Once the SIM is removed, it should be placed in a SIM card reader. There are hundreds of SIM card readers available in the marketplace, and all major mobile forensics tools come with an included reader that will work with their software. Oftentimes, the forensic tools will also support third-party SIM readers as well. Select Show PUK code > Once you have your PUK code, enter this into your phone to unblock your SIM. Please take care when you enter your PUK code - if you enter the wrong PUK code 10 times in a row, you will block your SIM card and we'll need to send you a new one. More help with your PUK code. If you need more help with your PUK code, contact Many carriers now issue "All-In-One" or universal SIM cards - just pop out the size your device needs. This section covers the processes to get a replacement SIM card for each carrier. SIM Locks & PUK Codes. For safety, you can lock your SIM card to particular devices - but if you forget your unlock PIN number, you'll need a special PUK PUK code (Personal Unblocking Key) is a a key of 8 digits that comes with your SIM card in order to be able to unblock it in case you have forgotten your PIN code. How to retrieve a PUK code? Once the PUK recovered and validated, you will be asked to choose a new PIN. Caution! .

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