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 Start screen, swipe left to display the apps list.
Alternatively, tap All apps (located in the lower right; may require scrolling).
Tap Network & wireless.
Tap Cellular & SIM.
Tap SIM settings.
Under the "Security" section, tap Use SIM PIN.
Enter the current SIM PIN then tap OK (located above the numeric keypad).
The default SIM PIN is 1111.
To disable the SIM PIN, follow steps 1-5 then tap Remove SIM PIN.