Enabling the Subscriber Identity Module (SIM) Personal Identification Number (PIN) locks the SIM card so that it cannot be used until the correct code is entered. If the incorrect PIN code is entered too many times, a PIN Unblocking Key (PUK) must be obtained from Verizon Wireless.
From the home screen, select Apps (located in the lower-right).
From the APPS tab, select Settings.
From the PERSONAL section, select Security.
From the SIM CARD LOCK section, select Set up SIM card lock.