PIN & password: Samsung Galaxy S II

    Learn how to lock, unlock, and PUK unlock the Samsung Galaxy S II. Find out more on this page:

     

    Device lock

    PUK code unlock

    SIM PIN

     

     

    Device lock

    Change device lock password / PIN

    To change device lock password or PIN, follow these steps:

     

    1. From any Home screen, tap the Menu key.
    2. Tap Settings.
    3. Tap Security.
    4. Tap Screen lock.
    5. Tap Password.
    6. Enter the desired password.
      • Note: Password must contain at least one letter, be a minimum of 4 characters, and a maximum of 16 characters.
    7. Tap Continue.
    8. Re-enter the password.
    9. Tap OK.

     

     

    Turn on / off device lock

    To turn on or turn off the device lock password or PIN, follow these steps:

     

    1. From any Home screen, tap the Menu key.
    2. Tap Settings.
    3. Tap Security.
    4. Tap Screen lock.
    5. Tap None.

     

     

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    PUK code unlock

    PUK code unlock

    Related errors:

    • 'PIN code blocked. Enter PUK code:'
    • 'Enter PUK code'
    • 'SIM card locked. Emergency calls only. Please contact Customer Care'

     

    If you enter a PIN code incorrectly several times in a row, the device blocks you from attempting again. To enter a PUK code and unblock the PIN, follow these steps:

     

    Important: You must call Customer Care for the PUK code. Entering the wrong code can permanently damage your SIM card.

     

    1. Contact Customer Care to request your PUK code.
    2. When the device displays 'SIM card is PUK-Locked. Please contact Customer Care’, tap Emergency Call.
    3. Enter the following: **05*PUK*NEWPIN*NEWPIN#
    4. Tap OK.

     

     

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    SIM PIN

    Change SIM PIN

    To change the SIM PIN code, follow these steps:

     

    1. From any Home screen, tap the Menu key.
    2. Tap Settings.
    3. Tap Security.
    4. Tap Setup SIM card lock.
    5. Tap Change SIM PIN.
    6. Tap to enter the old SIM PIN code.
      • Note:The default SIM PIN code is 1234.
    7. Tap OK.
    8. Enter the new SIM PIN code.
    9. Tap OK.
    10. Enter the new SIM PIN code again to confirm.
    11. Tap OK.

     

     

    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.

     

    To lock and unlock the SIM card, follow these steps:

     

    1. From any Home screen, tap the Menu key.
    2. Tap Settings.
    3. Tap Security.
    4. Tap Setup SIM card lock.
    5. Tap Lock SIM card to enable/disable feature

     

     

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