Phone Basics 7
Key Functions
● Ambient Light and Proximity Sensor detects how close an object is to the surface of
the screen. This is typically used to detect when your face is pressed up against the
screen, such as during a phone call.
While talking on the phone, the sensor detects talk activity and locks the keypad to
prevent accidental keypresses.
● LED displays a phone notification, charging status, or alert.
● Volume Button allows you to adjust the ringtone or media volume or adjust the voice
volume during a call.
● Home Key returns you to the Home screen. Touch and hold to open the recently-
used applications window.
● Back Key lets you return to the previous screen, or close a dialog box, options
menu, the Notifications panel, or onscreen keyboard.
● Microphone transmits your voice for phone calls or records your voice or ambient
sounds for voice recordings and videos. The microphone on the back of the phone is
useful for capturing sound when recording videos.
● Menu Key allows you to access options available from the current screen with one
touch.
● Camera Button lets you activate the camera and take pictures or videos.
● Touchscreen displays all the information needed to operate your phone, such as the
call status, the Contacts list, and the date and time. Also provides one-touch access to
all of your features and applications.
● Power/Lock Button lets you turn the phone or the screen on or off, restart the phone, or
switch your phone to silent mode, vibration mode, or airplane mode.
● Front Camera Lens and Back Camera Lens let you take pictures and videos.
● Earpiece lets you hear the caller and automated prompts.
● UICC Card Cover protects your UICC card needed for connecting to the 4G network.
● Flash helps illuminate subjects in low-light environments when the camera is focusing
and capturing a picture or video.
● Speaker lets you hear the different ringtones and sounds. The speaker also lets you
hear the caller’s voice in speakerphone mode.
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