1. Swipe down from the
Notification bar, then select theÂ
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Settings icon.
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2. Select
Display, then select
Comfort view.
3. To enable comfort view, select the
Use Comfort view switch.
4. To manually adjust the level of blue light, select and drag the
Blue light filter slider to the
left or the
right.
5. Select the
Black & white switch to view your device's screen in black and white.