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Wrong pace value on treadmill activity after 8.40 firmware update on Fenix 5x plus

Former Member over 6 years ago

Hi,

After the upgrade of my Fenix 5x plus to 8.40 firmware, my pace, and the distance in consequence, is too way off on a treadmill running. It seems that this upgrade wipe out the calibration that I done before.

It was a 6k running and the watch showed 7.75k (I do not use a foot pod)! Before the upgrade the error in my treadmill runs was in the order of +/-150 m.

Another issue to mention is that the battery has drained 2% (too fast in my opnion) in 45 min of activity (6k treadmill running and strenth workout) without GPS or Music, only sync with the phone and the RD pod.

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0 SAHO over 6 years ago

It seems that this upgrade wipe out the calibration that I done before.

So I guess the question then would be: Did you do a new calibration, and did it solve the problem?

0 Former Member over 6 years ago in reply to SAHO

Yes, I just did and It seems a way better (I did 3x runs of 2k km)

The problem is, if this data was wipe out what else was deleted?

0 SAHO over 6 years ago in reply to Former Member

Good point.

It's always worth having a glance at your personal settings like pulse zones, height/weight etc. after updating. I've heard people saying they happens to reset, although I've never experienced it myself.

0 Former Member over 6 years ago in reply to SAHO

The only thing I could think of is if the update changed something in the treadmill activity that meant it had a different calibration algorithm and needed to recalculate on fresh data. But in that case it should have said something like ‘please recalculate calibration’ so yeah not good.