18
This is related to the
distance to base
station in question.
You may ask the
network service
provider to provide
service coverage
map.
Echoes or
noises
The trunk line of
network is in bad
condition. It is a
regional problem.
Hang off the call and
dial again. Choose
another better line.
In some areas, the
call lines are in bad
condition.
Shorter
standby time
The standby time is
relevant to network
settings.
In poor reception
areas, turn off your
phone temporarily.
Replace the batteries
Change with a new
battery.
When no signals are
received, your phone
will continue
searching for base
stations, thus
consuming a large
amount of battery
power and reducing
standby time.
Use your phone at
strong signal areas or
Turn off the phone
temporarily.
Failed to turn
on your phone
The battery power is
used up.
Check the battery
power level or charge
the battery.
SIM card error
The SIM card is
damaged.
Contact your network
service provider.
The SIM card is not
properly installed.
Ensure the SIM card
is properly installed.
The metallic face of
the SIM card is
contaminated.
Wipe the face with a
clean cloth.
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