Nubia NX521J User Manual page 73

Emergency calls
To make an emergency call your phone must be turned on and in an area

where there's network coverage. Dial the national emergency number and
touch 'send'. Explain exactly where you are and don't hang up until help has
arrived.
Working temperature
The working temperature for the phone is between 0℃ and 40℃. Please don't

use the phone outside the range. Using the phone under too high or too low
temperature might cause problems.
Eyesight
Please do not use your phone in dim light for a long time to avoid damage on

your eyesight.
For some people, exposure to flashing lights (such as TV) might trigger

seizures or dizziness. If you have a history of seizures or epilepsy, consult a
doctor before playing video games or enabling a flashlight feature on your
phone.
Safety information
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