Huawei U3900 User Manual page 34

Do not attempt to disassemble your mobile phone or its
accessories. Only qualified personnel are allowed to
service or repair the phone.
Do not place your mobile phone or its accessories in
containers with a strong electromagnetic field.
Do not place magnetic storage media near your mobile
phone. Radiation from the phone may erase the
information stored on them.
Do not put your mobile phone in a high-temperature
place or use it in a place with flammable gas such as a
gas station.
Keep your mobile phone and its accessories away from
children. Do not allow children to use your mobile phone
without guidance.
Use only approved batteries and chargers to avoid the
risk of explosions.
Observe any laws or regulations on the use of wireless
devices. Respect others' privacy and legal rights when
using your wireless device.
Strictly follow the relevant instructions of this manual
while using the USB cable. Otherwise your mobile phone
or PC may be damaged.
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