You need a PUK ( Pin Unblocking Key) code to be able to unblock the counter of you PIN ( Personal Identification Number ) . The code can be found enclose on your sim package .If its not in their,then you have to call your service provider operator and request for that code,or you can go directly in their wireless center for fast approval.
When you already receive the code, just enter it on your mobile that ask for a PUK code,after unlocking it,enter a new PIN code and it will ask to re-enter it again for confirmation.be sure you encode the exact numbers to avoid errors.
Now enjoy using your mobile....
One reason for a blocked SIM card is that you may have given wrong PIN or PUK codes. These two are security feature provided by the service provider. And If the SIM card gets blocked, you have to get a new SIM card on a small charge to retain the old number, from the service provider. Please call up their helpline from a friends phone and ask for a new SIM card with the same number.
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