Samsung Rugby II User Manual page 106

Change Security Code
This option allows you to change your current Security Code to a
new one. Once you enter a new code, you are asked to confirm it
by entering it again.
Change PIN Code
This option allows you to change your current PIN, provided that
the PIN Check feature is enabled. You must enter the current PIN
before you can specify a new one. Once you enter a new PIN, you
are asked to confirm it by entering it again.
Change PIN2 Code
The Change PIN2 option allows you to change your current PIN2
to a new one. You must enter the current PIN2 before you can
specify a new one. Once you enter a new PIN2, you are asked to
confirm it by entering it again.
Note: If your SIM card does not require a PIN2 password, this menu does not
display.
Reset Phone
You can easily reset your phone to its default settings. To reset
your phone:
In Idle mode, select
1.
Phone.
98
Settings Phone Reset
  
At the All Settings reset to factory defaults. Continue?
2.
prompt, press Yes to reset, or No to cancel.
Enter your phone password, and press the Confirm soft
3.
key.
After the phone settings are reset, the Reset Phone Done
4.
confirmation displays.
Once your phone has been reset to its default settings, it will
restart itself in order to activate the new settings.
Note: User Data such as contacts, messages, pictures, videos, and music is
not deleted.