PUK code unlock: LG Optimus L90

Learn how to PUK unlock the LG Optimus L90. 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. 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. At the Enter PUK screen, enter the code provided by the Customer Care representative.
  4. Tap OK.
  5. Enter a new PIN.
  6. Tap Ok.
  7. Confirm the new PIN.
  8. Tap Ok.