Aug 09, · Google Maps for Android lets you save maps to an SD card. The "WiFi only" feature is also official. Steve Dent, Download, gear, google, GoogleMaps Author: Steve Dent. Click the Windows “Start” button and select “Computer.” Click the entry for the TomTom device under the Removable Devices section. Click the entry for the SD card to open the card in Windows Explorer. Feb 26, · Now the device starts using IGO on the SD card. IGO seeks its maps in the direction where it is installed, that is now also the SD card. In that way I could extent the "memory" (external) to load the full Europe maps. However, I really would like to run IGO on the device itself and let it seek the maps or the CONTENT map on the SD card.