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For God's sake Garmin, go back to the factory version of the 955.

each version a different bug, fix some things and break others. This one about the drop in heart rate is complicated. this has a big impact on training because everything is based on heart rate.

Top Replies

Clifton over 3 years ago +1

11.12 was solid out of the box and my best Garmin experience for the last 10 years of ownership (FR225, FR620, FR630, Vivoactive 3 and FR645). With the new updates 12.23 & 12.27, I'm back to ignoring my…
Former Member over 3 years ago +1

Please give us a possibility to downgrade! I'm also experiencing issues with each update. 11.12. was good enough at least
DPSK over 3 years ago in reply to eGoїst +1

I have not tried.

Would you like to try?

www8.garmin.com/.../download_details.jsp

All Replies

0 FlipStone over 3 years ago

I do have the 11.12 update in the form of a GPUPDATE.GSP file... but to be honest, no clue if you can downgrade (assume not) and not willing to try out either.

But there were sensor/whr updates from 9.12 to 10.10 and then from 11.12 to 12.23

0 Clifton over 3 years ago

11.12 was solid out of the box and my best Garmin experience for the last 10 years of ownership (FR225, FR620, FR630, Vivoactive 3 and FR645). With the new updates 12.23 & 12.27, I'm back to ignoring my 955's suggestions and observations.

0 eGoїst over 3 years ago

Totaly agree!

0 Former Member over 3 years ago

Please give us a possibility to downgrade! I'm also experiencing issues with each update. 11.12. was good enough at least

0 9170306 over 3 years ago

This problem of falling or increasing heart rate in races is unfortunate. I had to fix this as soon as possible. It impacts all the watch's metrics and it is practically unusable.

0 DPSK over 3 years ago

I miss the 11.12 too.

Had accidentally upgraded to 12.23 when I was downloading files to send to Garmin.

A move that I regret. I shouldn't waste my time to send the data. In the end, Garmin Kevin closed my case because of not enough data. Truly absurd !

My suggestion is to invoke the warranty and get a replacement watch. And hope it is loaded with the 11.12 firmware.

0 eGoїst over 3 years ago in reply to DPSK

DPSK said:
My suggestion is to invoke the warranty and get a replacement watch. And hope it is loaded with the 11.12 firmware.

I got file with firmware 11.12. Is there any way to downgrade with it somehow?

0 9170306 over 3 years ago in reply to eGoїst

My despair that I have a marathon run now on 10/29 and I can't trust the clock. I'll have to use the crap that had already retired the apple watch. Detail today I discovered bug in pace and distance too.

0 DPSK over 3 years ago in reply to eGoїst

I have not tried.

Would you like to try?

www8.garmin.com/.../download_details.jsp

0 9170306 over 3 years ago in reply to DPSK

Tanks.