How to Find a Card ID on a Garmin


Garmin GPS devices allow you to add memory and extra data to your device by including an SD card. To read your SD card, the Garmin device may prompt for a card ID number. While Garmin brand data cards come with a card ID number, generic cards do not so you will need to find a card ID in your device for the data card to work.

  • Insert your compatible data card into your Garmin device and turn the Garmin device on.

  • Touch the top right corner of the touch screen for 10 seconds. A new menu will appear. Click "Next" on the menu until you reach a new screen that reads "Data Card Test Page."

  • Write down the 10-digit number that says "Serial." While this is not the serial number that the manufacturer provided for your data card, it is the card ID number your Garmin GPS device needs.

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