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 the Home screen, navigate: Settings > Cellular Data > Cellular Data Options.
Tap SIM PIN.
Tap the SIM PIN switch to turn on or off .
Enter the current SIM PIN then tap Done (upper-right).
The default SIM PIN is 1111.