Sony Ericsson Z520, User Manual

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77
Troubleshooting
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.
Solution : You have to move to get a signal that is
strong enough. Contact your network operator and
make sure your subscription is ok.
%
20 Emergency
calls.
Phone locked
Possible cause : The phone is locked.
Solution : To unlock the phone,
%
71 Phone lock.
Phone lock code:
Possible cause : The phone lock code is required.
Solution : Enter the phone lock code. Your phone
comes with the default phone lock code 0000.
You can change it to any four- to eight-digit code.
%
71 Phone lock.
PUK blocked
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 :
%
81 Battery use and care .
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