Many people don’t know about these six hidden phone functions: You can quickly mute incoming calls or notifications by pressing the volume down button without ending the call. To turn off the flashlight without unlocking the screen, press the volume down button twice. Adjust the phone’s volume directly by using the volume buttons, and they can also be used to take photos or videos in the camera app. For quick screenshots, hold the power and volume down buttons together. Lastly, some phones let you flip e-book pages using the volume buttons.
