Lock code
Your phone’s lock code is used to lock and unlock your phone.
Depending on your service provider, the default lock code is
either 1234 or the last four digits of your phone number.
Use Menu 4 3 2 3 to change the lock code.
When the phone requires the lock code, it displays Enter
lock code:. Enter the code, then press OK.
If you enter a wrong lock code five times in succession, your
phone prompts you for the security code.