Huawei S7 Quick Start Manual page 12

Do not use the device where using wireless devices is prohibited
or may cause interference or danger.
The radio waves generated by the device may interfere with the
operation of electronic medical devices. If you are using any
electrical medical device, contact its manufacturer for the
restrictions on the use of the device.
Do not take the device into operating rooms, intensive care units
(ICUs), or coronary care units (CCUs).
Areas with Inflammables and Explosives
Do not use the device where inflammables or explosives are
stored, for example, in a gas station, oil depot, or chemical plant.
Otherwise, explosions or fires may occur. In addition, follow the
instructions indicated in text or symbols.
Do not store or transport the device in the same box as
inflammable liquids, gases, or explosives.
Accessory Requirements
Use only the accessories supplied or authorized by the device
manufacturer. Otherwise, the performance of the device may get
affected, the warranty for the device or the laws and regulations
related to telecommunications terminals may become null and
void, or an injury may occur.
Do not use the power adapter if its cable is damaged. Otherwise,
electric shocks or fires may occur.
Ensure that the power adapter meets the specifications indicated
on the device nameplate.
Ensure that the power adapter meets the requirements of Clause
2.5 in IEC60950-1/EN60950-1 and it is tested and approved
according to national or local standards.
For pluggable device, the socket-outlet shall be installed near the
device and shall be easily accessible.
Battery and Charger
Unplug the charger from the electrical plug and the device when
not in use.
The battery can be charged and discharged hundreds of times
before it eventually wears out. When the standby time and the talk
time are shorter than the normal time, replace the battery.
Use the AC power supply defined in the specifications of the
charger. An improper power voltage may cause a fire or a
malfunction of the charger.
Do not connect two poles of the battery with conductors, such as
metal materials, keys, or jewelries. Otherwise, the battery may be
short-circuited and may cause injuries and burns on your body.
Do not disassemble the battery or solder the battery poles.
Otherwise, it may lead to electrolyte leakage, overheating, fire, or
explosion.
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