Sony Ericsson Z520a Cell Phone User Manual


 
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79
Troubleshooting
3 } Yes to continue.
4 Enter the phone lock code (0000 or the new
code if you have changed it) } OK.
Error messages
Insert SIM
Possible cause: There is no SIM card in the phone
or you may have inserted it incorrectly.
Solution: Insert a SIM card. % 8 To insert SIM card
and battery.
Possible cause: The SIM card connectors need
cleaning.
Solution: Remove the SIM card and clean it. Also
check that the card is not damaged in a way that
may prevent connection to the phone connectors.
In that case, contact your network operator for a
new SIM card.
Insert Correct SIM Card
Possible cause: The phone is set to work only with
certain SIM cards.
Solution: Check if you are using the correct
operator SIM card for your phone.
Wrong PIN/Wrong PIN2
Possible cause: You have entered your PIN or
PIN2 incorrectly.
Solution: Enter the correct PIN or PIN2 } Yes.
% 74 SIM card lock.
PIN Blocked/PIN2 Blocked
Possible cause: You have entered your PIN or
PIN2 code incorrectly three times in a row.
Solution: To unblock,
% 74 SIM card lock.
Codes do not match
Possible cause: The two codes that you have
entered do not match.
Solution: When you want to change a security code
(for example your PIN) you have to confirm the
new code by entering exactly the same code again.
% 74 SIM card lock.
No Netw. Coverage
Possible cause: Your phone is not receiving any
radio signal, or the received signal is too weak.
If you select Reset All, content such as melodies and
pictures that you have downloaded, received or edited
is also deleted.