My mobile phone can not connect to a network
Try connecting in another location
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Verify the network coverage with your operator
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Check with your operator that your SIM card is valid
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Try selecting the available network(s) manually
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Try connecting at a later time if the network is overloaded
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SIM card error
Make sure the SIM card has been correctly inserted
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Verify with your operator that your SIM card is 3V, 1.8V compatible; the old 5V SIM
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cards cannot be used
Make sure the chip on your SIM card is not damaged or scratched
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Unable to make outgoing calls
Make sure you have dialled a valid number and press the
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For international calls, check the country and area codes
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Make sure your mobile phone is connected to a network, and that the network is not
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overloaded or unavailable
Check your subscription status with your operator (credit, SIM card valid, etc.)
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Unable to receive incoming calls
Make sure your mobile phone is switched on and connected to a network (check for
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overloaded or unavailable network)
Check your subscription status with your operator (credit, SIM card valid, etc.)
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Make sure you have not forwarded incoming calls
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Make sure that you have not barred certain calls
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The caller's name or number does not appear when a call is received
Check that you have subscribed to this service with your operator
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Your caller has concealed his/her number
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key
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I cannot find my contacts
Make sure your SIM card is correctly inserted
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Import all contacts stored in SIM card to phone
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The sound quality of the calls is not optimal
You can adjust the volume during a call by means of the
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Check the signal strength level
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I am unable to use the features described in the manual
Check with your operator to make sure that your subscription includes this service
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I am unable to add a contact to my directory
Make sure that your phone memory is not full; delete some contacts or save the
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contacts in the phone directory (i.e. your professional or personal directories)
My callers are unable to leave messages on my voicemail
Contact your network operator to check service availability
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I cannot access my voicemail
Make sure your operator's voicemail number is correctly entered
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Try later if the network is busy
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I am unable to send and receive MMS
Check your phone's available memory as it might be full
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Contact your network operator to check service availability and check MMS parameters
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Verify the server centre number or your MMS profile with your operator
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The server centre may be swamped; try again later
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"No service" is displayed
You are outside of the network coverage area
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I have already entered 3 incorrect PIN codes
Contact your network operator to obtain the PUK code (Personal Unblocking Key)
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Volume key
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