1. Find "Phone lock"
Press the Navigation key.
Select Settings.
Select Security.
Select Phone lock.
2. Turn use of phone lock code on or off
Select On to turn on the function.
Key in the phone lock code (default is 1234) and press the Navigation key.
Select Off to turn off the function.
Key in the phone lock code (default is 1234) and press the Navigation key.
3. Return to the home screen
Press Disconnect to return to the home screen.