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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Must the card be in the phone for Garmin Mobile XT to work?
the Garmin Mobile XT data card must be in the phone when wanting to navigate. Most of the navigation software and all of the detailed maps are stored on the data card. There is a very small amount of data saved on the internal memory of the Smartphone or PDA.

can I install garmin Mobile XT on the memory of cell phone?
the Garmin Mobile XT software is designed be loaded to a memory card in order to be installed to a Palm, Symbian, or Windows Mobile Pocket PC device. It is strongly recommended that you use a 256 MB card or larger, even though the specifications states that the requiredminimum is 128 MB.
Although some files are transferred to the internal memory of your phone, the majority of Mobile XT system and application files (including voice files) stay on the card. …