SIM PIN: Apple iPhone 4

Learn how to lock and unlock the SIM PIN on the Apple iPhone 4.

 

 

 

Change SIM PIN

  1. From the Home screen, tap Settings.
  2. Tap Phone.
  3. Tap SIM PIN.
  4. If necessary, drag the SIM PIN slider to ON. The default SIM PIN is 1234.
    • Tap Change  PIN.
    • Enter the Current PIN.
    • Enter the New PIN.
    • Confirm New PIN.
    • Tap Save.

     

    Turn on / off SIM PIN

    The SIM PIN code can protect your SIM from being used in other devices. When you turn on the SIM PIN lock, the device prompts you to enter the code after turning it on.

     

    1. From the Home screen, tap Settings.
    2. Tap Phone.
    3. Tap SIM PIN.
      • Drag the SIM PIN slider to ON.
      • Drag the SIM PIN slider to OFF.