I have a RC435i chart plotter with an installed Navionics US Northeast CF card. The chart data that is displayed is for Long Island Sound area which is where I purchased the boat. I brought the boat to Lake Ontario and there is no chart data displayed. Is there a way to unlock or load the local chart data onto the chart Plotter? The unit works great but is useless without chart data. Hate to get rid of it due to no charts available.
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