To open the Camera app

From the Home screen, tap Camera (in the QuickTap Bar).

OR
From the Lock screen, swipe from the right edge of the screen to the left.

OR
With the backlight off, press either of the Volume Keys for a few seconds.

TIP!

If you’ve set your phone to use the Swipe unlock method, from the locked screen, simply press the Power/Lock Key or the Home Key , then drag the Camera icon upward to open the Camera app.