What Does ‘Enter PUK Code’ Mean And Why Did The Sim Get PUK Blocked On Vivo S17t Device

If your SIM card is disabled, you probably entered the incorrect PIN code too frequently. Your SIM locks itself after three to five wrong inputs, on average. Although it might be annoying, doing these guards against unauthorized access to your phone and personal data. If your cell phone is lost or stolen, PUK blocked will prevent prospective hackers from making calls.

Your mobile phone display can say “PIN blocked” or “Enter PUK code.” PUK stands for PIN Unblocking Key in the PUK code. The PUK code is seldom given to you when you receive your membership in the US. Contact Your Vivo S17t provider’s customer support if you don’t know your PUK code.

Part 1: Why Was My Sim Card Blocked?

1. 3 times incorrect Pin entered

Sometimes when you forget your pin and keep on entering the wrong one, you can get PUK Blocked. You can utilize three to five chances, and your sim gets blocked when you enter the incorrect pin in all of these attempts.

2. Wrong PUK code entered

Sims are frequently blocked; therefore, if you have your PUK, keep it in a secure location separate from your phone. This is because it is the key to unlocking your SIM. The SIM will be permanently disabled, and you will have to buy a new SIM card if you input the wrong PUK ten times in a row.

Part 2: What To Do When I Blocked My Sim Card?

Your SIM card has been disabled to protect your security if you enter three wrong PINs and your phone shows “SIM card banned” or “Enter PUK code”.

You must input a PUK (PIN Unlock Key) code to unlock your SIM card.

Go to your phone’s settings to customize your PIN code after using a PUK code to unlock your SIM card. Pick a PIN that is simple to remember.

If your PUK code was delivered to you by email:

You got an email with multiple codes, including PUK1, PIN2, and PUK2.

If your PIN is locked, use PUK1 to unlock it.

Only a few phones employ PIN2 and PUK2 codes to restrict access to certain SIM card functionalities.

PIN2: The default code for your SIM card; If this code has been altered, use the PUK2 code to restore it.

PUK2: Your PIN2’s unlock code if it has been blocked.

Part 3: How Can I Have My PUK Code To Unlock Sim Card?

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### 1\. Get it from sim card packaging

The packing box is the best and easiest place to look for the PUK code to unlock your SIM card.

You probably have memories of the flat plastic package you got when you bought a SIM card. Your PUK and default SIM pin code should be written on the package.

Please look around your home for the package and look on the back for the key. On some older packaging, it could be sealed behind a scratchable region, whereas on other, more recent ones, you might find it unsealed.

In either case, the correct PUK has 8 numbers and should be simple to enter to unlock your SIM card.

2. Have it from carrier website

In all honesty, I doubt I’ll ever be able to locate my SIM card package again, and I imagine most people feel the same way.

But happily, a lot of cell companies let you access your account on their app or website to check your SIM card PUK. Please log in to the appropriate website or app, then go to your profile to see whether anything about “PUK” is available there.

It shouldn’t be an issue if you were utilizing or signed in to the platform before your SIM was disabled. However, if not, you might not be able to access anything since you could be asked to input an OTP to verify your identity.

Please remove the SIM card and try again if you can’t access your phone to utilize the app or website because of the SIM lock. After receiving the PUK code, you can re-insert the SIM and input it.

3. Contact your carrier

It’s time to call customer support, which should be simpler for most individuals if none of the above options work for you. For example, your mobile service provider created your SIM card. Therefore, they have all the information you would require. Before they divulge anything to you, though, they should be able to verify your identity.

Use a different phone to call your customer service number and describe the issue. And following a series of inquiries, they should offer your PUK number as identification.

However, customer service won’t release the code if you can’t back yourself up. And at that point, there’s probably nothing further you can do. Therefore, make sure you have some information, such as your name, address, date of birth, etc., before you call them.

Part 4: Easy Tool For Sim Card Unlock

If you want to unlock your PUK blocked sim card, you can use a network unlock tool like Dr.Fone. With Dr.Fone - Screen Unlock (iOS) , you can remove the PUK block on your sim card instantly. You don’t have to contact your network carrier or search for the PUK code, as you can use your PC to unlock any sim card.

