86.Quick Start Guide6.1 Keys FunctionKeys Function Description:Power button Short press to sleep/wake up, long press to startup andshutdown.Volume +(up) increase the volumeVolume -(down) decrease the volumeHOME button ( home ) Click it in any interface will return to main interface.Back button(back) click it in any interface will return to previous menuMenu button This button will display in menu interface.display recently-usedapplicationdisplay recently browsed history6.2 Startup and ShutdownStartupLong press POWER key for three seconds, you can enter into startup picture. The systementers into screen lock status, please unlock it.Shutdown1. Long press POWER, it will pop up shutdown window.2. Shut down window contains mute mode, airplane mode and shutdown three options/3. Click Shutdown is the last step.