Basics23Turning the device on and offPress and hold the Power key for a few seconds to turn on the device.When you turn on your device for the first time or after performing a data reset, follow the on-screen instructions to set up your device.To turn off the device, press and hold the Power key, and then tap Power off.Follow all posted warnings and directions from authorised personnel in areas wherethe use of wireless devices is restricted, such as aeroplanes and hospitals.Restarting the deviceIf your device is frozen and unresponsive, press and hold the Power key and the VolumeDown key simultaneously for more than 7 seconds to restart it.Power keyVolume Down keyEmergency modeYou can switch the device to emergency mode to reduce battery consumption. Some appsand functions will be restricted. In emergency mode, you can make an emergency call, sendyour current location information to others, sound an emergency alarm, and more.Activating emergency modeTo activate emergency mode, press and hold the Power key, and then tap Emergency mode.The usage time left shows the time remaining before the battery power runsout. Usage time left may vary depending on your device settings and operatingconditions.Deactivating emergency modeTo deactivate emergency mode, tap → Turn off Emergency mode. Alternatively, press andhold the Power key, and then tap Emergency mode.
