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Forerunner 965 and polar h-10 hrm pairing

Usualy i using my garmin 965 (945 before) with polar h-10 hrm. It worked perfectly. But half year ago some problems came.

HRM works not correсt. There are dips in the charts. Usualy when i start to running my heart rate increase according my pace, but after 5-10 min HR falling till 40-60 bps and stay conctantly for undefinently period of this training. It may be corretly again or not. For example (pic.3) i skiing (nordic ski) with pace 4.00 min\km but my HR was 40-60 BPM. I sure it not correct.

When i use Iphone + H-10 HRM it's works good, without dips. I tryed to change battery, use water for strap - not effect. I have 2 polar HRM-10 and straps with simmilar problem.

anyone have similar problems?

0 Guillaume over 1 year ago

no problem for me (FR965+H10). Did you pair it with ANT or Bluetooth smart ? what about your strap ? is it old ?

0 Luko79 over 1 year ago

i have h10 also, via ANT+ it is flawless with 965 (via BT with Edge 840 in same time for better HRV recording). the h10 is apprx 8months old, what i notice that it eats the batteries much quicker than a Garmin HRM (apprx i have to change battery in every 2months, with weekly 15-20hs training)

check the h10's firmware too with Polar Beat or Flow, and turn off the non-used protocols if necessary.

0 3422337 over 1 year ago in reply to Guillaume

how you choosing type of connetcion (ant+ or BT)? is it setup on the FR965?

0 3422337 over 1 year ago in reply to Luko79

My straps probably 2 years old, but it is good condition because works good with my iphone (polar beat app). This problem came after software updating for H-10 (v. 3.2). During update i got message "an error with updating, device may be works not correct". But i see new version of software via polar beat app. This situated for both of my h-10 HRM.

I have also third h-10 with software v.3.1.1. I'll be testing it at this weekend)

0 Luko79 over 1 year ago in reply to 3422337

i am on the 3.1.1 with my H10s (i have old android system mobile and the 3.2 is not popping up as a new firmware in Beat) i would ask Polar how to force to reload the firmware into the H10s (or downgrade to 3.1.1) the 3.2 is only for newest Android 13 as i know.

0 3422337 over 1 year ago in reply to Luko79

It's not possible to downgrade firmware for H-10 sensor. Propably my both straps are so old.. i'll try to check with new one

0 3422337 11 months ago

hello guys!
I have solved my problem with pairing.
It's not a software issue after update HRM H-10.
Both of my chest straps PRO was 3 old (but it's look like so good condition).
I bought new one and no more lost data sympthoms.

0 superuser1 10 months ago

A question: when you pair it, does the frequency sensor of your watch remain active? That happens to me and I have doubts about whether he is using the sensor or is using the band. It also happens to me with the sense polar arm band.

0 S.M.R. 10 months ago in reply to superuser1

Are you on 18.xx versions? Garmin has made some changes and commented on other posts in this regards that the OHR lights remaining on when HRM is connected is due to a new feature coming in the future..

Saw this post as well, last comment may be helpful?

forums.garmin.com/.../1730745

0 superuser1 10 months ago in reply to S.M.R.

So you mean that: is it normal for both the watch and the band to be on while I'm running? Thank you.