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Sim net work pin number - Sony Cell Phones

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If you forgot your pin number, you can enter it wrong 3 times, then the phone will ask for PUK code, you can get this code by calling the service provider / carrier, to unlock the phone.

If you enter the code wrong too many times it will become blocked at which point you will need a new sim card.

Posted on Oct 03, 2010


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PUK and PIN are two security features provided by the service provider. It wrong PUK or PIN are provied more than three times the SIM gets locked and has to be replaced by the service provider for a small charge to retaing your phone number.

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Any sim card has a pin code(4 digits). Sometimes it is activated some times not. If you put in the pin code 3 times wrong, your simcard willl be locked. To unlock it you will need a PUK code which is a 13 digit number. You usually get it at the same time with your sim card. If you put in the PUK code wrong 10 times then you won't be able to use it anymore and have to contact your Net provider to get a new Sim card.


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I enter in my sim pin to change it but it won't let me change the

Switch your phone off,and switch on,

Then wait for about 5-10 minutes, and retype your pin again.

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just go straight 2 your sim card provider, ok? then if u are using an iphone, you can go to the net and visit thier website, there they will give u a solution.

i'm J-kennedy

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lindipsy, it seems that the phone is asking you for your SIM's pin number. it should be written on it somewhere.
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