ZTE Axon 40 Ultra Benutzerhandbuch Seite 7

Power On/Off the Phone
Make sure the battery is charged before powering on. Press and hold the Power button
to turn on your phone.
To turn off your phone, press and hold the Power button until the power off/restart
menu appears, and then slide the turn off button.
Note: If the screen freezes or takes too long to respond, try pressing and holding the
Power key for over 10 seconds to restart the phone.
Waking Up the Phone
Your phone automatically goes into sleep mode when it is not in use for some time. The
display is turned off to save power and the keys are locked to prevent accidental
operations.
You can wake up your phone by turning on the display and unlocking the keys. First,
press the Power button to turn on the screen. Then swipe up on the screen.
Note: If you have set a face verification, a fingerprint, an unlock pattern, a PIN or a
password for your phone, you'll need to use your face or fingerprint, draw the pattern,
or enter the PIN/password to unlock your screen.
Lowering Blue Light
Blue light with wavelengths between 415 nm and 455 nm is considered harmful for the
eyes. It may cause eye discomfort, suppress melatonin, and affect sleep quality and
circadian rhythm. This product has the function of reducing blue radiant energy.
To avoid eye fatigue, it is recommended to place the product at an appropriate distance
from your eyes and rest for 20 minutes to look into the distance after two hours of
continuous viewing.
To enable eye protection, open the Settings app and touch "Display" > "Night Light" >
"Turn on now". Use "Turn on automatically" to enable eye protection between sunset
and sunrise or during customized time. In addition, you can adjust the protection effect
by changing the blue light filter and white point reduction levels.
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