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Your phone displays “Service unavailable” or
“Network error.”
• When you are in areas with weak signals or poor
reception, you may lose reception. Move to
another area and try again.
• You cannot access some options without a
subscription. Contact your service provider for
more details.
You enter a number, but the call is not dialled.
• Ensure that you have pressed the Dial key: [
].
• Ensure that you have accessed the right cellular
network.
• Ensure that you have not set call barring for the
phone number.
Another caller cannot reach you.
• Ensure that your phone is turned on.
• Ensure that you have accessed the right cellular
network.
• Ensure that you have not set call barring for the
phone number.
PUK code
Your SIM or USIM card is blocked,
usually as a result of entering your PIN
incorrectly several times. You must
enter the PUK supplied by your
service provider.
Message
Try this to solve the problem:
F480i.book Page b Friday, May 8, 2009 7:38 PM