Dr.Fone enables users to unblock their sim cards within minutes. It is a fast, safe, and easy-to-use tool that works as a one-stop solution for any of your smartphone-related issues. Before you try to unblock your sim card with Dr.Fone, do remember that this feature is only for iPhones and iPads. Here is how you can use Dr.Fone to open your PUK blocked sim card.

• Open Dr.Fone on your PC. After launching the application, select the “Screen Unlock” tab from the homepage to access the “SIM unlock” tool.
• Next, select the “Remove SIM Locked” option on the next page. The sim unlock feature is only available for iPhones and iOS devices.

• Use a USB cable to connect your PC and iPhone. After you ensure that your device is connected, click on the “Start” option to begin the sim unlock process.

• Now, Dr.Fone will check your iOS device and show its information for verification. Click on the “Unlock Now” option if it’s correct.

• The iPhone sim unlock will not work without a jailbreak, so you have to do it before the system start removing the sim lock. You can follow the guide about how to jailbreak your iPhone provided by Dr.Fone. The unlock process runs well with devices of iOS 12 to iOS 14.8.1.
• Now, you have to finish three easy steps to set up your iPhone. First, extract the sim card from your device. And follow the following steps. After this, click on the “Continue” option.

• After you complete these steps, Dr.Fone will directly remove the sim lock on your device. You can view the progress on your screen. The process will not take a long time to complete, so you only have to wait for a few minutes.
• After Dr.Fone ends the sim unlock process, there will be no sim restrictions on your iOS device. It means you can use sim cards from any network carrier. Now, click on the “Done” option after your task is complete.

Conclusion

People who still have their SIM pack shouldn’t have trouble figuring out “how to acquire a PUK code to unlock a SIM card”. However, for those without it, getting in touch with customer service may be the only option. As long as your SIM card has accurate information, this process should be simple.

Once you have the proper PUK to unlock your SIM card , don’t be reluctant to write it down somewhere you can easily find it later. It might not be a terrible idea to store it on your Google Drive. This way, you will not see PUK blocked, as you know how to unlock PUK blocked sim card.

The Best Android SIM Unlock Code Generators: Unlock Your Vivo S17t Phone Hassle-Free

In today’s world, smartphones have become an essential part of our lives. They offer a lot of convenience, but sometimes they can be a bit of a hassle. One of the biggest headaches that smartphone users face is carrier locking. This is when your phone is locked to a specific carrier, and you are unable to use it with any other carrier’s SIM card.

If you’ve tried Googling for solutions, you’ll realize it may take a long time to find a reliable solution. In effect, what you’re looking for is an Android SIM unlock code generator to provide you with a free unlock code. Some free solutions may have hidden costs, so you must be careful in choosing the right Android sim network to unlock pin software . Here are seven free Android unlock code generators to consider.

Part 1. What is Android SIM Unlock Code Generator?

Android SIM unlock code generator is a software or application that generates unlock codes for Android phones. These codes are used to unlock the phone’s SIM card, enabling the phone to work with any carrier’s SIM card. The software is designed to be user-friendly and easy to use, with step-by-step instructions to guide you through the process.

You may be interested in: How to Unlock Phone Free with IMEI Number

Part 2. How Does Android SIM Unlock Code Generator Work?

To use the Android SIM unlock code generator, you will need to download and install the software on your computer. Once installed, you will need to connect your Android phone to the computer using a USB cable. The software will then detect your phone and check if it is eligible for unlocking.

If your phone is eligible for unlocking, the software will generate an unlock code. You will then need to enter this code into your phone’s keypad to unlock the SIM card. Once the SIM card is unlocked, you will be able to use your phone with any carrier’s SIM card.

Part 3. Benefits of Using Android SIM Unlock Code Generator

There are several benefits of using Android SIM unlock code generator. Some of these benefits are:

• 1. Freedom to choose your carrier

When your phone is carrier locked, you are limited to using only the carrier that the phone is locked to. This can be a problem if you travel frequently or want to switch to a different carrier. By unlocking your phone’s SIM card, you will be able to use any carrier’s SIM card, giving you the freedom to choose the carrier that best suits your needs.

