Warnings And Precautions - Huawei U5120 User Manual

Problem
Bad call quality.
The signal strength is
not strong enough or
your phone is often
offline.
The phone cannot
find other Bluetooth
devices or fails to
send or receive data
via Bluetooth.

13 Warnings and Precautions

This section contains important information pertaining to the
operating instructions of your device. It also contains information
about how to use the device safely. Read this information carefully
before using your device.
Electronic Device
Power off your device if using the device is prohibited. Do not use
the device when using the device causes danger or interference
with electronic devices.
Medical Device
Follow rules and regulations set forth by hospitals and health

care facilities. Do not use your device when using the device is
prohibited.
Pacemaker manufacturers recommend that a minimum distance

of 15 cm be maintained between a device and a pacemaker to
prevent potential interference with the pacemaker. If you are
using a pacemaker, use the device on the opposite side of the
pacemaker and do not carry the device in your front pocket.
Potentially Explosive Atmosphere
Power off your device in any area with a potentially explosive
atmosphere, and comply with all signs and instructions. Areas that
may have potentially explosive atmospheres include the areas
where you would normally be advised to turn off your vehicle
engine. Triggering of sparks in such areas could cause an explosion
or a fire, resulting in bodily injuries or even deaths. Do not power
on your device at refueling points such as service stations. Comply
with restrictions on the use of radio equipment in fuel depots,
storage, and distribution areas, and chemical plants. In addition,
adhere to restrictions in areas where blasting operations are in
progress. Before using the device, watch out for areas that have
potentially explosive atmospheres that are often, but not always,
clearly marked. Such locations include areas below the deck on
boats, chemical transfer or storage facilities, and areas where the
air contains chemicals or particles such as grain, dust, or metal
powders. Ask the manufacturers of vehicles using liquefied
petroleum gas (such as propane or butane) whether this device can
be safely used in their vicinity.
Traffic Security
Observe local laws and regulations while using the device. In
addition, if using the device while driving a vehicle, comply with the
Ensure that...
The signal strength is strong

enough.
If you are indoors, move near a

window for better reception.
Move near to a place with strong
signal strength.
The Bluetooth function of both

devices is turned on.
The distance between the two

Bluetooth devices is less than 10
meters.
There are no obstacles between

the two devices.
The other Bluetooth device is set

to visible.
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