Question about Samsung SGH-x427m

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I locked my sim

I locked myself out of my phone and is asking for "puk" code.

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  • mwr18754 Jun 28, 2008

    I have the puk code to unblock the sim card for a samsung x427m. How can I get to the point to insert the puk code. I can't seem to find it.



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I will need your Service Provider Network (call carrier) before I can provide you a direct you to the proper number to phone.

Or, if you already know the customer service number for your provider call them or you can take your phone to your service provider's phone store, ie Sprint, AT&T, T-Mobil, Verizon, etc. They are the only ones you can access and read the data on your simm card to unlock your phone. They will want some ID and proof this phone belongs to you. A recent phone bill will suffice.

How this problem presents itself:
When entering your pin code, you have three tries, after three failed attempts you will be asked for your PUK code. This actually was provided to you upon puchcase of your simm card. This is rather common in the EU where a new simm card is required for each country or set of countries sharing the same GSM network.

Sorry, but we are not privy to this information and will never be able to provide it for obvious security reasons. So, we cannot solve your problem and provide a fix. As a result, do not rate this posted solution, it isn't one. On the other hand, if this really is your phone and you didn't find or steal it then now you know what to do next. If this latter is the case then please rate this as fixed, it is a far as I can take you.


Posted on Jun 14, 2008

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Every SIM has its own PUK #, which is supplied by the Network Servers only.
Contact the Server immediately from other phone using same server SIM and request them to give the PUK # against ur SIM.
For instance, if u r using a VODAPHONE SIM, then talk to the Executive via customer care of Vodaphone from other mobile.

Supriyo DG

Posted on Jun 13, 2008


Check with costomer care

Posted on Jun 13, 2008

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Posted on Jan 02, 2017

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SOURCE: can't remember phone lock code

Puk code is needed when you have entered the pin code wrong 3 times.

If you have a phone lock code on it and you can't remember to code try the defaults 0000 1234 12345 00000 etc. if you can't unlock it contact your dealer with proof or pruchase or contact a samsung service center, you can get those details from you will most likely have to send the phone to be unlocked.

you can try entering these two codes without a sim card in the phone. write them where you would write 911 phone should restart. then insert the sim card and try turning the phone on.

*2767*3855# = Full Reset
*2767*2878# = Custom Reset

If these don't help then contact samsung for unlock service you will most likely have to send the phone to a service center.

Posted on Apr 26, 2009

  • 3422 Answers

SOURCE: i accidentally locked my phone and its asking for the PUK code.


The only way to fix this issue is to contact your service provider.Only they can help you get the PUK code.

Posted on Jul 08, 2009

  • 213 Answers

SOURCE: tocco lite phone freeze deactivate fail

here is some info on PUK codes:

try taking battery and SIM out waiting 15 seconds and powering cell back on.

In your case I believe your SIM is now FROZEN or locked. You mostlikely will need to purchase a new SIM card.

A PUK code (Pin Unlock Key) is required when you enter an incorrect PIN 3 times. After entering the wrong PIN 3 times, the card will be locked and you will need to get a PUK code from your service provider to unlock it.

If the wrong PUK code is entered ten times in a row, the SIM card becomes invalid and you will need to purchase a new SIM Card. The phone will display "PUK blocked call operator".

Posted on Mar 26, 2010

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1 Answer

I locked myself out of my phone and its asking for the PUK code and i dont know the PUK code.

The PUK code is provided by the service provider. Don't try to enter the wrong PUK. It will block the SIM card. So you have to do one thing. Switch off your mobile and remove the SIM card from your mobile.You can see 19 digit number in your SIM card. Please note it down. After that plz refix your SIM card and switch it on. Then you plz call your service provider from other mobile (it should be same network) and ask for PUK. They will provide PUK code when you give that 19 digit number. You can enter that PUK to your phone.

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PUK code


PUK (Presonal identety unlock code) only given by ur mobile operator
there is no way to know the puk..
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