User manual

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Go to [Settings] > [Display & Brightness], set screen tone by dragging
the slider.
Switch on Eye-Protection Mode
ColorOS 7.1 makes it easier when you use the phone at night or under
dimming light. You can turn on the eyes-protective mode to reduce eye
strain and fatigue when exposing to digital display for a long time.
There are two types of eyes-protective mode.
Eye Care
 The Eye Care mode could help reduce the blue
light emitted from the display to prevent eye
fatigue.
 You can adjust the screen color temperature
from cool to warm. You also can set the
schedule time.
Low-Brightness
Flicker-Free Eye
Care
 When Low-Brightness Flicker-Free Eye Care is
turned on, eye fatigue will be much relieved as
it is in the minimum brightness in dimly-lit
environments. But the image noise may be
slightly increased if you turn on the none-
stroboscopic dim light mode.