Updating garmin nuvi 350 updating a table using php
Garmin periodically issues updates for the firmware that gives increased functions and fixes bugs. I use it hiking, biking, boating and in my car and even use it as an MP3 player when bike riding.
If you have a removable drive on your computer (SD card or thumb drive) and create a \Garmin folder at the root of this drive, then copy the file Garmin from your nuvi into this folder, the Garmin programs like POI Loader and my. Boyd speculated that you might be able to use this quirk to fool the map update installer and directly install a map update to a SD card.
It took some experimentation and several tries, but I was able to install the complete map on SD with both of my nuvis.