Heart Rate Measurement stops

[ania92]

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.

[arkaitzgalvan]

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

[vincent mayousse]

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…)

[arkaitzgalvan]

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

[william5091]

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.

[magbueno]

@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

[arkaitzgalvan]

@magbueno you are welcome

[arkaitzgalvan]

@william5091 you are welcome

[paulo.malheiro]

@arkaitzgalvan thanks for the steps, it helped a lot.

[paulo.malheiro]

@magbueno hi, in the app, in the watch menu, click on the settings icon, then there is an icon to turn on/off automatic update, at first, it worked for me.

[vincent mayousse]

@arkaitzgalvan thanks for your help! It seems that it works
Can someone inform us when the HR issue detection on the last update (2.39.20) is solved, so that we can go back to this newest version?
Tks!

[Robb_Lohr]

@Ludwig-Pichlbauer
I’m experiencing similar behavior. I just got my SPP9 last Friday, 12/20. Did the update to 2.39.20 during set up and have had trouble with the HR and O2 sensor ever since. I do a soft reset twice a day and that seems to reset the sensors but that lasts only a few hours. I also soft reset right before I sleep and get about 1-1/2 hours of tracking before the sensors quit. Has there been any timeline from Suunto on a fix for this issue? Seriously considering returning it.

[Brad_Olwin]

@vincent-mayousse We will let you know. We have tested newer firmware that is supposed to fix this. When we know it is working as it should it will be released. The testing may take a bit of time and sorry about that but we don’t want to have other issues arise.

[Danny poleg]

@Brad_Olwin Just if I may ask a clarification question
There is no intention to send a downgraded version
Until the testing is complete after the holidays?
And just wait patiently until an updated version is released?

[Brad_Olwin]

@Danny-poleg I do not know, just a tester and well above my grade.

[Danny poleg]

@Brad_Olwin Thank you very much, Happy holiday and Happy New Year

[magbueno]

@paulo-malheiro Thank You!!

[jacassata]

@Ludwig-Pichlbauer
This is a summary of the instructions that I’ve pulled from this thread, to help the next person like me:

On watch: 
Long press the middle button to enter Setting.
Select General.
Select About.
Scroll down all the way to the bottom, 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.

In app: 
Go to Home screen. 
Click on watch symbol in the upper right corner. 
Click 3 dots in the upper right corner. 
Click About Device
Click toggle next to “Enable automatic updates” to disable auto updates.

Fingers crossed this works.

[Philippe Maquin]

Same here, the heart rate sensor stop working every night and works back for the day after a soft restart.

I have to say I am disapointed, this issue is not new and came back twice this year. I am not sure I would go again with suunto for my next watch, this is not the only bug but the most annoying.

[SivuLuisu]

@Philippe-Maquin I have same problem, with latest firmware and I’m getting sick and tired about these buggy releases.