Corrupt Activity Fit File

Do a manual upload from your Garmin device to Garmin Connect Web - How Do I Manually Upload an Activity I Recorded to Garmin Connect?

If you get any message other than Import Complete, then there is a problem with the file. Attach it to this thread. We can take a look to see if it is repairable.

• Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
• Or upload the fit file to a reputable file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.
• Or if you'd rather your activity remained private, you can send me a private message. I've set my account to allow PMs from everyone.

Fixed using Fit File Repair Tool

Some suggestions to help minimize the occurrence of corrupt fit files:

• Sync your device then remove all activity fit files from your Garmin device using these directions - Removing Recorded Activities on a Garmin Fitness Device 
• Check for firmware updates using Garmin Express

FIT File Tools will fix it. I ran it through the section remover without any adjustments. Upload to Garmin Connect, then change the activity type from other to whatever it should be.

HRM-Pro, Pro Plus, Tri, and Swim will sometimes corrupt activity fit files 

• Use the HRM download feature only after an activity where it was not possible to wear the watch
• Update the HRM firmware How Do I Update the HRM-Pro Software Using the Garmin Connect App?
• During the HRM-Pro download process keep the strap and watch in close proximity
• If issues persist even after the firmware update, contact Garmin Support
• More here about corrupted HR data: Corrupt FIT File Repair Requests