Huawei B315 Series Quick Start Manual page 15

Keep the device away from electronic appliances that generate strong

magnetic or electric fields, such as a microwave oven or refrigerator.
During thunderstorms, power off your device and remove all cables

connected to it to protect against lightning strikes.
Do not use your device during thunderstorms to protect your device

against any danger caused by lightning.
Ideal operating temperatures are 0 °C to 40 °C. Ideal storage

temperatures are -20 °C to +70 °C. Extreme heat or cold may damage
your device or accessories.
Keep the device and accessories in a well-ventilated and cool area away

from direct sunlight. Do not enclose or cover your device with towels or
other objects. Do not place the device in a container with poor heat
dissipation, such as a box or bag.
To protect your device or accessories from fire or electrical shock hazards,

avoid rain and moisture.
Keep the device away from sources of heat and fire, such as a heater,

microwave oven, stove, water heater, radiator, or candle.
Do not place any object, such as a candle or a water container, on the

device. If any foreign object or liquid enters the device, immediately stop
using it, power it off, and remove all cables connected to it. Then, contact
an authorized service center.
Do not block device openings. Reserve a minimum of 10 cm around the

device to dissipate heat.
Stop using your device or applications for a while if the device is

overheated. If skin is exposed to an overheated device for an extended
period, low temperature burn symptoms, such as red spots and darker
pigmentation, may occur.
Do not touch the device's antenna. Otherwise, communication quality

may be reduced.
Do not allow children or pets to bite or suck the device or accessories.

Doing so may result in damage or explosion.
Observe local laws and regulations, and respect the privacy and legal

rights of others.
The device should be installed and operated with a minimum distance of

20 cm between the radiator and your body.
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