Software Update 2.44.52 (2025 Q3 - HOTFIX)

Highlands

Today during a hiking activity after 6.5 km the SV1 stopped displaying the HR from my H10 and hence ZoneSense stopped working. No oHR readings either. The H10 strap is nearly new and the battery of the sensor is at 90%. This thing never ever happened before. Meanwhile the H10 was connected to my other watch and as expected, no issues at all.
Was that just a glitch or a bug that I got after installing the latest hot fix?

duffman19

@Highlands I had this happen with a Suunto Smart Sensor last week, so prior to this hotfix. Same thing, though - lost connection midway though activity and never re-connected eventhough there was plenty of battery life. I was able to reconnect the sensor after completing the activity and to other devices, so I don’t think it was an issue with the external HR.

Like others, I was also experiencing random vibrations on the watch (both during and outside of recording an activity) which I think had to do with the external HR dropping and reconnecting bluetooth. I haven’t had the issue in a few days after performing a soft reset. Not sure if it’s all connected, but it seems like there are still a few issues with the new bluetooth setup.

Edit: Another issue this presents is that once you lose the connection with an external HR (whether due to a bug or a dead battery, etc.), you no longer have any HR reading. I think the expected behavior would be to have it fall back to the watch’s optical HR so you at least have something. I believe this is how it works with most other companies.

Francesco Pagano

I did a walking activity today that is not uploading even though the watch seems to be syncing fine. It’s saved on the watch logbook. Never happened before this update. A running activity from yesterday (after new firmware as well) synced fine.

2b2bff

My Race S updated tonight. I woke up as it was updating and got a really bright screen. Okay, just let the watch do its thing. It rebooted and presented me a “Your watch has been updated” screen, waiting for my “OK” press. After this it has gone back to DND mode and I continued sleeping.
As expected sleep tracking for the night is just trash. Even more: heart rate tracking stopped with the update and started again 07:10 in the morning. Way after I pressed “OK”.

Could we have the Garmin way of doing updates? Watch is telling there is an update waiting and wether it should be done now. Even with an estimated update time. So you can do the update whenever it fits in your life.

Highlands

@duffman19 Thank you very much for taking the time to answer. I’ve been experiencing everything you described.
Of course, I’d love to test for Suunto but I’d rather they sent me a test device for that purpose. My SV1 is my daily driver and I strongly prefer it to run a stable software.
Couldn’t agree more with you that when the external HR disappears the watch should default back to oHR.
Edit: As always, after installing the latest software update, I rebooted my Suunto watches twice by holding the upper button for 12 seconds or so.

Squirrel

@Highlands said in Software Update 2.44.52 (2025 Q3 - HOTFIX):

As always, after installing the latest software update, I rebooted my Suunto watches twice by holding the upper button for 12 seconds or so.

Is there any practical difference between rebooting the watch 3 times, versus just once?

Highlands

@Squirrel Thanks for making me think about this.
Here’s what I found:

Rebooting (often referred to as a “soft reset”) is typically recommended as a single action to resolve minor glitches, such as temporary unresponsiveness or software hangs, by pressing and holding the upper right button for about 12 seconds until the watch vibrates and restarts. This clears temporary memory issues without erasing data.
Official Suunto advice emphasizes that repeated resets should be avoided unless directed by support, as they indicate deeper problems like hardware faults, and may require warranty service instead. If your watch is experiencing issues, sync data first, then try a single reboot; if it persists, contact Suunto support for model-specific guidance.

OutdoorMan

@duffman19 @Highlands I had something similar happen yesterday

GiPFELKiND

@OutdoorMan holy moly iam really happy to Run all my Watches at 2.37.48 never ever had this Problems. Buy a good working suunto and make it bad with some Updates and hotfixes 🤩 you don’t get your money Back

Highlands

@GiPFELKiND Now my SV needs another hot fix for this issue.

OutdoorMan

@Highlands it’s coming Suun.

Highlands

@OutdoorMan I wonder if this hot fix was ever tested before rolling out

GiPFELKiND

@Highlands oh nooooooo

Tieutieu

@Tieutieu said in Software Update 2.44.52 (2025 Q3 - HOTFIX):

@Dimitrios-Kanellopoulos does “zonesense zone indicator fixed” means “VO2max autotag bug for running activities” fixed or something else ?

Vo2 max auto tag bug seems to be fixed ; went (at last) running this morning (trail race) and auto tag is ok (hard anaerobic).

Eliseev-PA

@Belial I also have this issue with the iPhone 17. I tried to sync activities with my iPhone 13 Pro Max, and everything went well. Do you have any information about when it will be fixed?

Belial

@Eliseev-PA there were some rumors, that 26.1 should have this bug fixed, but someone in other thread informed, that he’s using 26.1 beta and the issue persists

Squirrel

@Tieutieu said in Software Update 2.44.52 (2025 Q3 - HOTFIX):

Vo2 max auto tag bug seems to be fixed ; went (at last) running this morning (trail race) and auto tag is ok (hard anaerobic).

Did your pace zones change post update? Can you check in the app this latest run vs. some previous run?

Shrek3k

@Tieutieu for me unfortunately not - I am still “VO2 max” instead of “Aerobic”. Very disappointed … I will proceed to try to ignore it as usual.
Note: have not heard from the four friends (Suunto users) affected by this, too (2 X Race, 1 x Race S, 1 x Vertical). As I don’t want to be (mostly silent) blamed by them for convincing them to buy a Suunto

SuperFlo75

I had a little walk yesterday, and a little run today… the behavior of my SV was as expected… I didn’t notice any issues… I‘m really happy 🤩

Mitch9

Two problems with the latest update so far:

No more off-track-warnings! This is really annoying because nothing changed for navigation.
During one long hiking activity my SV rebooted. Fortunately I recognised it because of the vibration and the activity was saved. I had to start a second one and the activity is split now. Not so nice and I hope this happens no more.