Huawei MMC255u Quick Start Manual page 2

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.
Safety of Children
Keep the device and its accessories out of the reach of
children. Otherwise, they may damage the device and its
accessories by mistake, or they may swallow the small
components of the device, causing suffocation or other
dangerous situations.
Other Requirements
Maintenance
• If the device is not used for a long time, power it off, and
then remove all the cables connected to it.
• If any exception occurs, for example, if the device emits
any smoke or unusual sound or smell, stop using the
device immediately, power it off, remove all the cables
connected to it, and then contact an authorized service
center.
• If the device screen is broken by colliding with hard
objects, do not touch or try to remove the broken part. In
this case, stop using the device immediately, and then
contact an authorized service center in time.
• Do not trample, pull, or overbend any cable. Otherwise, the
cable may get damaged, causing malfunction of the
device.
• Before cleaning the device, stop using it, power it off, and
then remove all the cables connected to it.
• Use a clean, soft, and dry cloth to clean the device shell.
Do not use any cleaning agent or spray to clean the device
shell.
Environmental Protection
• Do not dispose of the device and the accessories in a
garbage can.You need to dispose of them according to the
local regulations on disposing of packing materials,
exhausted batteries and abandoned devices, and support
the recycling activity.
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