You will usually see a notification show up on the phone that will prompt you to enter your PUK code.  Follow the instructions on the phone to complete the process. Different mobile phones will have different steps, but most will inform you they've locked the phone down and that you need to type in the PUK code. If you’ve had to enter your PUK code because you had the PIN code wrong, once you enter the PUK code, you will need to input a new PIN for the SIM card.  After you have done so, your cell phone should be unlocked, and you will be able to use it again. Some phone users must enter **05* before entering the PUK code. Then, enter the 8-digit PUK card and hit enter. Nexus One users should type in the **05*, their PUK number, *, their new PIN number, *, their new PIN number again, #.
अपने मोबाइल फोन पर पीयूके कोड एंटर करें: एक नया पिन कोड एंटर करें: