Samsung SGH-E316CSAAWS - Manual (Page 125)

Phone Settings
121
Change PIN
This feature allows you to change your current PIN to
a new one, provided that the PIN Check feature is
enabled. You must enter the current PIN before you
can specify a new one.
Once you have entered a new PIN, you are asked to
confirm it by entering it again.
Phone Lock
When the Phone Lock feature is enabled, the phone
is locked and you must enter an 8-digit phone
password each time the phone is switched on.
The password is preset to “00000000” at the factory.
To change the phone password, see the Change
Password menu (Menu 6.5.4) on the following page.
Once the correct password has been entered, you
can use the phone until you switch it off.
The following options are available:
Disable: you are not asked to enter the phone
password when you switch the phone on.
Enable: you are required to enter the phone
password when you switch the phone on.
Change Password
The Change Password feature allows you to change
your current phone password to a new one. You must
enter the current password before you can specify a
new one.