How to easily perform a screenshot?
Simultaneously press the volume down and power button to capture a screen shot.
You can also use Capture+ function to perform a screenshot.
How to use
1. With the screen on, swipe down and tap Capture+ from the Quick Settings menu.
Alternatively tap Capture + from the Second Screen.
2. Tap the Checkmark then select Gallery. Your image will be saved to the gallery
in Capture+ folder.