline
                  elbee @Mattg576
                  last edited by

                  @Mattg576

                  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.

                  Suunto t3c | Suunto Ambit 3 sport | Tomtom runner 2 | Garmin forerunner 935 | Garmin forerunner 965 | Suunto race s
                  Stryd | Bryton Gardia R300L | Polar H9 | Polar oh1+ | Wahoo bolt v2 | 4iiii precision 3

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                  • M Online
                    Mattg576 @elbee
                    last edited by

                    @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

                    Race
                    9 Peak
                    Ambit 3 Peak
                    Ambit 2R (sold)
                    Suunto T3d (expired)

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                    • E Offline
                      elbee @Mattg576
                      last edited by

                      @Mattg576

                      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.

                      Suunto t3c | Suunto Ambit 3 sport | Tomtom runner 2 | Garmin forerunner 935 | Garmin forerunner 965 | Suunto race s
                      Stryd | Bryton Gardia R300L | Polar H9 | Polar oh1+ | Wahoo bolt v2 | 4iiii precision 3

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                      • M Online
                        Mattg576 @elbee
                        last edited by

                        @elbee so in your experience do you think the bug was always lurking in the software waiting to rear its ugly head ?
                        It’s been faultless really, my old smart HR sensor did fail 8 months ago but it was donkeys years old so wasn’t bothered, I bought a new one & that also just worked as expected until the 14th July when the wheels fell off between going for a run (fine) & messing about with some kettlebells straight afterwards…

                        Race
                        9 Peak
                        Ambit 3 Peak
                        Ambit 2R (sold)
                        Suunto T3d (expired)

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                        • E Offline
                          elbee @Mattg576
                          last edited by

                          @Mattg576 said:

                          @elbee so in your experience do you think the bug was always lurking in the software waiting to rear its ugly head ?

                          Yes, that’s most likely

                          Suunto t3c | Suunto Ambit 3 sport | Tomtom runner 2 | Garmin forerunner 935 | Garmin forerunner 965 | Suunto race s
                          Stryd | Bryton Gardia R300L | Polar H9 | Polar oh1+ | Wahoo bolt v2 | 4iiii precision 3

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