Network Locked SIM Card Inserted On Your Oppo F23 5G Phone? Unlock It Now

Carriers provide cellular connections so you can access the Internet, send text messages, and make phone calls without Wi-Fi. You cannot escape the carriers once you begin using a cell phone.

Customers can purchase a new handset via carriers or the mobile phone market. You may need an unlocked phone if you wish to use a different carrier’s service on your smartphone. However, if you want a gadget linked to a specific SIM card, you may buy one from the carriers for a reduced price.

Part 1: What Does It Mean If Your Oppo F23 5G Asks for SIM Network PIN?

When your phone prompts you to enter a SIM Network Unlock PIN, it means that your device is currently locked to a specific mobile network carrier, and it can only be used with SIM cards from that carrier. This locking mechanism is usually put in place by the carrier or the phone manufacturer to ensure that you continue to use their services, typically for the duration of a contract. As a result, your phone cannot be freely used with SIM cards from other carriers until it’s unlocked using the correct PIN or code.

Part 2: Why Does Your Oppo F23 5G Say Invalid SIM Card – Network Locked SIM Card Inserted?

System Errors

Since SIM locking is a smartphone restriction implemented to stop it from being used on other networks, Android system errors can cause network-locked SIM cards. Resetting these errors can help unlock your network locked SIM card inserted device. Service providers decided to provide a formal SIM unlocking option as a result.

Because of this, any locked SIM may be readily unlocked, and once a device opens, it can work like a conventional mobile phone and with any SIM card of the user’s choosing.

Carrier Lock

The consumer must stick with the same service provider for a specific time after purchasing the bundled device and data pack. This is called a carrier lock on the Oppo F23 5G device and is one of the most common errors in network locked SIM card inserted devices. During that time, the Oppo F23 5G device will be network- or SIM-locked, prohibiting the user from changing service providers.

The user cannot change the SIM. The service provider will offer the SIM Unlock code needed to unlock the handset when the contract expires. The gadget can be used with any other SIM card and exported to another country without problems when the network lock has been removed.

Region Lock

Apple and AT&T initially worked together to implement the SIM lock and the SIM locked devices. The original purpose was to force the user to continue using the same service provider in a specific area or time.

However, some telecom service providers sell the handsets with select data plans as bundled plans in collaboration with the Oppo F23 5G device manufacturers. As a result, the handset will cost less than it would otherwise. Sometimes, these offers are particular to a specific region, called a carrier lock.

Firmware Problems

Sometimes, the Oppo F23 5G device manufacturers release many versions of the same firmware for different geographical locations.

As a result, it may be possible that the user may face contradictions in the agreement of device firmware and the network-locked SIM card that was supposed to be used on the Oppo F23 5G device. Due to firmware problems, the users may also face a network-locked SIM card-inserted device.

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Part 3: How to Unlock Network Locked SIM Card Inserted?

Unlocking a network-locked SIM card may seem like a complex task. However, it can be a straightforward process if you follow the right steps. In this section, we will guide you through the process of unlocking your network-locked SIM card. We will discuss 3 different ways you can unlock a network-locked SIM card inserted:

Method 1. Contact Network Carrier to Unlock Network Locked SIM

Contacting your network carrier is often the most recommended choice. It is a straightforward and reliable method to unlock your network-locked SIM card. Unlocking your network-locked SIM card through your carrier is a reliable and legal method. Before contacting your carrier, get information like your device’s IMEI number and account details. There are several ways to get in touch with your network carrier’s customer support.

You can call the customer support hotline, visit the website, or go to a physical store. The process usually involves receiving an unlock network code, which you need to use. Once you’ve entered the unlock code, your phone should display that it’s now unlocked. Test it with the new SIM card to ensure that it can make calls, send texts, and access mobile data without any issues.

Method 2. Use Online Unlock Service to Unlock Network Locked SIM

There are many online services available for unlocking a network-locked SIM card. In case you don’t want to go through your network carrier, these can be a good alternative. These services employ the IMEI number of the Oppo F23 5G device to unlock smartphones.

