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    Heart Rate Measurement stops

    Scheduled Pinned Locked Moved Suunto 9 Peak Pro
    suunto 9 peak pro
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    • Ecki D.E Offline
      Ecki D. Bronze Member
      last edited by Ecki D.

      Same here after the Softwareupdate!😢 This Morning HR and Ox stopped to work during the night. Sleep tracking stopped too.
      Watch enters Sleep / do not disturb mode at 23:00. Measurement seemed to stop at around 2:45, when the OX Sensor seemed to do its last measurement. OX Sayed last measured 5 hours ago when I realized it around 7:50. So I guess there is a coincidence between HR sensor and ox sensor.

      Will try to turn of OX sensor if it happens again.
      Couldn’t reproduce while starting OX measuring manually.

      Didn’t have this issue for quite a long time.

      Herzfrequenz_0.jpeg

      HR After Restart of PP9
      Herzfrequenz.jpegBildschirmfoto 2024-12-19 um 11.04.02.jpeg

      https://www.strava.com/athletes/37982563
      https://www.instagram.com/macdev

      1 Reply Last reply Reply Quote 1
      • J Offline
        jussim Bronze Member @pilleus
        last edited by

        @pilleus Same here, so far at least. Kind of nervous reading about these issues…

        9PP since 09-2025.

        Brad_OlwinB 1 Reply Last reply Reply Quote 2
        • Brad_OlwinB Offline
          Brad_Olwin Moderator @jussim
          last edited by

          @jussim @Ecki-D I have reported as a bug to Suunto, this is under investigation.

          Vector/T6c/Ambit 3 Peak/S5 Copper/S3/S7 Ti/S9 baro Ti/S9P Ti/S9PP Ti/Vertical Ti/Race Ti/RaceS/Ocean/Wing

          1 Reply Last reply Reply Quote 7
          • Z Offline
            Zvezda
            last edited by

            I’ve also had the same problem with HR Measurement stops since last update. Soft reset helps only for couple of hours, then it stops again.
            Any recommendation how to solve the problem?

            Mff73M 1 Reply Last reply Reply Quote 0
            • Mff73M Offline
              Mff73 @Zvezda
              last edited by

              @Zvezda said in Heart Rate Measurement stops:

              I’ve also had the same problem with HR Measurement stops since last update. Soft reset helps only for couple of hours, then it stops again.
              Any recommendation how to solve the problem?

              wait and stay tuned for informations/fixes
              https://forum.suunto.com/post/159093

              Suunto Spartan Ultra (since 2016) FW: 2.8.24 (retired)
              Suunto Vertical all black
              Wife : S9PP
              SA: Always the latest beta :)
              Android 13, Galaxy S205G

              1 Reply Last reply Reply Quote 0
              • S Offline
                Sergio Nasi @Ludwig Pichlbauer
                last edited by

                @Ludwig-Pichlbauer I can confirm the bug is back with 2.39.20.
                No measurement of heart rate after a random period of time, I just discover it when I need it and a soft reset is required in order to restore the heart rate detection.
                Very annoying, particularly because it’s a recurring problem

                EgikaE Ludwig PichlbauerL 2 Replies Last reply Reply Quote 2
                • EgikaE Offline
                  Egika Platinum Member @Sergio Nasi
                  last edited by

                  @Sergio-Nasi as written above this is currently being worked on by Suunto.

                  What helped me with other firmwares when OHR was jammed: start a manual SpO2 measurement. Maybe you want to try instead of resetting the whole watch?

                  t6, S6, Elementum Terra, Ambit 3 Sapphire, Spartan Ultra Copper, Traverse Alpha, S7 Graphite LE, S9B Ambassador, S9P Granite Blue Titanium, S9PP Titanium Sand, Vertical All Black, Race Titanium Charcoal,
                  Race S All Black - TI Canary - Titanium Courtney

                  M 1 Reply Last reply Reply Quote 2
                  • Ludwig PichlbauerL Offline
                    Ludwig Pichlbauer @Sergio Nasi
                    last edited by

                    @Sergio-Nasi yes, 2.39.20 - Suunto 9 Peak Pro

                    Suunto 9 Peak Pro (current)
                    Hammerhead Karoo 2 (current)
                    Suunto 9 Baro Black (retired)
                    Suunto Spartan Sport Wrist HR (retired)

