● Power/Lock Key: Turns the phone on or off, turn the screen on or off, or lock the screen. Pressand hold for a Device options menu, where you can turn the phone off or restart it, or for easyaccess to Airplane mode, Emergency Mode, and to Mute, Vibrate, and Sound modes.● Back Key: Returns to the previous screen, or close a dialog box, options menu, the NotificationPanel, or onscreen keyboard.● Home Key: Returns to the Home screen.● Recent Apps: Displays a list of apps you have used recently. Press and hold to configure thehome screen.● Volume Key: Adjusts the volume of your phone’s sounds. From the home screen, press to adjustmaster volume. During calls or playback, press to adjust volume. Press to mute the ringtone of anincoming call.● 3.5 mm Headset Jack: Allows you to plug in either a stereo headset or an optional headset forconvenient, hands-free conversations.● Microphones: Allow other callers to hear you when you are using the speakerphone, andcaptures sound during recording.● Temperature and Humidity Sensor: Monitors both temperature and humidity conditions. This isused to calculate calories burned within S Health.● Infrared Transmitter: Controls other devices, such as a TV.● Heart Rate Sensor: Measures your heart rate when you hold your finger over the sensor, for usewith apps like S Health® .● USB Charger/Accessory Port: Connects the phone charger/USB cable (included) and otheroptional accessories (not included).● Speaker: Plays ringtones and sounds. The speaker also lets you hear the caller’s voice inspeakerphone mode.● Flash: Helps illuminate subjects in low-light environments when the camera is focusing andcapturing a photo or video.● Camera: Takes pictures and record videos.Caution: Inserting an accessory into the incorrect jack may damage the phone.Phone Basics 12
