User Guide
Page 66
... This is locked. Enter the correct PIN or PIN2, and press YES. Codes do not match. To unlock the phone, see "SIM card lock" on page 64. Charging, alien battery The battery you are using is not a Sony Ericssonapproved battery and is not on and the number you have previously worked, ...try again later as the network server may be temporarily busy or experiencing problems. Memory full Free memory by entering it to confirm the new code by deleting unused files or information. The two codes that you have entered do not match When you have to any four- See "Phone lock"...
... This is locked. Enter the correct PIN or PIN2, and press YES. Codes do not match. To unlock the phone, see "SIM card lock" on page 64. Charging, alien battery The battery you are using is not a Sony Ericssonapproved battery and is not on and the number you have previously worked, ...try again later as the network server may be temporarily busy or experiencing problems. Memory full Free memory by entering it to confirm the new code by deleting unused files or information. The two codes that you have entered do not match When you have to any four- See "Phone lock"...