To turn the SIM card lock on or off
1} Settings } the General tab } Security } Locks } SIM protection } Protection and select On or Off.
2Enter your PIN } OK.
Phone lock
Protect your phone against unauthorized use if it is stolen and the SIM card is replaced. You can change the phone lock code (0000) to any four- to
Automatic phone lock
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.
It is important that you remember your 
new code. If you forget it, you have to take your phone to your local Sony Ericsson retailer.
To set the phone lock
}Security } Locks } Phone protection
}Protection and select an alternative.
2Enter the phone lock code } OK.
To unlock the phone
If the phone lock is on, enter your code } OK.
To edit your phone lock code
}Settings } the General tab } Security
}Locks } Phone protection } Change code.
Keypad lock
Lock the keypad to avoid dialling a number by accident.
Calls to the international emergency 
number 112 can still be made, even when the keypad is locked.
Automatic keylock
Use automatic keylock in standby to lock the keypad soon after the last key was pressed.
To set the automatic keylock
}Settings } the General tab } Security
}Automatic keylock.
To lock the keypad manually
From standby, press 
} Lock keys. You can still answer an incoming call and the keypad locks again after the call. The keypad remains locked until you unlock it manually.
To unlock the keypad manually From standby, press 
} Unlock.
76More features
This is the Internet version of the user's guide. © Print only for private use.