Jonathan's phone has been reporting inaccurate location information. It's always connected to the data network. Leo says that the data network often defaults to the data center which can change. Leo says to try a different app to see if it's an app centric issue or a phone issue. He should go to Google Maps. It will tell him where he is at all times and he can see where the GPS is reading in its history. It could be a failing GPS chip, or sometimes the location information being transmitted from the network.