If you own a TomTom GPS Sat Nav then the chances are at some point you will have experienced your maps on the device not being completely up to date. Download.This video walks through the Map update process on TomTom VIA , GPS device. The video also demonstrate how to download the My TomTom .TomTom Maps. Getting map updates for your TomTom can be a bit of a pain. Arguably, the most annoying part of the update process is paying for new map updates..Here you find the latest maps for GPS like iGO, Garmin, Sygic, United States, Europe, Germany, Australia etc..