There are two ways you can get your lost PUK code. The first method is to visit your sim provider's nearest service center and ask the staff to retrieve your PUK code for you. After verifying that you're the real owner of the sim card, they will get you your O2 sim PUK code in no time. The second way is to utilize O2's official website to
Ask your carrier to help you unlock your SIM card using the default SIM PIN or PUK code. If you can't unlock your SIM card using the SIM PIN or PUK code or if an alert says, "PUK exhausted," ask for a new SIM card. *If you enter the wrong SIM PIN too many times, your wireless carrier might be able to give you a Personal Unlocking Key (PUKHELP! How do I unlock a SIM card that is PUK locked. My phone locked me out last night and I have used 5 of my 8 tries attempting to guess the code. I have not ever set a code so am confused. I tried calling Verizon but they are very busy and suggested I go to the Verizon site. I've done both and can't seem to find the info I need. What next?
The PUK is unique to your SIM card. To get the code, you need to either: Contact us online or with another phone. For your security, you must be the account holder or authorized user to verify. Use the PUK Code printed on the card your SIM came in. Make sure the SIM card number matches the card. Once you have the PUK code, follow the unlocka3eyr.