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Parts and Functions

This topic illustrates your phone’s primary parts and key functions.

Note: Your phone's screens and apps layouts are subject to change. This user guide uses sample images only.

Phone Layout

The following illustration outlines your phone’s primary external features and keys.

Front View

illustration of front with callouts




Listen to calls and automated prompts when using the phone.

Proximity sensors

Detect when objects are close to the screen. For example, when you hold the phone to your ear while on a phone call, the sensors temporarily lock the screen to prevent accidental screen touches.

Power/Lock key

Turn the phone or screen on or off, enable Emergency mode, or restart the phone.

Back key back key

Returns you to the previous screen, or close a dialog box, options menu, the notification panel, or the keyboard.

Home key

Returns you to the home screen.

Recent apps key recent apps key

Access recently used apps.


Display information needed to operate your phone, such as the call status, the Contacts list, and the date and time. Also provides one-tap access to all of your features and applications.

Volume key

Adjust the ringtone or media volume or adjust the voice volume during a call.

Front camera

Takes pictures and records videos while facing the screen, and allows you to video conference.

Back View

illustration of back with callouts




Transmit your voice for phone calls or record your voice or ambient sounds for voice recordings and videos. There are two microphones, one on the top and one on the bottom.


Help illuminate subjects in low-light environments when the camera is focusing and capturing a picture or video.

Rear camera

Take pictures and videos.

USB charger/accessory port

Connect the phone to the charger using a USB cable.

Headset jack

Plug in a headset for convenient, hands-free conversations.


Play ringtones and sounds. The speaker also lets you hear the caller’s voice in speakerphone mode.

Caution: Inserting an accessory into the incorrect jack may damage the phone.