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PUK are included in your simpack when you buy a phone or a new sim card. Try to find the sim pack and look for the PUK code. You only have 3 attempt in encoding the code before it will totally block. So be careful putting the PUK code into your phone. You can also ask for assistance regarding this problem to your service provider.
A PUK (Personal Unblocking Key) is the code required for enabling/unlocking a sim card. This disabling/lock is a result of erroneously entering the PIN (Personal Identification Number)
multiple times. Depending on the SIM card issuer, erroneously entering
the PUK code multiple times would result to a permanently
blocked/disabled SIM card. The PUK code is an OTW (one time write) only and therefore the only way to open the card is with the PUK code.
In all instances, it has nothing to do with the phone itself but with the SIM card, hence, the LG Vu CU920 would still work with another SIM card.
Hope that this be of initial help/idea. Good luck and thank you for using FixYa.
you have entered the pin code wrong 3 times now you are required to enter a puk code to reset the pin code.
The puk code is sim card spesific it comes with the sim card when you get it or you can get it by calling your phone service provider of the sim card to get the puk code.
if you have entered the puk code wrong too many times you will make the sim card useless and you will have to contact your phone service provider for a new sim card, it will probably cost.
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