PUK code unlock: ZTE ZMAX Pro

Learn how to PUK unlock the [Device Name]. If you enter a PIN code incorrectly several times in a row, the device blocks you from attempting again and may also permanently damage your SIM card.




Identifying PUK code error messages

Confirm customers are receiving one of the following or similar error messages on their devices.


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


Entering PUK codes

  1. The device will automatically prompt you for the PUK code when you power it on.
  2. Enter the PUK code and tap OK.
  3. Enter and confirm your new PIN.