182GPSCertain Samsung mobile devices can use a Global PositioningSystem (GPS) signal for location-based applications. A GPSuses satellites controlled by the U.S. Government that aresubject to changes implemented in accordance with theDepartment of Defense policy and the 2008 Federal Radionavigation Plan (FRP). Changes may affect the performanceof location-based technology on your mobile device.Even with GPS, when you make an emergency call:• Always tell the emergency responder your location to the best ofyour ability; and• Remain on the mobile device for as long as the emergencyresponder instructs you.NavigationMaps, directions, and other navigation-data, including datarelating to your current location, may contain inaccurate orincomplete data, and circumstances can and do change overtime. In some areas, complete information may not beavailable. Therefore, you should always visually confirm thatthe navigational instructions are consistent with what you seebefore following them. All users should pay attention to roadconditions, closures, traffic, and all other factors that mayimpact safe driving or walking. Always obey posted road signs.Emergency CallsThis mobile device, like any wireless mobile device, operatesusing radio signals, wireless and landline networks, as wellas user-programmed functions, which cannot guaranteeconnection in all conditions, areas, or circumstances.Therefore, you should never rely solely on any wirelessmobile device for essential communications (medicalemergencies, for example). Before traveling in remote orunderdeveloped areas, plan an alternate method ofcontacting emergency services personnel. Remember, tomake or receive any calls, the mobile device must beswitched on and in a service area with adequate signalstrength.Emergency calls may not be possible on all wireless mobiledevice networks or when certain network services and/ormobile device features are in use. Check with local serviceproviders.To make an emergency call:1. If the mobile device is not on, switch it on.2. From the Home screen, touch to launch the PhoneDialer.