1. TURN ON/OFF COMFORT VIEW: Swipe down from the Notification bar, then select the Settings icon.
    device 5220/9007172_01.jpg
  2. Select the Display tab, then select Comfort view.
    device 5220/9007172_02.jpg
  3. Select the Use Comfort view switch.
    device 5220/9007172_03.jpg
  4. Select and drag the Blue light filter to the left or the right to manually adjust the level of blue light.
    device 5220/9007172_04.jpg
  5. Select the Black & white switch to view your device's screen in black & white.
    device 5220/9007172_05.jpg
  6. QUICKLY TURN ON/OFF COMFORT VIEW: Swipe down from the Notification bar with two fingers, then select Comfort view.
    device 5220/9007172_06.jpg