The SIM PIN is an extra layer of protection designed to prevent unauthorized access to your SIM card. The carrier service typically provides the PIN or can be changed in your phone's settings.

Galaxy Note 5 SIM Management Guide: Change, Enable, Disable SIM PIN, Delete Messages, View Free Space By Harold Hisona October 31, 2018 February 10, 2023 2 Comments ...

Jack Wallen walks you through the process of adding a SIM PIN to help prevent anyone from accessing precious account information or using your data plan.