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.
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 you have the right subscription
Possible cause: The phone is locked.
Solution: To unlock the phone
Possible cause: The phone lock code is required.
Solution: Enter a phone lock code. Your phone has a default phone lock code 0000 % 85 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.
Possible cause: The battery that you are using is not a Sony Ericsson- approved battery.
Solution: % 95 Battery.
Troubleshooting 91
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