Takes you back one screen.

Opens the Camera app for taking pictures and recording videos.

Opens Chrome™, the web browser powered by Google™.

Opens the Gallery app.

Takes you to the last Home screen you were on. If you're on a Home screen, it will take you to the main Home screen.

Opens the keypad and Phone app for placing calls.

Shows the apps you've recently opened, letting you switch between and close apps that are running.

Plays audio and lets you hear phone calls.

Connects your phone to the battery charger or to another device for transferring data.

Opens the Message+ app for sending and receiving text, picture and video messages.

Lets you adjust the device volume.