Sony Ericsson Cybershot K550i User Manual page 74

Possible cause: Your phone is not
receiving any radio signal, or the
received signal is too weak.
Solution: Contact your network
operator and make sure that the
network has coverage where you are.
If so, search for a network.
Possible cause: The SIM card is not
working properly.
Solution: Insert your SIM card in
another phone. If you still get the same
or a similar message, please contact
your network operator.
Possible cause: The phone is not
working properly.
Solution: Insert your SIM card in
another phone. If this works, it is
probably the phone that is causing the
problem. Please contact the nearest
Sony Ericsson service location.
Emerg. calls only
Possible cause: You are within range
of a network, but you are not allowed
to use it. However, in an emergency,
some network operators allow you to
call the international emergency
number 112.
74 Troubleshooting
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Solution: You have to move to get a
signal that is strong enough. Contact
your network operator and make sure
you have the right subscription
%
22 Emergency calls.
Phone lock
Possible cause: The phone is locked.
Solution: To unlock the phone
%
68 Phone lock.
Phone lock code:
Possible cause: The phone lock code
is required.
Solution: Enter a phone lock code.
Your phone has a default phone lock
%
code 0000 68 Phone lock.
PUK blocked. Contact operator.
Possible cause: You entered your
personal unblocking key code (PUK)
incorrectly 10 times in a row.
Solution: Contact your network
operator.
Charging, alien battery
Possible cause: The battery that you
are using is not a Sony Ericsson-
approved battery.
%
Solution: 78 Battery.