Question on Garmin lake maps

[haus9393]

Here's the difference between lake vu on Champlain vs the garmin navionics chip I recieved. Unfortunately I guess the chip was shut down by garmin so I'm guessing if I update my graph I will loose capability

[hawgripper]

Here's the difference between lake vu on Champlain vs the garmin navionics chip I recieved. Unfortunately I guess the chip was shut down by garmin so I'm guessing if I update my graph I will loose capability

i don't know much about champlain but that just looks like standard G2 charting. If you update your Garmin you will loose the ability to run the navionics. In saying that, there are a few new features that the update has and any bug fixes. I know garmin is still running their sonar boats so maybe they will make it to champlain this year. Its a very popular lake to fish and boat.