UTOK 500Q HD User Manual page 15

Reasonable use
It should be used normally. It is absolutely forbidden to put
on the condition with an extremely high temperature (over
60 Celsius degrees). For example, do not put it under the
window where it can be exposed to the sunshine directly.
Remember to use wet or antistatic cloth, instead of using
any cloth with static electricity to clean it.
Emergency call
Make sure your mobile phone is powered on and on the
service area, if you would like to make an emergency call
number such as 911, press the dial key and confirm your
location, simply explain what has happened, and don't
terminate the call without any permission.
Note: Like any mobile phone, emergency call may not be
supported due to the network coverage and wireless signal
transmission. Some networks even don't support the 112
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