Onix Navionics Question

I recently purchased a new Humminbird Onix 10 Si and my Navionics Card will not work. When you check the card slots it doesn't see the card. The card works fine in my Lowrance Hds 7 but not the Onix. Got any ideas what might be the problem? Thanks

Did you check both cards slots to see if the issue is maybe a faulty card reader?

Is your Navionics card older than 2005?
Did you corrupt the card by using it for other than the maps that are on it?

My ONIX 10 SI reads every card I have, Lakemaster, 7-Navionics, and other cards for software updates, recordings, snapshots, and waypoint management.

My Navionics card is about 4 years old and it's never been updated and necer been out of my Hds7 until i tried it in my onix. i also tried both slots. Thanks

How about question three?

isn't there an option in settings to choose map?

Yes there is. Certainly you don't think the OP didn't read the operating instructions !!!!!

Three choices, Humminbird (Lakemaster), Navionics, and C-MAP.
Plus Auto Chart Live overlay.