Navionics SonarChart for use with Garmin chartplotters and handhelds have been successfully beta-tested on several Garmin GPS devices that use SD/MSD cards for their charts.

However, we must inform users that, in December 2014, Garmin announced a change to their software thus making their devices incompatible with Navionics charts. Customers that utilize software version 2015.0202 or newer will no longer be able to use Navionics charts.

For any enquiries on software updates on Garmin plotters please contact Garmin customer service (
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