Sony Ericsson k750i Cell Phone User Manual


 
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80
Troubleshooting
Insert correct SIM card.
Possible cause: The phone is set to work only with
certain SIM cards.
Solution: verify whether you are using the correct
service provider 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.
% 73 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,
% 73 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.
% 73 SIM Card Lock.
No Netw. Coverage
Possible cause: Your phone is not receiving any
radio signal, or the received signal is too weak.
Solution: Contact your service provider and make
sure that the network has coverage where you are.
If so, try to do a new search.
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 service provider.
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 service providers allow you to call
the international emergency number 112.
Solution: You have to move to get a signal that
is strong enough. Contact your service provider
and make sure your subscription is ok.
% 20 Emergency Calls.