If the phone lock is set to Automatic, you do not need to enter your phone lock code until a different SIM card is inserted in the phone.
To turn the phone lock on
1From standby select Menu > Settings > Advanced >
Security > Phone lock > Protection > On.
2Enter the phone lock code and select OK.
To edit your phone lock code
1From standby select Menu > Settings > Advanced > Security > Phone lock > Change code.
2Enter the current code and select OK.
3 Enter a new code and select OK.
4
If you forget your new code, you have to take your phone to your local Sony Ericsson retailer.
To unlock the phone
1From standby select Menu > Settings > Advanced > Security > Phone lock > Protection > Off.
2Enter your phone lock code and select OK.
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