I have a new (Dec 17) installation of Axiom Pro 12, a master and slave. A software upgrade (3.3) to interface XM Weather was done three weeks ago and I now have no marine detail in chart mode, no depths, markers, detail, etc. I found out the upgrade was done in the master, but the Navionics card was left in the slave during the software upgrade. Could this have wiped my card?, and if so, what are my next steps.
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