Hi guys,\n\nAnybody knew how to create Garmin GPS Gmapsupp.img file. Using Garmin 64s for now. My former boss manage to create this Gmapsupp.img file back in year 2011 but he already resign and i can't contact him nowadays. Didn't have the chance to learn from him before. The only thing he told me that he using free software and he did it with shapefile. Need to update the Gmapsupp.img to current ground features.\n\nPlease help.