Well, may be your phone does not have GPS set to on (because of battery exhausting) automatically, so please try to go to settings, location and security and try to set GPS on. Sony modified ROM has this feature and we probably are not able to force turn on GPS without this dialog (it could be some part of Sony security settings), but you can still use 4G/3G or wifi for localization. Please try it with the settings and let us know the result.