Use a PIN to lock my SIM card

You can use a PIN for the SIM card in your Windows Phone to help prevent people from making unauthorized phone calls. After you set up your SIM PIN, you'll be prompted to enter it each time you start your phone.

SIM card

To turn on SIM security

  1. On Start , tap Phone 

    Phone Icon
     > More 
    More Icon
     > Settings.

  2. Turn on SIM security 

    Toggle On Icon
    .

  3. When prompted to Enter SIM PIN, enter the PIN for your SIM by doing one of the following:

    • If this is the first time you're setting up a PIN for the SIM in your phone, try typing 1234, and then tap Enter. 1234 is a common default PIN for some SIMs. If that PIN doesn't work, contact your mobile operator for the correct default PIN.
    • If you already set a PIN for your SIM (even if the SIM was in another phone when you did it), type your PIN, and then tap Enter. You'll get the message SIM PIN enabled.


To enter your SIM PIN

  1. With SIM security turned on, turn on or restart your phone.

  2. When prompted to Enter SIM PIN, type your PIN, and then tap Enter.

Warning

If the incorrect PIN is entered too many times, the SIM will be blocked by your mobile operator. If this happens, you'll need to contact your mobile operator for a PIN Unblocking Key (PUK) code. If an incorrect PUK code is entered too many times, your SIM card will be permanently blocked, and you'll need to get a new SIM card from your mobile operator.

To change the PIN for your SIM

  1. On Start , tap Phone 

    Phone Icon
     > More 
    More Icon
     > Settings.

  2. With SIM security turned on, tap Change SIM PIN.

  3. When prompted to Enter current SIM PIN, type the current PIN, and then tap Enter.

  4. When prompted to Enter new SIM PIN, type a new PIN, and then tap Enter.

  5. When prompted to Confirm new SIM PIN, type the new PIN again, and then tap Enter.

    You'll get the message SIM PIN changed.  

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Article ID: 11580 - Last Review: May 17, 2016 - Revision: 13

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