Posted: 28/12/2014 at 16:10
Yes Laura, remove Ant device, switch 610 off then back on again then reconnect the Ant. Then, if necessary, scan for device.
I don't actually have a 610 but assume the menus are fairly standard across all Forerunners. You should be able to check if the update has intalled on your watch either by going into the 'settings' menu and selecting 'about Forerunner', or, if you're using Garmin Express, I think it tells you what software you're on in the top left hand corner of the Express screen.