Back, start, and search key
The back, start, and search keys help you navigate your phone.
To switch between open apps, press and hold , swipe left or right, and tap the app you want.
To go back to the previous screen you were in, press . Your phone remembers all the apps and websites you've visited since the last time your screen was locked.
To go to the start screen, press . The app you were in remains open in the background.
To search the web, press .