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HUAWEI MC850/MC851 Media Phone User Guide 1 Safety Precautions
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Make sure that the device does not get wet. If water gets into the device, disconnect
the power supply immediately and unplug all the cables connected to the device,
such as the power cable, telephone cable, and then contact the appointed
maintenance center.
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The power supply of the device must meet the requirements of the input voltage of
the device.
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Before plugging or unplugging any cable, shut down the device and disconnect the
power supply.
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While plugging or unplugging any cable, make sure that your hands are dry.
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Do not step on, pull, or overbend any cable. Otherwise, the cable may be damaged,
leading to malfunction of the device.
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Do not use old or damaged cables.
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Keep the power plug clean and dry, to prevent electric shock or other dangers.
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During lightning, disconnect the device from the power supply, and unplug all the
cables connected to the device, such as the power cable, telephone cable, to avoid
lightning strike.
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If the device is not used for a long time, disconnect the power supply and unplug the
power plug.
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In any of the following cases, stop using the device immediately, disconnect the
power supply, unplug the power plug and other cables: smoke, sound, or smell is
emitted from the device. Contact the appointed maintenance center for repair.
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Make sure that no object (such as metal shavings) enters the device through the heat
dissipation vent.
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Do not scratch or abrade the shell of the device. The shed painting may lead to skin
allergy or malfunctions of the device. If the shed painting material drops into the
host, a short circuit may occur.
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Stop the USB device before removing it.
Cleaning Requirements
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Before cleaning the device, stop using it, disconnect the power supply, and unplug
all the cables connected to the device, such as the power cable, telephone cable.
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Do not clean the device shell with any cleaning solution or cleanser spray. Use a
piece of soft cloth to clean the device shell.
LCD Usage Requirements
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Do not expose the LCD surface to direct sunlight.
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Do not press, scratch, or beat the LCD, or place heavy objects on top of it.