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Dear Freinds:

I am purchasing a Garmin Data Card for my Garmin 276c. Can U use this card in my Garmin 178c which also takes the Garmin Data Card? The 276c is portable and I used it often on other boats where my 178c is not present. Please note that I am not talking about their SD cards.

Can I assume that the data on the card will be unaffected by where the card is inserted? I won't be saving any data to the cards.

Thank you

Gorji

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If it is the same size card it will work.........I have a Garmin 188c and I have used it in several other models with no problem. If it fits in the slot it should work with no problem

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Thanks. I'd thought that the card may get modified once inserted into the GPS and become not useable in my other GPS.

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if you go to www.garmin .com site and scrool to the model machine you have it will come up with card it uses .good luck

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If you look on the card itself you will see a small movable slot like the ones on a SD card that prevents anything from being written on it also.

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A little update:

I purchased Canada East Garmin Data Card (preprogrammed). Inserted into my 276c and beautiful maps showed up.

Yesterday went to the boat which is 2 hours away. Put the same card in and my 178c took it but I never got past "reading card" message. I shut the GPS down and restarted. Same issue.

The SW version is 2.20 and Basemap Worldwide Marine version is 1.0 I have 2 theories on why it did not work:
1. It need a firmware update; none since 2006 and there have been several although none of the firmware descriptions state its needed to read the card.
2. My 276c put a code into the card so it can only be the GPS reading it.

Any thoughts?

To do a firmware update I will have to buy a Garmin Data Card Reader (USB); another $40. It just does not end!!

Thank you
Gorji