TCL onetouch 4022S, Руководство пользователя

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My phone can't connect to a network or "No service"
is displayed
• Try connecting in another location.
• Verify the network coverage with your operator.
• Check with your operator that your SIM card is valid.
• Try selecting the available network(s) manually.
• Try connecting at a later time if the network is
overloaded.
My phone can't connect to the Internet
• Make sure that the internet access service of your
SIM card is available.
• Check your phone's Internet connection settings.
• Make sure you are in a place with network coverage.
• Try connecting at a later time or another location.
Invalid SIM card
• Make sure the SIM card has been correctly inserted.
• Make sure the chip on your SIM card is not damaged
or scratched.
• Make sure the service of your SIM card is available.
Unable to make outgoing calls
• Make sure you have dialled a valid number and have
pressed the call key.
• For international calls, check the country and area
codes.
• Make sure your phone is connected to a network,
and the network is not overloaded or unavailable.
• Check your subscription status with your operator
(credit, SIM card valid, etc.).
• Make sure you have not barred outgoing calls.
• Make sure that your phone is not in flight mode.
Unable to receive incoming calls
• Make sure your phone is switched on and connected
to a network (check if the network is overloaded or
unavailable).
• Check your subscription status with your operator
(credit, SIM card valid, etc.).
• Make sure you have not forwarded incoming calls.
• Make sure that you have not barred certain calls.
• Make sure that your phone is not in flight mode.
The caller’s name/number does not appear when a call
is received
• Check that you have subscribed to this service with
your operator.
• Your caller has concealed his/her name or number.
I can't find my contacts
• Make sure your SIM card is not broken.
• Make sure your SIM card is inserted properly.
• Import all contacts stored in SIM card to phone.
The sound quality of the calls is poor
• You can adjust the volume during a call by pressing