I have been having a problem with my Navionics Hot Maps Premium card in my Lowrance X18C Sonar/GPS/Plotter. Once a lake is located, and I begin zooming in to view depth and structure, all keys become inactive until the unit is powered down and then powered back up again. If I put in a different card such as Lake Ontario, everything seems to work fine. A call to Navionics suggested that I return the card for a new one which they would offer 50% credit (-$100) off a new updated version which would end up costing me another $100. I would be satisfied if I could get the card (1 1/2 years old) working the way it should if possible.
Helpful advice appreciated.
Helpful advice appreciated.