                    1 Reply Last reply Reply Quote 0
                    • M Offline
                      magbueno @Ludwig Pichlbauer
                      last edited by

                      @Ludwig-Pichlbauer said in Heart Rate Measurement stops:

                      Hi together,
                      I think with the latest update to 3.39.20 the bug is back.
                      Yesterday, soft reset helped to reactivate Heart Rate sensor, after today’s “4-hours sleep” (it stopped working again in the middle of the night) I have to do another one…
                      Somebody seeing the same device behavior?
                      Kind regards:)

                      Same problem for my Suunto after the last update, some days ago. Reset and manufacturing settings do not solve the problem. The update is 2.39.20

                      1 Reply Last reply Reply Quote 0
                      • M Offline
                        magbueno @Egika
                        last edited by

                        @Egika It doesn’t work. Despite starting the measurement manualy the leds doesn’t start flickering. Thanks anyway.

                        1 Reply Last reply Reply Quote 0
                        • B Offline
                          ben74 @flo7z
                          last edited by

                          @flo7z l have the same problem

                          S 1 Reply Last reply Reply Quote 0
                          • S Offline
                            sahara91 @ben74
                            last edited by

                            I am also dealing with this problem for nearly a week alrady. Very annoying!

                            1 Reply Last reply Reply Quote 0
                            • M Offline
                              MartinK
                              last edited by

                              Same for me. Switching of my peak pro and starting it again reactivates the lights for measurements again but after around 4-6 hours it’s stops again. Manual measurement not switching on lights anymore.

                              1 Reply Last reply Reply Quote 0
                              • A Offline
                                arkaitzgalvan
                                last edited by

                                Hi ! since last Software update on my suunto 9 peak prolast week,

                                1 Reply Last reply Reply Quote 1
                                • ania92A Offline
                                  ania92
                                  last edited by

                                  Hello,
                                  Happens to me as well since update to 2.39 and only soft reset helps. Please let me know if there is any solution for this problem.

                                  A 1 Reply Last reply Reply Quote 0
                                  • A Offline
                                    arkaitzgalvan @ania92
                                    last edited by

                                    Hi all,
                                    Since Last Week’s Software Update, all of us are suffering Heart Rate issue on our Suunto 9 Peak Pro. This New Software Version has an error on Heart Rate Function and this is very annoying for any athlete or sport lover.
                                    Today I spoke with Suunto’s Chat asistance and they confirm me how to solve it.
                                    Meanwhile they are working on it, we all have to change the Software to the previous version 2.37.48
                                    I did it today and by the moment Heart Rate issue is solved changing to the previous version

                                    1 Reply Last reply Reply Quote 0
                                    • vincent mayousseV Offline
                                      vincent mayousse
                                      last edited by

                                      Hi,
                                      Same here since the last firmware update (2.39.20).
                                      Also experienced this issue with a former version of the firmware (early 2024, as stated when this topic was opened). It was solved with an update mid-2024, but now it went back again a couple of weeks ago.
                                      I hope Suunto is working on this indeed…Very annoying, I have to do a soft reset before every activity (because even during the day, HR sensor stops abruptly, not only during sleep…)

                                      1 Reply Last reply Reply Quote 3
                                      • A Offline
                                        arkaitzgalvan
                                        last edited by

                                        Yes correct the problem with the update.
                                        Please follow the below steps to solve
                                        the issue.
                                        Long press the middle button to enter
                                        setting Select general Select about Slide
                                        down until you see data privacy at the
                                        end Long press the lower button to enter
                                        the interface Slide down and select
                                        “select OTA pkg” You can see the current
                                        version and the previous version here.
                                        Select the previous version to update

                                        M P vincent mayousseV 3 Replies Last reply Reply Quote 8
                                        • W Offline
                                          william5091
                                          last edited by

                                          Same issue here since more or less 1 week. I guess it’s due to last update and restoring last version will do the job.
                                          Thanks @arkaitzgalvan for your help.

                                          A 1 Reply Last reply Reply Quote 0
                                          • Brad_OlwinB Brad_Olwin referenced this topic on
                                          • M Offline
                                            magbueno @arkaitzgalvan
                                            last edited by

                                            @arkaitzgalvan thanks for your help, its nice to have the previous version back.
                                            Anyone knows how can I avoid now the automatic software download to the watch when I syncro with the app?
                                            Thanks

                                            A P 2 Replies Last reply Reply Quote 0
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