How To Change Your SIM PIN Code on Your Vivo X100 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!

Top IMEI Unlokers for Your Vivo X100 Phone

Anytime your device is locked for one reason or another, IMEI unlocking is often the easiest way to unlock the Vivo X100 device. Using your IMEI number there are several apps and tools that can unlock a completely a mobile device. Most of these apps are freely available on the different app stores. Some are free. Others will offer the service at a substantial fee. Because there are so many of them it can often be difficult to sieve through the mass of apps and find the right one for you. In this article we are going to provide you with 5 of the best IMEI unlocking tools for Android and 5 for iPhone users. This way it will be easy for you to choose one for you.

Part 1: Top 5 IMEI Unlokers for Android Phones

1. IMEI Unlock

Download Link: https://play.google.com/store/apps/details?id=com.doctorsimcommobile

This app works by using your IMEI number to remotely unlock a locked Android device. You can use it by using a SIM card on a different network than the one that is locked and just entering the IMEI code when prompted by the app. The app will proceed to unlock the Vivo X100 device and once this is done, you won’t be required to enter the code again.

Although it is not free, it is very easy to use and very effective. It also comes with a lot of great features such as social media integration and excellent customer service.

2. IMEI-Unlocker

Download Link: https://www.imei-unlocker.com/

This is an app that has been developed by legendary unlocking website imei-unlocker.com service. It works very easily. All you need to do is launch the app and the tap the unlock button from the dashboard, choose the Vivo X100 device and then enter the IMEI number of the locked device. It is also compatible with all Android devices including the newer models such as the Samsung Galaxy S5.

3. Unlock your Phone Fast & Secure

Download Link: https://play.google.com/store/apps/details?id=com.unlockscope.app&hl=en

The major selling point of this app is that it supports a wide range of Android device. Using it however is not as easy as the ones we’ve seen above. You have to provide a lot of information about the Vivo X100 device before you can be provided with the unlocking code. Also, the app charges the user per unlocking code provided. The code is sent to the user’s email address which also further complicates the process.

4. Unlock Your Vivo X100 Instant

Download Link: https://instant-unlock.com/

This is another app that makes it very easy to use your IMEI number to unlock an android device. It supports a wide range of devices including Alcatel, LG, HTC, Motorola and many others. All you have to do is install the app and then provide your device’s information. The app will send you an email with the unlock code and instructions on how to use it.

5. Device Unlock

Download Link: https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device

This one is fairly new although it does work well to unlock your mobile device. It is very easy to use and you can request an unlock code directly from the Vivo X100 device. The only drawback is that it only supports Samsung Avant devices.

Dr.Fone - Screen Unlock (iOS)

iPhone SIM Unlock to Work on Any Carrier Worldwide

• Support newly released models from iPhone 5S to iPhone X.
• Move to any network operator within minutes aimlessly without data loss.
• You can unlock an iPhone without an R-SIM.
• Compatible with most carriers, T-Mobile, Sprint, Verizon, etc.

3,981,454 people have downloaded it

Part 2: Top 4 IMEI Unlokers for iPhone

1. My IMEI Unlock

Link: https://myimeiunlock.com/

This is one of the most trusted unlocking service in the business. The services promises it can unlock any iPhone regardless of iOS firmware, boot-loader or baseband. It can also be used to unlock all iOS versions including iOS 9. Most of all they promise not to jailbreak your device while unlocking. It is also very easy to use. All you have to do is provide the Vivo X100 device’s details as well as the IMEI number and the do the rest.

2. iPhone IMEI

Link: https://iphoneimei.net/

Apart from offering you the chance to check your IMEI number, this service also unlocks iPhones. It very easy to use. All you have to do is select your iPhone model, the network carrier you use and then enter your IMEI number to unlock the Vivo X100 device. The site also allows you to easily pay via PayPal.