• 2. Cost savings

By unlocking your phone’s SIM card, you can save money on roaming charges when traveling. Instead of paying expensive roaming charges, you can simply purchase a local SIM card and use it in your unlocked phone. This can save you a lot of money in the long run.

• 3. Resale value

An unlocked phone has a higher resale value than a carrier-locked phone. This is because an unlocked phone can be used with any carrier’s SIM card, making it more attractive to buyers.

• 4. No need to buy a new phone

If you want to switch to a different carrier, you may be tempted to buy a new phone that is compatible with that carrier. However, by unlocking your phone’s SIM card, you can use your existing phone with any carrier’s SIM card, saving you the cost of buying a new phone.

Part 4. 4 Android SIM Unlock Code Generators Reviews

There are several Android SIM unlock code generator software available on the internet. Here are some of the most popular ones:

Tool 1: NokiaFree - Powerful SIM Unlock Code Calculator

Even though the name suggests this tool is meant for Nokia phones, the truth is that NokiaFree is a powerful utility that can unlock other brands of phones as well. The software can be downloaded for free, and it is always better to download the latest version from their website. The process of finding your sim network unlock pin is so simple, and you’ll wonder why you didn’t try this utility earlier.

How It Works

All that is needed is the IMEI number from Your Vivo S17t to generate an unlock code. Just type in *#06# into your mobile. The IMEI code is then displayed. Copy the 15-digit IMEI code and enter it into the software. You’ll get a list of unlocking codes. Try a maximum of four codes to unlock your mobile.

Click here


Pros

• Software is very easy to install.
• User-friendly interface with easy-to-find menus and buttons.
• Supports many other phone brands, including Nokia, Sony, Samsung, and Siemens.
• Easy-to-follow simple instructions.
• Provide easily available basic information to get your unlocking code.

Cons

• Requires an internet connection to function (web-based tool).
• The name suggests the tool is useful only for Nokia mobiles.

Review

The NokiaFree Android SIM unlock code generator is getting better all the time. You now have access to a tool that is easy to use, and quickly unlocks restrictions on a wide range of mobiles, and anywhere in the world. An added bonus is it comes to you totally free of cost. The download takes very little time, and this Android unlock code generator does not interfere with other functions.

Tool 2: WorldUnlock Codes Calculator

As the name suggests, the WorldUnlock Codes Calculator can unlock your phone in any location with just a few clicks. It’s easy to find a reliable code generator, but you’d have to pay for receiving a code in variable amounts. In other words, there are no fixed charges to locate your phone unlock code from a dealer. However, this software is totally free and requires only basic details to provide the unlock code.

How It Works

Just locate the IMEI number by typing in *#06# into your phone. Enter the code into the software along with basic details like country of purchase and service provider. That’s it.

Pros

• Free and safe software download.
• The software is updated regularly. You can download the updated version.
• Very popular with worldwide users.
• Works with the latest Windows 10 version.
• Unlocks Maxell, Nokia, Motorola, Siemens, Samsung, LG, Vitel, and AEG mobiles.

Cons

Works only with Windows-based operating systems.

Review

The WorldUnlock Codes Calculator can be easily downloaded to a Windows computer working on the latest operating system. The system generates several codes, so you’re sure to find one that unlocks your phone. Many users are likely to use their services, considering it is a Windows-based system.

Tool 3: UnlockMe For Reliable Android SIM Unlock Solutions

If you own a Nokia phone, UnlockMe will provide all the necessary information to unlock your phone. You can browse through the latest information on various topics related to Nokia and other phones - likely to prove useful in the long run. It is a known fact some phones are easier to unlock than others, and a dedicated site focusing on providing absolute solutions to Nokia releases is pretty useful. Besides checking out the latest information, you can get free unlock codes with this Android unlock code generator.

How It Works

Check If your Nokia phone is listed on the site, then follow simple instructions to get your SIM to unlock code.