One such service is Canada Unlocking , which offers to unlock your network-locked SIM card via email. Follow these steps to unlock a network-locked SIM card via online services:

Step 1: Use a web browser to access an online SIM card unlocking service like Canada Unlocking. On the main page, choose your network carrier or device brand.

Step 2: Follow it by providing the IMEI number of your device. Afterward, make the required payment, and you will receive the unlock code via email.

Method 3. Repair Your Oppo F23 5G Firmware If Your Unlocked Phone Suddenly Network Locked

Coming across “Network Locked SIM Card Inserted“ doesn’t necessarily mean that your SIM card is network locked. It can also happen due to a system bug or glitch. This can be the case if you suddenly face this issue after recently updating your device. In such scenarios, you need a reliable Android system repair tool like Wondershare Dr.Fone.

With this tool, you can repair Android OS system issues such as black screen of death, apps crashing, and many more. It supports over 1000 Android models across all major Android brands for system repair. Below are the steps you need to fix the network-locked SIM card issue:

Step 1: Download and Connect Wondershare Dr.Fone

First, download Wondershare Dr.Fone from its official website. Install the software on your system and launch it to proceed. Establish a connection between your Android and the system using a USB cable. Furthermore, access the “Toolbox” section and select “System Repair” to move forward.

Step 2: Add Your Oppo F23 5G Device Details

After selecting “System Repair,” you will proceed to a new window. Here, choose the “Android” button and proceed to the next screen to select “Start.” Now add your device details like “Brand”, “Name,” “Model,” “Country,” and “Carrier.” Then, checkmark the “I agree with the warning and I am ready to proceed” box from the bottom right corner and click “Next.”

Step 3: Solve the Network Locked SIM Card Inserted Issue

Now, you need to put your Android device into Download Mode. You can follow the instructions given on the screen for it. As soon as the Oppo F23 5G device is in Download Mode, Wondershare Dr.Fone will start downloading the firmware. Once it is downloaded and verified, click “Fix Now.”

Confirm your choice by inserting “000000” in the pop-up dialogue box and tap “Confirm.” It will start the Android repair process to fix all system issues.

Bonus Tip. How to Unlock Network Locked Sim Card Inserted on iPhone?

If you want a fast and easy method to unlock your network-locked iPhone, you can use a third-party tool such as Dr.Fone – Screen Unlock (iOS). It is the best sim-unlock tool for iPhone users. It enables users to safely unlock their devices within five minutes. With Dr.Fone, you don’t have to wait for the sim-unlock code or reset your device firmware that can remove all your data.

You can download Dr.Fone on your PC and use it to unlock your iPhone without data loss. You can also use Dr.Fone to unlock your iPhone’s screen lock and Apple ID. Although Dr.Fone is a one-stop solution for all of your phone-related problems, its sim-unlock only works for Apple devices. Here is how you unlock your carrier-locked iPhone with Dr.Fone – Screen Unlock (IOS).

• Download and install Dr.Fone on your PC. Launch the application and select the “Screen Unlock” tab from the list on the homepage.

• Now, click on the “Remove SIM Locked” tab on the next page. You can only use it to unlock iPhones.

• Connect your iPhone and PC with a USB cable. Once your device is ready, click on the “Start” option to proceed with the sim unlock process.

• Next, the system will detect the Oppo F23 5G device connection, then its information will show up on your PC screen. If all of it is OK, click on the “Unlock Now” option.

• You cannot unlock your iPhone without a jailbreak, so you must do it before the system unlocks it. You can learn about the jailbreak process via the guide, or watching the video provided by Dr.Fone to jailbreak your iPhone is also feasible. The process is compatible with devices running iOS 12 to iOS 14.8.1.

• Now, you have to complete three tasks on your iPhone. First, put the SIM card out of your device. Open “Settings” and tap on the “WIFI” option. Tap on the blue exclamation mark next to all the connected networks and select “Forget This Network.” Now, switch off the “WIFI” and insert the locked SIM card in your iPhone. Click on the “Continue” option on your computer.

• After that, Dr.Fone will automatically start the SIM unlocking process. You can see its progress on your PC. The process only takes a few minutes to complete, so you don’t have to wait for a long time.

