sleep tracking not working after most recent update
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I bought the Suunto 9 Peak Pro 1 week ago, and it also happened to me tonight. The HR sensor stopped working, no data, no blinking, and the HR view showed “measuring” continuously. A reset enabled it again, and it works now. I have the latest software, 2.48.16.
Suunto customer service told me that a reset is the only solution for now, and if more people report the problem, a future Firmware update could fix it. But if a 1-week-old watch has that problem, it is known and already reported issue, and it has not been fixed since months, I’d better return it… Or do you have any tricks or solutions for it? How often does it happen?
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@Jaxdu this should not be occurring anymore. I will inquire about it and test my S9PP as well.
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@Jaxdu, this issue persecuted my watch for a very loong time, firmware after firmware; then, with the “old” firmware 2.40.44, the issue seemed to be solved.
However, with all the firmware releases between 2.40.44 and 2.48.16, the issue came back, so I always downgraded the watch to 2.40.44.
Now, actually for the last 2 weeks, my watch is running with firmware 2.48.16 without problems (
).Once I’ve installed the latest firmware, I’ve only proceed with a watch soft reset, as usually suggested: give it a try!
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@Matúš Thank you very much! And let’s see, I will continue testing and communicate if the issue occurs again. I read about those issues, also that Sunnto messed up and had to revert some updates or introduced the issue again… But your message clarifies the full history a lot, better than reading different old discussions without clear conclusions (and much better than the info from the official chat/service department).
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@Jaxxdu My sleep tracking is working on 2.48.16 on the S9PP.
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@Brad_Olwin Unfortunately, I am not alone; @Ecki-D. also reported the same problem today. I sent feedback to Sunnto through the app, including the logs and the screenshot. And it seems there are more software problems with the latest update, as discussed here: https://forum.suunto.com/topic/14073/software-update-2.48.16-2025-november-rain-release/396
If I don’t receive any support from them, I guess I will send it back…
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Yeah, I didn’t have the issue for quite a while, and it doesn’t happen very often for me — but it’s still a bit annoying.
Looking back, it almost feels like it tends to show up once after a firmware update.
Normally I don’t restart my watch at all, and it runs fine for months. Today the sensors came back to life simply by toggling the energy-saving mode on and off.When I compare it to other devices that need frequent reboots to behave properly, the watch is actually quite robust.
On the other hand, maybe the issue pops up more often because of restarts — who knows.Not sure how often it happens for others, but it seems to affect the Race S as well.
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@Ecki-D. @Brad_Olwin Some updates. The watch has been stopping the HR tracking at night, at different times and for different durations, almost every day. But it always recovers and continues reading. I thought it could be wrong contact with the skin, but I don’t think it is the issue after tightening it more. Also, I rebooted it yesterday, and it occurred again. I wouldn’t care much if it is for a short time, but then the sleeping times are totally wrong, because it seems that the sleep time stops when that happen, if it recovers, it doesn’t count it anymore.
And today, without any interaction with the watch, I noticed that the watch face was the default one. It has lost the one I installed and configured. The software version is still the same. Any ideas? Is it also a known issue? Thank you in advance!
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The watch faces are fixed now, but no news about the HR issue…
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J Jaxxdu referenced this topic
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@Jaxxdu This morning I again had the passkey lock in the morning but the sensor has been flashing - so maybe there was dropout tonight.
Just checked but it looks okay. Strange that the lock screen was on though.
