Suunto 2.50.28 hot-fix Q4
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Update – S9PP idle drain
Observed ~1%/h drain in normal mode.
In flight mode: ~0.25–0.5%/h (normal).
BT on (watch) + BT off (phone): normal drain.
Fully connected to iPhone: ~1%/h again.So it seems related to active BT/App communication, not hardware or general FW idle.
Now testing with background app refresh disabled.
Will report back.
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Hi everybody,
Does the North-up option work? I think I tried just after release of version 2.50.26 and it worked, but now on 2.50.28, it doesn’t work, even after a soft reset, any clue? -
Just found small bug. The next alarm time in morning report is not right, because it does not reflect alarms set for workdays. I think it only counts with general time.
If I have set alarms for 6:00 and 10:00 on workdays and morning report shows up on saturday at 8:00, it shows next alarm at 10:00 but next alarm will be on monday at 6:00. -
S9PP – Idle drain investigation (final update)
I initially observed ~1%/h drain in smartwatch mode after the latest FW.
Testing over the last 24h:
• Flight mode → ~0.25–0.4%/h (normal)
• BT on (watch) + BT off (phone) → normal
• Background App Refresh OFF → normal overnight drain
• Activities (no GPS / short GPS) → within spec
• With Background App Refresh ON → slightly higher idle, but not consistently reproducible 1%/h anymoreConclusion so far:
• HW is fine (training battery life fully in spec)
• Deep sleep works
• High drain seems related to iOS app communication state
• Not a permanent FW idle regressionFor now I’ll keep Background App Refresh disabled and continue monitoring.
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regarding the drain/battery management or whatever is related to the indication the watch provides … I am a bit disappointed… after letting the watch deplete and recharged it , I used and for 2 days it consumed like 2% per day - which gave me some smiles… (with oHR and notifications off though) … then I went for a run , using Suunto HR Belt, enabled the notifications and it lost 10% over 1 hour…
it is what it is , but it’s definitely not great
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@thanasis if you like you can check battery usage during workout in https://smlanal.szmigiel.design from @łukasz-szmigiel
Export the json form the workout in suunto app and upload it there.I haven’t checked yet but I guess the permanent sync with the HR Belt or other sensor is using much more battery. I did a MTB Ride this morning only with the OHR and best GPS and it uses about 2,8% / Hour.
Edit:
Uploaded a 10k run from December with Suunto HR Belt, it says 4,04%h. Still have to re-check with latest FW and App version. -
Interesting bugs today, probably easy repeatable if someone wants to check.
Imported a Suunto guide from intervals.icu and set up a run with a route. Firstly, I previously had media on, and it wasn’t possible to turn off from the menu when running (long press bottom right).
Secondly, every time a new section started of the training, the watch would tell me it was off route, before confirming I was back on route about 10s later. Which if you combine with the vibration from getting into the correct zone, vibration to start the interval and so on, is a lot of buzzing on the wrist, especially if you have a short (100m or so) interval.
I’ll try and replicate it whenever I do a quality session next, probably earliest the weekend or next week I guess.
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@Benjamin-0 when I RMA’d mine I just got a “your battery’s fine, here’s your watch back”, so lucky you

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Just to add, had the same issue yesterday with the route dropping temporarily when in conjunction with a guided so every new interval caused a “route lost”/“back on route” combo.
Also, the watch hung on a zonesense screen, with nothing happening when buttons were pressed. Happily before I soft reset I tried the long press bottom button to escape to a menu, and then exited out, all was fine. Avoided the zonesense screen the rest of the run, but if someone else has that they may resort to soft resetting.
Appreciate it’s a bit late in the cycle of watch updates to report, but any idea if these have been fixed in new SW update or are unreported? @egika @dimitrios-kanellopoulos
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Just replied to a post in the 9PP forum specific to this issue, but probably more appropriate to mention here…
After the last firmware update I started getting frequent phantom alerts/vibrations - several per day with no message on the screen or apparent reason.
In my case, this behaviour it disappeared after a few days without me taking any action, however over the last few days it has spontaneously started again - frequent phantom alerts/vibrations.
Not sure if this was acknowledged as a bug in the latest s/w and we can expect a fix in the imminent release?