I recently picked up a Garmin XT. Updated the maps with Garmin Express.
Launched Basecamp, it recognized the XT and locked up. Found a solution on Garmin's forum for basecamp. In file explorer locate the POI file on the internal storage drive of the XT. Delete the...
For those that would like to learn how to use Garmin's Basecamp the New England Riders BaseCamp PC and MAC Tutorials have been updated in early 2019. Thanks to Gérard Friedman we now have a MAC version translated to French.