• After the process ends, all the sim restrictions on your iOS device are now removed and you can use sim cards from any network carrier. Next, click on the “Done” option to end the sim unlocking process.

Part 4: Why is SIM Unlocking Important?

As previously stated, a SIM lock enables a service provider to stop a customer from using the smartphone with the SIM cards of another service provider. This guarantees that the Oppo F23 5G device is only being used with the original SIM card for each provider. This locking also has a lot of drawbacks because it is incompatible with any other SIM card.

1. The phone cannot be used with other SIM cards if the SIM lock is enabled. Customers must therefore adhere to the current plan as is.
2. Since nobody wants to purchase a locked phone, it is hard for someone to sell or gift the mobile.
3. Traveling abroad with a SIM-locked phone could provide some challenges because you won’t be able to use a local SIM card on the phone while you’re there.

All the problems can be fixed, and the SIM works in any nation with the removed SIM lock.

Conclusion

Any of the methods above can work to get around the prohibition against using other SIM cards with your Android handset. The best thing about using Dr.Fone-Screen Unlock is that you don’t need unlocking codes to complete the tasks.

What Is a SIM Network Unlock PIN? Get Your Oppo F23 5G Phone Network-Ready

A network-locked device tethers you to one carrier, limiting your choices. You might miss out on better deals, struggle with roaming charges abroad, or feel inconvenienced by limited coverage. And you can’t avoid these things without the right SIM network unlock PIN.

That’s why we’ve created this comprehensive guide to help you unlock your phone’s potential. This article will explain what a SIM network unlock PIN is, the process involved, and answer any questions you might have. Keep scrolling to learn more.

Part 1: Why Is Your Oppo F23 5G Asking for a SIM Network Unlock PIN?

You just bought a new phone, excited to use it with a new SIM card. But your phone pops up with a request for a PIN code to unlock it. What’s that all about, and what do you enter? There are two main reasons why your phone might be asking for a SIM PIN or unlock code:

SIM Network Lock

The SIM Network Lock is a restriction placed by your phone’s original network provider, locking it to their network. It means you can only use the Oppo F23 5G device with SIM cards from that specific carrier. Carriers use this to ensure that the phones they sell work only with their service. When you buy a subsidized phone, they want to ensure you stick around for the contract duration.

If you insert a SIM card from a different carrier, your phone will ask for a SIM Network Unlock PIN or Network Unlock Code (NUC). You’ll learn more about it in the upcoming sections of this article.

SIM Card Lock

SIM Card Lock is a security feature that protects your SIM card from unauthorized use on other devices. It requires you to enter a PIN (Personal Identification Number) to unlock the SIM card before you can use it.

The default PIN is usually printed on the back of the SIM card or its packaging. If you haven’t changed your PIN, use the 4-8 digit code provided by the carrier when you get your SIM card.

If you’ve forgotten the SIM PIN code, you can use the PUK (PIN Unlock Key) code to unlock the SIM and set a new PIN. The PUK code is also printed on the SIM card packaging, but be careful, as entering the wrong PUK code too many times can permanently lock the SIM card.

Not knowing the SIM unlock PIN code can be frustrating, especially if you want to switch mobile carriers. So, in the next part, we’ll explore whether it’s possible to unlock a SIM network-locked iPhone device.

Part 2: Can a SIM Network Locked iPhone Be Unlocked?

Yes, a SIM network-locked iPhone can be unlocked by your network provider. Insert a new SIM card, and you’ll be prompted to enter the SIM Network Unlock PIN. After inputting the correct unlock code, your iPhone is ready to use with any carrier.

If you are thinking about unlocking your iPhone, it’s crucial to grasp what a SIM Network Unlock PIN is and how it functions.

Part 3: What Is a SIM Network Unlock PIN?

A SIM network unlock PIN is a code allowing you to remove your phone’s network lock. It means you can use your phone with a SIM card from any compatible network provider, not just the one you originally bought it from. It is also known as Network Unlock PIN (NUP), Network Control Key (NCK), or Network Unlock Code (NUC).

Unlocking your device can be useful if you:

• Bought a phone locked to a specific carrier and want to switch to a different one.
• Are planning a trip abroad and want to use a local SIM card instead.

