Sony K600i User Guide

84

Troubleshooting

Error messages

Possible cause: There is no SIM card in the phone 
or you may have inserted it incorrectly.
Solution: Insert a 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.

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.

Possible cause: You have entered your PIN or PIN2 
incorrectly.
Solution: Enter the correct PIN or PIN2 

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Possible cause: You have entered your PIN or PIN2 

code incorrectly three times in a row.

Solution: To unblock, 

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.

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, 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 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.