At Pub night, I was asked how to check your software version for a GPSmap 60Cx. The answer escaped me at the time; but this is how it is done: Go to MAIN MENU, go to SETUP, go to SYSTEM, press MENU button, choose Software Version. For the GPSmap 60Cx the most current software is version 4.00.
If you download the
GARMIN updater, it will identify your GPS and let you know if the software needs updating.