The KnockON feature allows you to double-tap the screen to easily turn the screen on or off.
Quickly double-tap the center of the dark touchscreen to turn the screen on.
Quickly double-tap the Status Bar, an empty area on the Home screen, or the Lock screen to turn the screen off.
When turning the screen on (using the KnockON feature or your Knock Code), avoid covering the proximity sensor. Doing so will not allow you to turn the screen on.
While Knock Code is in use, double-tapping the screen while it's off will turn it on and display the Knock Code grid to allow you to enter your Knock Code.