3. Let’s Unlock iPhone

Link: https://letsunlockiphone.services/

Yet another reliable service that easily unlocks your iPhone using the Vivo X100 device’s information and IMEI number. This services promises that the iPhone will be unlocked in just 2 days and the action is permanent- you won’t have to repeat the procedure at a future date. The service is also quite affordable as compared to the others.

4. Cell Unlocker

Link: http://www.cellunlocker.net/apple-iphone-unlock-solution.php

For this service you first begin by selecting your iPhone model and then entering your IMEI number. It is a great service that is also very easy to use. The site however only unlocks iPhones with specific network carriers and you should check that they support your carrier before placing an order.

Conclusion

Now that you have at least 10 solutions to choose from, we hope you are able to make use of your IMEI number to unlock your device. You have to part with some cash to use them but if it means getting your device working normally again, we think its worth the investment. Let us now how it works out for you.

Android Unlock Code: Sim Unlock Your Vivo X100 Phone and Remove Locked Screen

When you buy a phone, your matter of concern is whether to buy a locked phone or an unlocked Phone. Locked phones may look much safer to you, but they are very inconvenient when it comes to normal use. These phones are bound to one carrier only, which is their biggest disadvantage. At the same time, unlocked phones save you from this hassle.

If you’ve bought a locked phone and facing problems, you need not worry as there are multiple ways to unlock your phone. For that, this article has provided the solution to your issue in the most intelligible way.

Part 1: Difference between Unlocking, Rooting, and Jailbreaking

This part of the article shall differ from three very similar terms, Unlocking, Rooting, and Jailbreaking, to clear your confusion.

Unlocking

Unlocking a phone means making it compatible with other SIM carriers. An unlocked phone is not pinned to a single SIM carrier; rather, it lets you switch carriers. SIM Card lets your phone connect to a specific network, but it depends on your phone’s hardware compatibility. If it’s not compatible with a specific network, then nothing can change that.

To unlock your phone, you have to enter a specific code to remove the restrictions of the network. However, there are ways to unlock your phone without granting permission from the network.

Rooting (for Android)

Rooting a phone means gaining “root access” on another phone. This process works for Android only. However, it can also be used on some specific Linux-based devices. Root access allows you to do almost everything on the phone you’ve gained access to, like installing or uninstalling applications or changing the settings.

Root access is not all fun, and games as this process will lead you to the security architect of your operating system, which will be hard to deal with even if you’re a professional. So, it’s important to be careful with this process, else you will have to bear the consequences.

Jailbreaking (for iOS)

Click here


Jailbreaking a device means removing all the restrictions on that device that its manufacturer’s applied. This process works specifically for Apple devices. It lets you bypass the limitations and restrictions, so you can modify the software your way and make changes to the default program. It is also considered free booting, and Apple or any other company does not approve of it.

In summary, unlocking is primarily about freeing a device from carrier restrictions, rooting is specific to Android devices and involves gaining administrative access, while jailbreaking is specific to iOS devices and involves bypassing Apple’s restrictions for more customization. All these processes come with potential risks and may void warranties, so users should carefully consider the implications before proceeding.

It is advisable to always go for the safest method, unlocking your phone. Rooting and Jailbreaking are risky security exploitations that can cause serious problems.

Part 2: Is it Legally Allowed to Unlock Your Vivo X100?

Every country has its own rules and regulations. Similarly, laws regarding unlocking your phones are different in different countries. However, after sessions of deliberations and consultations, the US has declared it legal to unlock your phone.

In order to legally unlock your phone, you must make sure your phone service contracts, payments, and dues are cleared. You must be the sole owner of your phone. Once your phone is eligible and falls under the requirements, you will be given an “Unlock Code” to proceed further.

Part 3: Free Ways to Perform Android SIM Efficiently

This part of the article will briefly explain some efficient and free-of-cost ways to unlock your SIM.

Method 1. Unlock your SIM through GalaxSim Unlock

GalaxSim is an effective application for unlocking your SIM. Its user-friendly interface is designed in such a way that every other person can use it even if you have no knowledge of tech. It automatically backs up data on Google Drive, and if there are errors, it detects them right away.

