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Forerunner 35 USB sync fails

Former Member
Former Member
My Forerunner 35 is connected via USB to my laptop (W10 with Garmin Connect). October 7, 2017 was the last time my running activty was synchronised at connecting time. After this day synchronising fails. The same problem occurs with Bluetooth synchronisation with my Microsoft Lumia 650.
Any suggestion?
  • Probably a corrupt file. What error messages do you get?
  • Former Member
    0 Former Member over 7 years ago
    Try syncing the files manually. Plug the watch in to a computer and open it in a file explorer like Windows Explorer or Finder. Open the Garmin folder and then the Activities folder. You should see all your activities stored here as .fit files. Then open the Garmin Connect website and click the cloud icon at the top and select "Import Data". Now you can drag all your fit files over manually one at a time. If you find one that will not upload you know that is what's causing the error. Now just delete the activities folder and if you are on a Mac empty the trash on your computer. I hope this helps.