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Formatting the Memory Card on an Automotive Device
Sometimes a microSD card may require formatting before it can be used with a Garmin device. A microSD card 64 GB or larger has to be formatted on the device itself.
To Format the Memory Card:
Touch Settings
Touch Device
Touch Storage & USB
Select your memory card
Touch the menu button
Touch Settings or Storage Settings
Touch Format
Touch ERASE & FORMAT or FORMAT SD CARD
Touch Done
The device will format the card and it will be ready to use.