V650 sync solution
For those of you who have recently joined this thread, there is a solution that works for syncing your V650 to a Windows PC:
- switch off all of the protections for your virus checker, or use the settings to exclude the folder C:\Program Files (x86)\Polar\*
- connect your V650
- open the Device Manager (Control Panel->Hardware and Sound->Device Manager) and uninstall the NDIS Internet Sharing Device
- scan for hardware changes
The USB sync then miraculously works.
You may get a message afterward that the driver installation failed, but repeating the same sequence each time does work. If you had to switch off all the protections, don't forget to turn on the virus checker afterwards!