Huawei U8100 User Guide - Manual (Page 171)

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Appendix
• Do not place your device, battery, and charger in places where
they can get damaged because of collision. Otherwise, it may
lead to battery leakage, device malfunction, overheating, fire,
or explosion.
• Do not place magnetic storage media such as magnetic cards
and floppy disks near the device. Radiation from the device
may erase the information stored on them.
• Do not leave your device, battery, and charger in a place with
an extreme high or low temperature. Otherwise, they may not
function properly and may lead to a fire or an explosion. When
the temperature is lower than 0°C, performance of the battery
is affected.
• Do not place sharp metal objects such as pins near the
earpiece. The earpiece may attract these objects and hurt you
when you are using the device.
• Before you clean or maintain the device, power off the device
and disconnect it from the charger.
• Do not use any chemical detergent, powder, or other chemical
agents (such as alcohol and benzene) to clean the device and
the charger. Otherwise, parts of the device may be damaged
or a fire can be caused. You can clean the device and the
charger with a piece of damp and soft antistatic cloth.