Trevi PHablet 4,5 S Manual De Usario página 51

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6
FAQS and Solutions
If you have any questions about the phone, please find the solutions from the table below.
FAQs
Poor reception
Echoes or noises
Shorter standby time
Failed to turn on your phone
SIM card error
Failed to connect to the
network
Failed to make a call
Causes
When you use your phone at poor
reception areas, for example, near high
rise buildings or base rooms, the radio
wave cannot be transmitted effectively.
When you use your phone at network
traffic congestion, such as working time
and off-duty time, the congestion can
result in poor reception.
This is related to the distance to base
station in question.
The trunk line of network is in bad
condition. It is a regional problem.
In some areas, the call lines are in bad
condition.
The standby time is relevant to network
settings.
Replace the batteries
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.
The battery power is used up.
The SIM card is damaged.
The SIM card is not properly installed.
The metallic face of the SIM card is
contaminated.
The SIM card is invalid.
Beyond the GSM coverage.
The signal is feeble.
The call barring feature is used.
The fixed dialing number feature
is used.
51
Solutions
Avoid this as far as you can.
Avoid this as far as you can.
You may ask the network service
provider to provide service coverage
map.
Hang off the call and dial again. Choose
another better line.
In poor reception areas, turn off your
phone temporarily.
Change with a new battery.
Use your phone at strong signal areas
or Turn off the phone temporarily.
Check the battery power level or charge
the battery.
Contact your network service provider.
Ensure the SIM card is properly
installed.
Wipe the face with a clean cloth.
Contact your network service provider.
Consult the network service provider
for service areas.
Retry at a stronger signal area.
Cancel the call barring settings.
Cancel the fixed dialing number
settings.
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