I'm having a strange problem with software vs 4.50 and my 310xt. In addition to the need to repair the device, now Express is transferring dozens of copies of the same activity. Attached is a screen grab showing the details, including >3hr expected transfer time, and a small portion of the duplicate activities. E.g. the June 18th one is shown 7 times just in ths tiny portion of the list!!
If the Activities are already uploaded to your Garmin Connect account I recommend deleting them from the device. If they have already been deleted but are still uploading with every Sync enable the Erase data on this device after successful syncing setting in Express.
In Garmin Express there is a settings to delete Activities from the device after Syncing. Enable this setting then Sync again. After the Sync is complete only the new Activities should Sync. This procedure can help even if the Activities are not showing up in the History menu on the device.
1. Open Express 2. Click Device 3. Scroll Down to Garmin Connect Account section 4. Select Erase data on this device after successful syncing 5. Create a new Activity on the watch. Make sure to press and hold the Lap/Reset button after stopping the counter 6. Allow Express to Sync
Once this is complete, future Syncs should only contain new Activities.
If you continue to have troubles, delete the contents of the C:\ProgramData\Garmin\LegacyProxy\ folder.
