How to update Garmin Mobile XT card gps software. you can update operating portion of the Garmin Mobile XT software via free downloads from the Garmin website. These updates include bug fixes, stability improvements, and even sometimes feature and interface changes.
Mobile XT can only be updated through a Windows PC. This can be done through the Mobile device, but Garmin recommends the use of a memory card reader.
To update Garmin Mobile XT:
1. Make sure that your XT card is in the device, or card reader
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