Invalid Activity File & Sync Failure - Garmin Forerunner 965

duyngo 7 days ago

Dear Garmin Dev Support Team,

I am writing to report a critical issue with my Garmin Forerunner 965. After completing a recent run and attempting to save the activity, the watch crashed and rebooted. Upon restarting, the activity was displayed as "invalid" and could not be synchronized with my Garmin Connect account.

I have attempted the following troubleshooting steps without success:

Soft reset of the watch.
Manual deletion of the invalid activity file from the watch via my computer.
Using FitCSVTool to convert the .fit file to a .csv file, and then convert it back to a .fit file.

While the repaired .fit file can be successfully imported into my Strava account, it still fails to synchronize or import into Garmin Connect. This suggests the issue may not be with the file itself but with how Garmin Connect's parser is handling the data.

I am using a Garmin Forerunner 965 and the Garmin Connect app on an iPhone.

Could you please investigate this matter? I would appreciate any guidance on how to manually import this activity or if a fix for this issue can be provided. I have attached the original .fit file and the repaired .fit file for your review.

Thank you for your time and assistance.
My email: [email protected]

F8IJ1201.fit

BRs,
Duy Ngo

Top Replies

seilogramp 4 days ago +2

duyngo said:
it still fails to synchronize or import into Garmin Connect

This can be repaired using Fit File Viewer - F8IJ1201_fixed.fit

Tested and imported into Garmin Connect Web - https://connect.garmin…
duyngo 4 days ago in reply to seilogramp +1

Thank you very much, It worked.

All Replies

0 1163477 4 days ago

I had the same problem with two separate runs in the past days with my FR965. Both were around 20km and navigation was activated. First time my watch crashed as you describe. Second time the watch just saved the activity and did not crash, but the activity nonetheless was then displayed as invalid. Between that I had a 15km run and that was saved without problems with activated navigation. I also uploaded the fit files manually to a fit file viewer and fixed that. Apparently the files were somehow corrupted. Manual upload into GC is then possible, but all the recovery data etc on the watch are not correct, as imported activities are not included in most of the calculations :-| I will not run with my watch again because if somehow my runs are not correctly tracked...whats the point???

I also need urgent help as I have a longer trail event coming up and 7h of running and not being able to rely on my watch is....

FW24.12

By the way also having issues with my Fenix 7 SS...whats going on Garmin!?

0 seilogramp 4 days ago

duyngo said:
it still fails to synchronize or import into Garmin Connect

This can be repaired using Fit File Viewer - F8IJ1201_fixed.fit

Tested and imported into Garmin Connect Web - https://connect.garmin.com/modern/import-data

0 1163477 4 days ago in reply to seilogramp

Yes, this can be done so that the activity is not totally lost. That website is great and also helped me. But all the health stats, that Garmin is calculating, are not considering manual imported activities. Or do you know a way to do that?

0 duyngo 4 days ago in reply to seilogramp

Thank you very much, It worked.

0 duyngo 1 day ago

Hello, My watch crashed and rebooted again when saving the activity. It seems it is the SW's fault

0 flowstate 12 hours ago in reply to 1163477

1163477 said:
But all the health stats, that Garmin is calculating, are not considering manual imported activities.

I noticed that recovery time (for example) is affected if you start an activity but discard it. I *think* training load might also be affected too.

So it's possible that some of your training stats may have been updated even though the watch didn't save your activities properly.