Here is a small step-by-step guide to using GalaxSim on Android, as it is only compatible with Galaxy series phones.

• Step 1. Launch GalaxSim

The first and foremost step is to install GalaxSim from Google Play Store on your Android device.

• Step 2. Phone Status

Once GalaxSim is downloaded, open the application and allow it to run on your device. Now, it will show you whether your phone and its systems are locked or unlocked.

• Step 3. Unlock your Phone

Under your phone’s status, click on “Unlock” to continue. After the process is completed, your phone will be unlocked successfully.

Method 2. Unlock SIM through Free Code

FreeUnlocks is the most trusted phone unlocking website on the Internet. It is completely safe as the code is given to you safely and sounds on you on your email only. It is compatible with all phones as it is available online and free of all malicious software.

The following are the steps to use FreeUnlocks to get your free code.

• Step 1. Confirm your Device

Choose your device name and device model first. Then click on “Unlock Now” to start the process.

• Step 2. TrialPay for Free Code

Now you’ll be given two options on the screen, “PayPal” or “TrialPay”. If you want to do it free of cost, select “TrialPay” to proceed to unlock your device. However, it depends on your personal preference; you can select “PayPal” if you want to enjoy more features.

• Step 3. Remote Email

You’ll receive an email immediately, and all you have to do is, enter the unlock code, and there you have it, your SIM unlocked.

Bonus Tips: How to Unlock Android Screen Precisely with Dr.Fone Screen Unlock?

Wondershare Dr.Fone - Screen Unlock (Android) has yet, another time, taken the lead in this matter too. This convenient multifunctional software is a go-to software for everyone who has knowledge of tech as it provides solutions for your software and hardware problems under one roof. While it may seem like big trouble on your end, it’s just a matter of a few minutes for Dr.Fone to fix your issue.

safe & secure

Wondershare Dr.Fone is the best solution to unlock your Android device as it

• Removes all kinds of locks, be it fingerprint, password, unlock code or pattern, and PIN.
• Bypass Android FRP lock without a PIN or Google account.
• Compatible with almost all Android devices.
• A completely safe tool. No risk of hacking or virus attack.
• Very convenient and easy-to-use software for amateurs and professionals as well.

Moreover, Samsung and LG devices can be unlocked using Dr.Fone without losing any data, whereas this is not the case with other phones. In order to unlock the Android screen precisely with Dr.Fone Screen Unlock, you have to follow the given steps:

• Step 1: Install Wondershare Dr.Fone

Install Wondershare Dr.Fone on your PC and connect your Android device to your PC via cable.

• Step 2: Unlock your Android Phone

Select “Screen Unlock” on the home interface among the other given options. Once your PC detects your phone, another interface will be displayed on the screen. Now, select “Unlock Android Screen”.

• Step 3: Confirm your Device

Now, select your Device to proceed on. Dr.Fone will guide your Android device into the specific mode automatically.

• Step 4: Remove Password

Once your device model matches and your device enters the specific mode, the software will automatically start unlocking. This way, your password will be removed successfully, and you can easily unlock and access your Android device.

Part 5: Tip to Avoid the SIM Lock Issue

In order to avoid the SIM Lock issue, it is advisable to use unlocked phones. This will save you from long-term hassle as you will have the freedom to switch carriers and SIM cards whenever you like. On the other hand, if we talk about locked phones, they’re expensive and a headache to deal with because of the requirements and problems they come with.

If you’re concerned about a dual-SIM phone, then you can have one SIM pinned to a good quality carrier. The other SIM can be temporary and cheap. This is an amazing option for you if you’re traveling, as you’ll have the flexibility to change carriers for the temporary SIM no matter wherever you are.

Conclusion

As a crux, an unlocked phone is a better choice than a locked phone. We would personally advise you to go for unlocked phones as this will save your time and money. You will have much more freedom and flexibility for changing between SIM and SIM carriers. Whereas on the locked phones, you will be bound to one SIM. So, the next time you decide to buy a phone, give this article a read again.