• Still haven’t finished your contract with your original carrier and want to keep the phone but use a different service.
• Bought a phone second-hand locked to the previous owner’s network.
• Want to increase your phone’s resale value; unlocked phones generally have a higher resale value than locked phones, as various buyers can use them.
• Want more carrier flexibility; you are not tied to one carrier and can choose the provider that best suits your needs in terms of price, coverage, data plans, and other features.

Things To Consider

Before you proceed, here are some key points to remember:

• Eligibility: Not all phones are eligible for network unlocking. Check with your carrier or manufacturer for details.
• Costs: While some carriers can give SIM network unlock PIN for free, others may charge a fee. Third-party unlocking services also typically charge a fee.
• Waiting time: It can take days or even weeks to receive your SIM unlock PINcode from your carrier and process it. For instance, Vodafone usually unlocks the Oppo F23 5G device within 72 hours to 10 days if they have to reach the manufacturer.
• Risks: Using an unauthorized unlocking method could damage your phone or void its warranty.
• Backup: Before unlocking your phone, back up your data, as the process may erase it.

Now that you understand SIM Network Unlock PIN, let’s get down to business! In the final part, we’ll guide you through the two ways of unlocking your iPhone for a new carrier.

Part 4: How To Unlock Your iPhone for a New Carrier?

Ready to unlock your iPhone and explore your carrier options? Read on, and this part will break down each method step-by-step so you can choose the one that best suits your situation.

Method 1: Unlock SIM Card Without SIM Network Unlock Pin Fast

If you’re wondering about unlocking a second-hand iPhone, what to do if the carrier’s SIM network unlock PIN doesn’t work, or if you can’t wait for the network provider’s response, don’t worry. You have one of the best mobile solution apps to remove SIM lock available here.

Wondershare Dr.Fone , a powerful mobile solution app, can simplify this process. Regardless of mobile carrier or purchase method, it can unlock your iPhone in a few minutes.

Important Considerations:

• Fone will not be able to remove the SIM lock if your iPhone’s mobile carrier blocks or blacklists the IMEI.
• Jailbreaking is necessary for SIM lock removal and can void your iPhone’s warranty.

So, if you plan to switch carriers without a SIM network unlocks PIN code, this method is a good fit for you. Follow these steps below to fix common issues like “SIM Not Supported” and “SIM Locked” with ease.

• Step 1: Download and install Dr.Fone on your computer. Connect your iPhone to your computer using a USB cable. Next, launch the app to set up your account, then from the Toolbox homepage, select Screen Unlock.

• Step 2: After you select iOS as your device type, choose the Remove SIM Locked option.

• Step 3: Click Start to initiate the process. On the next screen, click Unlock Now to confirm your device information.

• Step 4: Jailbreak your iPhone using the guide or video in the pop-up window.

• Step 5: Follow the in-app guide to complete the SIM lock removal process.

• Step 6: Wait for the process to finish. Dr.Fone will notify you when the SIM lock has been removed.

Method 2: Get a SIM Network Unlock Pin for Free From the Network Carrier

Requesting a SIM network unlock PIN for free is usually straightforward. iPhones purchased from carriers are often locked to their network for a certain period (AT&T and Verizon require 60 days).

• Step 1: Visit your carrier’s website or contact them to confirm if your phone is eligible for unlocking.
• Step 2: If eligible, submit a request through your carrier’s website or app. You may need to provide information like your IMEI number, account details, and proof of purchase.

• Step 3: Depending on your carrier, you might receive the unlock code after a few days or weeks. It might be delivered via email, text message, or online account.
• Step 4: Follow the instructions provided by your carrier for your phone model. It usually involves inserting a SIM card from a different carrier and entering the SIM network unlock PIN code when prompted.

Important notes:

• Some carriers may charge a fee for unlocking your phone and only unlock devices for customers in good standing with their accounts.
• Unlocking your phone may not be possible, depending on your contract, device financing, or other factors.
• Ensure you follow your carrier’s instructions for unlocking your phone model to avoid issues.

