Google Pixel 3a - Modify SIM PIN

Note The SIM card must be locked (SIM PIN enabled) in order to change the current SIM PIN.

  1. From a Home screen, touch and swipe up to display all apps.
  2. Navigate: Settings Settings app icon > Security & Location Security and Location icon.
  3. Tap Advanced.
  4. Tap SIM card lock.
  5. Tap Change SIM PIN.
  6. Enter the old SIM PIN (current SIM PIN) then tap OK.
  7. Enter the new SIM PIN then tap OK.
  8. Re-enter the new SIM PIN then tap OK.