Basics45Edge lightingThe Edge screen lights up when you receive a call or notification while the device’s screen isfacing downwards.On the Apps screen, tap Settings → Display and home screen → Edge screen, and then tapthe Edge lighting switch to activate it.You can reject incoming calls using custom rejection messages. While the device’s screen isfacing downwards, hold your finger on the sensor on the back of the device for two secondsto reject calls.On the Apps screen, tap Settings → Display and home screen → Edge screen → Edgelighting → Quick reply, and then tap the switch to activate it.To edit the default rejection message, tap the message text under QUICK REPLY MESSAGE.

Samsung SM-G935F User Manual