Switching the lighting of physical buttons on and off

You can also turn off the illumination of the three physical buttons at the bottom, if it bothers you in the dark, if you can't see them in daylight, or just to save power (if your phone supports it). You can also get the right settings in a few simple steps:

• Open the Settings app
• Scroll down to the System menu, tap
• Scroll down to Buttons, tap on it
• At the bottom you will find the switch for the button lighting
• And underneath, a scrollable menu lets you choose how long they stay lit from the last time you touched them or switched them on