Why am I getting a “SIM is locked” message on my phone?

The SIM Card on your mobile device will become locked if you enter in an incorrect SIM PIN 3 times.  The default Altice Mobile SIM PIN is “1234”.

To unlock your SIM Card, you must reset the PIN by entering your SIM Card’s unique PUK (PIN Unlock Key).

To unlock your SIM Card

  1. Message Us to obtain your PUK (PIN Unlock Key).
  2. Enter the PUK (PIN Unlock Key) into your mobile device.
  3. Enter a new SIM PIN.

Note:  Entering an incorrect PUK (PIN Unlock Key) 10 times will permanently lock your SIM Card.  If the SIM Card becoming permanently locked, you will need to swap it for a new SIM Card.  If you need a new SIM Card, please visit an Altice Mobile Store or Message Us.

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