How can I change your handset lock security code?

1. From the home screen press the Menu button.
2. Move the cursor to Settings and press the OK button.
3. Move the cursor to Security and press the OK button.
4. Move the cursor to Modify the cell phone password and press the Select button.
5. Enter the current password and press the OK button. (N.B. The default password is 1234.)
6. Enter the new password and press the OK button.
7. Re-enter the new password and press the OK button.