Article ID : SX025704 / Last Modified : 18/02/2022

The SIM card is locked, what can I do?

    If you enter your PIN (Personal Identification Number) code incorrectly several times, the SIM card is locked. You then need the PUK (Personal Unblocking Key) code to unlock the device. The PIN and PUK codes are used to protect your subscription and device against unauthorised use. To get help with your PIN and PUK codes, contact your network operator. 

    To unlock a blocked SIM card using the PUK code

    1. Enter the PUK code and tap OK or the arrow.
    2. Enter a new PIN code and tap OK or the arrow.
    3. Re-enter the new PIN code and tap OK or the arrow.

    Note! If you enter an incorrect PUK code too many times, you need to contact your network operator to get a new SIM card.

    SIM card protection

    You can lock and unlock each SIM card that you use in your device with a PIN (Personal Identity Number). When a SIM card is locked, the subscription linked to the card is protected against misuse, meaning that you have to enter a PIN every time you start your device.

    Android 8.0

    To lock or unlock a SIM card

    1. Find and tap Settings → Lock screen & security →  SIM card lock.
    2. Tap the switch beside Lock SIM card to lock or unlock the SIM card.
    3. Enter the SIM card PIN, then tap OK.

    Android 7.0

    To lock or unlock a SIM card

    1. Find and tap Settings →  Lock screen & security →  Set up SIM card lock.
    2. Tap the slider next to Lock SIM card to lock or unlock the SIM card.
    3. Enter the SIM card PIN and tap OK.

    Android 4.1, 4.2, 4.3, 4.4, 5.0, 5.1 or 6.0

    To lock or unlock a SIM card

    1. Find and tap Settings →  Security → Set up SIM card lock.
    2. Mark or unmark the Lock SIM card checkbox.
    3. Enter the SIM card PIN and tap OK.

    Android 4.0

    To lock a SIM card

    1. Find and tap Settings → Security → Set up SIM card lock →  Lock SIM card.
    2. Enter the SIM card PIN and tap OK.

    Android 2.3

    To lock a SIM card

    1. Find and tap Settings → Location & security →  Set up SIM card lock →  Lock SIM card checkbox.
    2. Enter the SIM card PIN and tap OK.

    Android 8.0

    To change the SIM card PIN

    1. Find and tap Settings →  Lock screen & security →  SIM card lock.
    2. Tap Change SIM PIN.
    3. Enter the old SIM card PIN, then tap OK.
    4. Enter the new SIM card PIN, then tap OK.
    5. Re-type the new SIM card PIN, then tap OK.

    Android 7.0

    To change the SIM card PIN

    1. Find and tap Settings →  Lock screen & security →  Set up SIM card lock.
    2. Tap Change SIM PIN.
    3. Enter the old SIM card PIN and tap OK.
    4. Enter the new SIM card PIN and tap OK.
    5. Re-type the new SIM card PIN and tap OK.


    Android 4.0, 4.1, 4.2, 4.3, 4.4, 5.0, 5.1 or 6.0

    To change the SIM card PIN

    1. Find and tap Settings → Security → Set up SIM card lock.
    2. Tap Change SIM PIN.
    3. Enter the old SIM card PIN and tap OK.
    4. Enter the new SIM card PIN and tap OK.
    5. Re-type the new SIM card PIN and tap OK.

    Android 2.3

    To change the SIM card PIN

    1. Find and tap Settings →  Location & security → Set up SIM card lock.
    2. Tap Change SIM PIN.
    3. Enter the old SIM card PIN and tap OK.
    4. Enter the new SIM card PIN and tap OK.
    5. Re-type the new SIM card PIN and tap OK.