The PUK code (from English PIN Unlock Key, which could be translated as “PIN code unlocking key”) is a unique code, generally made up of 8 digits and associated with the SIM card of your mobile phone. When you generate the lock code on your SIM card and enter the lock code three times incorrectly, your phone will be blocked, and you will need the PUK code to access it again. Fortunately, this code is not hard to find.
Part 1 of 3: Use the PUK code
Step 1. Know when you need it
If, as an additional security measure, you have decided to protect your SIM card with a PIN code, each time you switch on your mobile phone, you must enter it to access the usual functions of your device. Otherwise, the PUK code is only needed if you have entered a PIN code incorrectly and repeatedly.
- You will receive a message stating that the phone is blocked. When this happens, you need to enter the PUK code to access your phone again.
- If you enter an incorrect PUK code 3 times, your SIM card will be blocked. When you enter wrong PUK code 10 times or more, the SIM card will be blocked permanently. PUK code is also commonly referred to as PUC code, but it is the same thing. It is made up of 8 digits.
Step 2. Understand how the PUK code works
This is a digital code, which is used to protect access to your mobile phone's SIM card. Remember that it is unique and linked exclusively to your SIM card.
- In addition, there are other cases where you need to know your PUK code. The most frequent case is when you always want to use the same number when you want to change telephone operator.
- Finding the PUK code is usually very easy, although the steps involved may vary depending on your telephone service provider. Make sure you write the code in a notepad and keep it in a safe place so you won't forget it. However, be aware that some mobile network operators limit the period of activation of PUK codes.
- The PUK code represents the second level of security for a SIM card. It is assigned by the telephone operator and cannot be changed by the user, unlike the PIN code.
Part 2 of 3: Get your PUK code
Step 1. Check the packaging of your SIM card
If you have just purchased a SIM card, carefully check the box. Sometimes the PUK code is printed directly on the packaging box.
- Look at the packaging of the SIM card, the PUK code must be printed directly on the box or on a label.
- If you can't find it, you can call the retailer where you purchased your SIM card. The staff should be able to resolve your issue within minutes.
Step 2. Contact your mobile network operator
The PUK code is a unique code assigned exclusively to your SIM card, and you can only get it from your mobile network operator. Some networks provide this code as soon as the SIM card is purchased, but not all.
- If you still can't find it, contact your carrier's customer service department or generate a new PUK code by answering some security questions.
- Customer service staff will ask you to confirm your identity. In some cases, it is sufficient for you to provide your personal data, for example your date of birth or your address. If you cannot prove that you are the holder of the SIM card in question, you will not be able to receive the corresponding PUK code. Note that you may need to provide the SIM card serial number from the packaging.
Step 3. Check your mobile operator's website
If you have created an account on your SIM card provider's website, you can get the PUK code directly online, quickly and easily. Most mobile phone operators offer this service.
- Log into your account and then find the PUK codes section on the site. This section may vary depending on your network provider. For example, to obtain the PUK code for your Orange SIM card, go to the Equipment section. Log in to your account, then select the mobile contract type and click on Equipment. Go to Mobile equipment, then click Get your PUK code.
- Some prepaid cards also use the PUK code, and you can get it if you know the phone number, name and date of birth of the card holder. If you haven't created an online account yet, you can do so now. Normally, the procedure is simple and intuitive, and you should provide some basic information and your phone number to prove your identity.
Part 3 of 3: Enter the PUK code
Step 1. Enter the PUK code into the phone
A notification asking you to enter the PUK code should appear on the screen.
- Follow the instructions to complete the process.
- The steps you can take may vary depending on the make and model of your phone, but in most cases this notification will be displayed after you lock the SIM card.
Step 2. Enter the new PIN code
If you had to provide your SIM card's PUK code because you entered the wrong PIN code after too many attempts, once you entered the PUK code correctly, you will be prompted to create a new PIN code to protect the card..
- At the end of the procedure, the phone should unlock and function normally.
- In some cases, the PUK code must be entered with the prefix ** 05 *, followed by the call or send key. Nexus One phone owners must type the following string: ** 05 * PUK code * new PIN code * new PIN code #.