Press Menu> Configure>System>System Information.
You should now see a screen that looks similar to the picture presented here.
Your software version may be different than that presented here.
We can update your system onboard your vessel or at the shop. If you are in need of this service please call us at 410-228-7335. Please note that Garmin updates don’t just affect the display unit. Other optional Garmin networked equipment attached such as radars, XM, GSD22, etc are updated as well. Because of this we recommend that all updates be done on board the vessel to maintain software update cohesion throughout the entire system. If you just have one display and nothing else on the network, sending the unit to us for updates should not be a problem.