Pros

• An exhaustive list of supported Nokia DCT4 and Nokia DCT3 models.
• An interactive system where users have to enter minimum information about the model, 15-digit IMEI number, and network provider.
• Provides detailed instructions on video sites to help users complete the process.
• Dedicated sections compiled for Lumia 800 and 710, as well as iPhones.
• Constantly expanding to serve worldwide users.

Cons

At the time of this review, the site was mainly providing Android SIM unlock code generator to a specific list of countries.

Review

UnlockMe works really well with users in the United Kingdom and its listed countries. It is expanding quite rapidly, so keeping in touch with this site makes sense. It does provide alternate solutions to finding unlocking codes at present, making it a worthwhile site to check out. If you are unable to find the unlock code this time, you’re likely to find a solution the next time you visit this site.

Tool 4: UnlockItFree - Powerful Worldwide SIM Unlock Code Provider

With many users asking for unlock codes, UnlockItFree has developed from a free domain to a powerful worldwide service provider with better features. Nearly 90,000 phones have been unlocked with codes provided by this website. This simple Android unlock code generator packs a punch with accurate and advanced technologies embedded into its unlocking process.

How It Works

A simple process is used to uncover free unlocking for even the Nokia DCT4 and DCT3 phones via remote code. Other phones listed on the website also require users to follow easy steps to unlock SIM codes.

Pros

• Totally anonymous unlocking process.
• Gain unlocking codes just by sharing this system with others.
• Completely legal with uniform codes across the globe.
• Customer service provided on this free website.

Cons

After the first and last codes, users have two more attempts to unlock their phones.

Review

Unlockitfree has grown into a powerful site over a period of time. By offering stable services, this reliable unlocking tool works well on most phones irrespective of location. Considering the number of phones that have found solutions on this website, it is likely this unlocking tool will continue to grow with informative feedback from its customer service cell. An Android SIM unlock code generator that works on most phones and across the globe is just what you need to find instant and free unlock codes.

How To Change Your SIM PIN Code on Your Vivo S17t Phone

When you get a new SIM card, it usually comes with a default PIN (Personal Identity Number) code printed on the packaging, documentation, or back of the SIM card. This 4-digit code protects your phone number from unauthorized calls, texts, and data use. It’s essential to change the default PIN to one that’s both memorable for you and difficult for others to guess.

So, how to change the PIN on an Android phone’s SIM card? This article will provide a step-by-step guide to help you secure your data. But first, let’s explore why changing the default one is important.

Part 1: Why Does Changing Your SIM PIN Code Matter on a New Phone?

Your SIM PIN code acts as a password for your SIM card, which stores your phone number, contacts, and other essential data. Unlike the PIN you use to unlock your phone, the SIM PIN code is a separate layer of security. If someone tries to use your SIM card in another phone without the correct PIN, they won’t be able to access your network or data.

Here are more reasons why changing the PIN code of a SIM card is a smart move:

• Default PINs are easy to guess

Most carriers use generic PINs like “1234” or “0000”. Change it to something unique and harder to crack.

• Protects data in case of loss or theft

If you lose your phone or it gets stolen, a strong PIN code hinders the thief’s ability to make calls, send messages, or access your data stored on the SIM. It buys you time to report the loss and block your SIM card before they can do any damage.

• Prevents accidental PIN lockouts

Using a memorable PIN minimizes the risk of accidentally locking yourself out of your SIM card.

• Peace of mind

It is crucial if you store sensitive info on your SIM or use your phone for work. Knowing about this extra safeguard is reassuring, ensuring your data stays protected.

Remember:

Choose a PIN code for your SIM that’s easy for you to remember but challenging for others to guess. Avoid using birthdays, anniversaries, or other easily identifiable information. By taking a few minutes to change the PIN code of the SIM card, you’ll gain a significant security advantage for your new phone and data.

Part 2: How To Change Pin on Android Phone SIM Cards?

Keeping your SIM card secure is crucial for protecting your data and privacy. Thankfully, Android allows you to easily change your SIM card PIN to a more personal and memorable code. But before you begin:

• Contact your network carrier to get your PUK code if you already have it. You’ll need this if you enter the wrong PIN three times and lock your SIM card.
• Remember the temporary default PIN: Most SIM cards have a default PIN, often 1234 or 0123. If you haven’t changed it, this is the PIN you’ll use initially.

