PUK code unlock: Samsung Galaxy S 4G

Learn how to PUK unlock the Samsung Galaxy S 4G.




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. When the device displays ''PIN Blocked, tap Emergency Call.
    • Note: Tapping SOS will automatically dial an  emergency number. Enter the following character string:  **05*(PUK  number)*(New PIN)*(New PIN again)#
  3. Enter the following:  **05*PUK*NEWPIN*NEWPIN#
  4. The message ’PIN change Registration was successful ’ displays.
  5. Tap OK.