If not, then how to update the map?
It depends where you bought itIf you want to buy in the 4S shop to buy their own updates should be free of charge
There are more well-known brands of navigation, generally have their own dedicated sites can provide map updates to download, or some direct supply of the store, if not always out of the way, you do not have to buy navigation.
It depends where you bought itIf you want to buy in the 4S shop to buy their own updates should be free of charge
