Upon turning on your NavNet, you will eventually see a completely black screen containing a disclaimer.  At the bottom of the screen, you will see a long list of numbers.  Like the picture on the left.  This is version 24 of a Navnet 1 (Navionics).  Don’t pay any attention to the number after the comma [...]

We offer a conversion process of changing your unit from C-map to Navionics or vice-versa.  Please keep in mind all of your settings will need to be redone as they will be lost in the conversion process.  This also includes radar settings.  Please call our staff and inquire about this process if you have any [...]

NN3D V2.02 Software (latest 6-29-09)
It is very important that you stay in touch with the latest software for Furuno’s Navnet3D system.  If you find that you do not have the latest version and would like to have us install it, contact our staff to schedule a service call to your vessel or drop-off/ship the unit [...]

If you are experiencing problems with your vx2 unit you may need a software upgrade.  This is a service that we can provide for you either on the bench or onsite.  Your waypoints/routes/user settings will be saved during the process.  If you need this upgrade please call and speak to our staff.
Ver 3.04, 07 C-MAP [...]

Check your software.  If you need an upgrade, we can perform one for you.  Listed below is the latest software version for the Navnet 1 by Furuno.  Depending on what version you have, your unit may need to be set back up and seatrialed.
Navionics V25 CMap V21 BB v1.09: 4/7/07
A note on your battery [...]