Activity does not show up on my phone

Assuming you can see the activity on your watch, try a manual upload from your Garmin device to Garmin Connect Web - How Do I Manually Upload an Activity I Recorded to Garmin Connect?

I tried it. But it seems like this file is missing something.

Here's a SC of name of this file and it's not looking same as the other ones.

And here's an error that occurs when I try to upload it.

It says: "The imported file type is not supported."

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.

F12H3327.zip

This will work, but it will be missing the individual exercises performed. - F12H3327-fixed.fit

There were some strange data records that caused this, mainly erroneous dates and GPS distances (of course there shouldn't be any GPS during strength training).

Some suggestions to help minimize the occurrence of corrupt fit files. HRM-Pro Plus will sometimes corrupt activity fit files, so I'd check this out:

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

It works! Thank you a lot!

Have a great day!