PUK
stands for 'Pin Unlock Code', and has to be entered if you've locked
your SIM by repeatedly entering the wrong PIN code. If you're asked for
a
PUK code, you've had more goes at guessing your SIM card PIN code
than you're allowed. You'll need to phone your network provider
Customer Services for your
PUK code to unlock the SIM. For security
reasons, it's only the network operator that can legally provide you
with a
PUK code to unlock your SIM.With some phones you will get a cert card with your sim card and it might have the 8 digit
PUK on it. if this has been entered 10 times or more
incorrectly then you will need a new sim card
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