13 14
Warning and Notice
To the User
 
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If inadequately shielded, some electronic devices, for 
example, the electronic system of vehicles, may be aected 
by the electromagnetic interference caused by the device. 
Consult the manufacturers of such devices before using the 
device if necessary.
 
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Operating the device may interfere with medical instruments 
such as hearing aids and pacemakers. Always keep the 
device more than 20 centimeters away from such medical 
instruments when your device is powered on. Power 
o the device if necessary. Consult a physician or the 
manufacturers of medical instruments before using the 
device if necessary.
 
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Be aware of the usage limitation when using the device at 
places such as oil warehouses or chemical factories, where 
there are explosive gases or explosive products being 
processed. Power o the device if necessary.
 
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Do not use electronic transmission devices in aircraft, at 
petrol stations or in hospitals. Observe and obey all warning 
signs, and power o the device in these conditions.
 
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Do not touch the inner antenna area unless necessary. 
Otherwise the performance of the device may be aected.
 
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Do not use the device in an enclosed environment or where 
heat dissipation is poor. Prolonged work in such space 
may cause excessive heat and raise ambient temperature, 
which may lead to automatic shutdown of the device for 
your safety. In the case of such an event, cool the device in 
a well-ventilated place before turning on for normal use.
 
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Keep the device out of the reach of small children. The 
device may cause an injury if used as a toy.
 
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When the device is operating, do not touch the metallic 
parts. Failing to do so may cause burns.
 
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Use original accessories or accessories that are authorized. 
Using any unauthorized accessories may aect the 
performance of the device and violate the related national 
regulations about telecom terminals.
 
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Avoid using the device near or inside metallic constructions 
or establishments that can emit electromagnetic waves, 
because signal reception may be aected.
 
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The device is not waterproof. Keep the device dry and store 
it in a shady and cool place.
 
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Do not use the device immediately after a sudden 
temperature change, because dew may be generated 
inside and outside the device. Do not use it until it becomes 
dry.
 
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Handle the device carefully. Do not drop, bend or strike it. 
Otherwise the device may be damaged.
 
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Only qualied personnel can dismantle and repair the 
device.