How do I turn Rylo on and off? Press and hold Rylo's shutter button for two seconds to power it on or off. When powering on, Rylo's LEDs will turn green and its screen will turn on. When powering off, Rylo's screen and LEDs will turn off. You can you modify Rylo's sounds and haptic vibrations heard and felt during the powering cycle under Rylo's settings in-app.