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Geoffro

My Navionics gold card has expired.
The sonarchart live feature used to map the sea floor where ever I travelled and this usefull chart was available on subsequent trips.
I was surprised to see the mapping has disappeared off my Axiom 9 sounder.
I believed it would be stored on my sounder as it was written but cannot find it in files or anywhere, only on screenshots I saved.

Is it retrievable?
Renewing Navionics rego wont help because they will send me a new card.
If I do get a new card and map my fishing areas how can I save and store this info?

Thanks in advance.