Codes and passwords

Your phone’s 4-digit unlock code is originally set to 1234. If your service provider didn’t change the code, you should change it:
Press > Settings > Security > New Passwords
If you forget your unlock code: At the Enter Unlock Code prompt, try entering 1234 or the last four digits of your phone number.

If you forget other codes: If you forget your security code, SIM PIN code, PIN2 code, or call barring password, contact your service provider.