Note:

Entering the wrong PIN three times will lock your SIM card. You’ll need your network carrier’s PUK code to unlock it. Use it cautiously, as exceeding the maximum number of attempts will permanently block your SIM card. So, it’s best to memorize your PIN or store it securely to avoid relying on the PUK altogether.

Steps To Change Your SIM PIN

Here’s how to find and manage the SIM PIN code on Android:

• Step 1: Navigate to your phone’s Settings app. Next, look for the Security and privacy or Lock screen and security (or other similar option) depending on your device’s model.
• Step 2: Scroll down and tap on More security settings or Other security settings.
• Step 3: Tap SIM card security or Set up SIM card lock (or something similar).

• Step 4: If you have multiple SIMs, select the one you want to change the PIN code.
• Step 5: Tap Change SIM PIN.

• Step 6: Input your current SIM card PIN code and tap OK.

• Step 7: Enter your desired new PIN code and tap OK.
• Step 8: Re-enter your new SIM card PIN code and tap OK to confirm.

Success! You’ve successfully changed the PIN code of your SIM card. Remember your new PIN for future use.

Part 3: What To Do if You Forgot or Lost an iOS Device’s SIM PIN Code?

If you’re an Android user, changing your SIM PIN is easy. But for iPhone users, forgetting it can lock you out. So, what should you do if you lose the SIM PIN code on iOS?

First, avoid guessing your SIM PIN or PUK code. Every wrong guess increases the risk of permanently locking your SIM card, requiring a replacement. If you forget your PIN, contact your network carrier for help. They can usually unlock your SIM with the default PIN or PUK code. If that fails, you can request a new SIM card.

However, there might also be situations where you’re locked out due to a carrier-restricted SIM card. If a quick resolution is important or you want to keep your current SIM card, consider using Wondershare Dr.Fone .

Here’s a list of Dr. Fone’s key features:

• Solve SIM lock issues within minutes
• Support for various SIM carriers, whether your phone is on an installment plan
• User-friendly interface and straightforward process
• Can bypass various screen lock types like PIN, password, fingerprint, and pattern locks on both Android and iOS.

How To Unlock Your iPhone SIM Card To Work With Any Carrier?

Note that this process may need you to jailbreak your iPhone. Make sure you understand the risks involved before proceeding. If you are ready to remove your iOS device’s SIM lock, here’s a simple step-by-step guide to help you through the process.

• Step 1: Download and install Dr.Fone on your computer. Ensure you choose the correct version for your operating system, whether Windows or Mac.

• Step 2: Connect your iOS device to the computer using a USB cable. Launch Dr.Fone, then go to Screen Unlock > IOS from the available options in the Toolbox window.

• Step 3: Select Remove SIM Locked to unlock the SIM PIN code, then click Start on the next screen.

• Step 4: Dr.Fone automatically recognizes your iOS device model, version, and other details. Click Unlock Now to confirm the details and proceed with the unlocking.

• Step 5: Once jailbroken, follow the specific instructions provided by Dr.Fone to complete the SIM lock removal process.

• Step 6: The software will initiate the SIM unlocking process and wait for it to complete. Once done, your iOS device’s SIM will be successfully unlocked.

Conclusion

Remember, securing your phone’s data starts with a strong, unique SIM PIN code – change it regularly! Now that you know how to change your PIN on an Android phone SIM card, you can change your PIN on Android and keep your data safe. But security goes beyond the PIN code. Enable additional protections like screen locks and two-factor authentication.

Don’t worry about forgetting your screen lock on Android. For advanced troubleshooting, Dr.Fone stands ready. And if you encounter SIM-related issues on an iOS device, such as “SIM not supported” or being “locked to a carrier,” as mentioned above, it can help you. This powerful tool can diagnose and fix various mobile problems on both platforms.

Tips: Are you searching for a powerful Screen Unlock tool? No worries as Dr.Fone is here to help you. Download it and start a seamless unlock experience!