PIN & password: Google Nexus 4

    Learn how to lock, unlock, and PUK unlock the Google Nexus 4. 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 All apps AllAppsicon.jpgicon.
    2. Tap Settings.
    3. Tap Personal.
    4. Tap Security.
    5. Tap Screen lock.
    6. Tap Password.
    7. Choose your password.
    8. Verify your 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 All apps AllAppsicon.jpgicon.
    2. Tap Settings.
    3. Tap Personal.
    4. Tap Security.
    5. Tap Screen lock.
    6. Tap one of the following options:
      • Slide
      • Face Unlock
      • Pattern
      • PIN
      • Password
      • None (To turn off screen lock.)
    7. Note: If you have enabled the screen lock, you will have to enter your pattern, PIN, or password first in order to select None.
    8. Follow the on-screen instructions to set up the desired screen lock option.

     

     

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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. Tap the Phone icon to open the dialer.
    3. Note: If your phone is not yet PUK locked, touch Emergency Call on the screen where you enter the PIN code.
    4. Enter **05*[PUK]*[New PIN]*[New PIN]#
      Note:
      If this does not work, enter only the PUK code, then the new PIN if prompted.
    5. When the phone displays 'Unblocking PIN: Registration was successful' 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 All apps AllAppsicon.jpgicon.
    2. Tap Settings.
    3. Tap Security.
    4. Tap Set up SIM card lock.
    5. If necessary, tap Lock SIM card to select the check box and enable, and then enter your current SIM PIN and tap OK.
    6. Tap Change SIM PIN.
    7. Enter your current SIM PIN.
    8. Note: The default SIM PIN is 1234.
    9. Tap OK.
    10. Enter the new SIM PIN.
    11. Tap OK
    12. Re-enter the new SIM PIN.
    13. 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 All apps AllAppsicon.jpgicon.
    2. Tap Settings.
    3. Tap Security.
    4. Tap Set up SIM card lock.
    5. If necessary, tap Lock SIM card to select the check box and enable, and then enter your current SIM PIN and tap OK

     

     

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