Enabling the Subscriber Identity Module (SIM) Personal Identification Number (PIN) locks the SIM card so it can't be used until the correct code is entered. If the incorrect PIN code is entered too many times, refer to Locating the 4G SIM PIN/PUK - My Verizon Website to obtain a new PIN Unblocking Key (PUK).
From a Home screen navigate: Apps >Settings.
In the Personal section, tap Security.
From the SIM card lock section, tap Set up SIM card lock.
Tap Lock SIM card to enable or disable .
Enter the SIM PIN then tap OK or . If prompted (first set up) create a SIM PIN then tap OK.