Set the power button to open Camera, assistant and more

You can customise the Power button, controlling what happens when you press it twice and when you press and hold it.

Press and hold the power button
  1. Go to Settings > Gestures.
  2. Tap Press & hold power button.
  3. Choose what you want the gesture to do:

    If you select a choice other than Power menu, then to see the Power menu for turning off and restarting, you'll need to press the Power + Volume up buttons simultaneously.

  4. To adjust how long you need to press and hold to start the selected action, move Press and hold duration.
Press the power button twice
  1. Go to Settings > Gestures.
  2. Tap Double-press power key.
  3. Choose if you want to open the Camera or start a voice command. If you don't want anything to happen, choose No action.