18Section 2: Understanding Your PhoneFront View of Your PhoneThe following items can be found on the front of your phone.1. External speaker: Used to hear the caller.2. Proximity and light sensors: The Proximity sensordetects how close an object is to the surface of thescreen (such as when your face is against the phoneduring a call or the phone is in your pocket), locks thekeys to prevent accidental key presses, and turns offthe screen. Light sensors use the ambient light level toadjust screen brightness and contrast.3. Front-facing camera lens: Used to photograph yourself,or view yourself while video chatting.4. Display: Shows the information needed to operate yourphone, such as the Application Tiles, icons, and so on.5. Back key: Used to step backwards when navigating amenu or web page. Touch and hold the Back key toview the current screen and up to six screens mostrecently displayed.4386 7512
