I have a TomTom520T with a Truck package (on SD card) thich I've been using for 2-3 years now; when I last up-dated it on Home a new system was downloaded onto the card which is NOT a truck system! I have lost all truck related useage and the machine is now "car only" - If I remove the SD card & turn the unit on I get a screen saying "No Map Found" !!
Any idea what I can do - I am new to all this and don't even know what a Navcore is! so please don't assume anything!!
Thanks