Conclusion

Unlocking your phone opens a world of flexibility and potential savings. You’re free to choose any carrier, access more international roaming options, and even boost your phone’s resale value.

But remember, safety first! Avoid shady websites or unofficial tools promising instant unlocks. These can be risky and even harm your device.

Instead, opt for safe and legal methods. Contact your carrier directly to request a SIM network unlock PIN or use a reputable tool like Dr.Fone Remove SIM Lock. It offers a user-friendly interface and an efficient way to unlock your phone, empowering you to maximize your device usage.

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!

The Best Android Unlock Software For Oppo F23 5G Device: Top 5 Picks to Remove Android Locks

Are you looking for the best Android unlock software in 2024? Whether your Android device is locked due to a forgotten password, pattern lock, broken hardware key, or bootloader issues – unlocking it can be quite frustrating. Fortunately, there are several great Android unlock software available that make unlocking your device much easier. Here’s a look at five of the best Android unlock software in 2024:

Top 1: Dr.Fone - Screen Unlock (Android)

Is your Android lock screen causing you trouble? Forgot your password or pattern? Don’t worry, just use the Dr.Fone - Screen Unlock (Android) , a powerful tool that can help you remove the lock screen on your Android device. This software prepares you with simple instructions, wherein you can unlock your Android device screen within minutes, and save you from ending up with a locked phone after too many pin/passcode/pattern attempts.

You can even unlock part of Samsung and LG devices without data erasing , so you can still access the data after unlocking. Most softwares need to erase all data on the phone once the Oppo F23 5G device is unlocked and you cannot get the data back anymore. That’s terrible if you have many precious videos, photos, or other data on your device! Right?

Dr.Fone - Screen Unlock (Android)

Get Rid of Your Android Lock Screen in No Time

• Remove 4 screen lock types: pattern, PIN, password & fingerprints.
• Unlock 20,000+ models of Android phones & tablets.
• Bypass Android FRP lock without a PIN or Google account.
• Everybody can handle it without any technical background.

4,008,672 people have downloaded it

Let’s dive in and learn how to use this handy software

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Step 1. Initiate Dr.Fone on your computer, and select “Screen Unlock”

• You can also use this tool to unlock other Android phones including Huawei, Lenovo, Xiaomi, etc., the only sacrifice is that you will lose all the data after unlocking.

Step 2. Select Device Brand and Put Device into Specific Mode

• Choose the Oppo F23 5G device brand to unlock the screen, and your Android device will automatically enter the specified modee.

Step 3. Screen Unlocked Successfully

• Dr.Fone will start to unlock Android screen after getting into the specific mode. After completion, your Android phone is unlocked without the need to enter passwords.

You now have access to all data on your Android device with this Android unlock software free download. However, if you have trouble bypassing your Samsung Google account (FRP),  the FRP removal function of Dr.Fone-Screen Unlock can be helpful.

Top 2: NokiaFREE Unlock Codes Calculator

This wonderful utility is ideal to unlock cell phones. You can choose between Nokia, Samsung, Panasonic, LG, Alcatel, NEC, Maxxon, Sony, Siemens, and Vitel to enable the unlock feature.

• Step 1. Open the NokiaFREE Unlock Codes Calculator program.
• Step 2. Eight boxes and a window appear.
• Step 3. Enter the cell phone model of the first box.
• Step 4. Enter other details like DCT, IMEI, country, and company names in the subsequent boxes.

• Step 5. To get the EMEI code, check the cell “*#06#”.
• Step 6. Under options, choose IMEI Checksum Verification or Nokia Expert, Stretched, or Select Mode from IMEI.

• Step 7. The code is calculated to release your cell phone.

Top 3: Multi Unlock Software

Multi Unlock Software is a versatile phone unlock software for devices like Samsung, Sidekick, Sony Ericsson, Dell, iDen, Palm, ZTE, and Huawei. Easily unlock your phone with this Android unlock software free download.

• Ensure USB-Debugging is enabled. You’ll find it in the phone menu. If necessary, drivers can be installed.
• Click on the Check Connection button once using the “ADB Read Info” before you unlock.
• To locate the “Read Info” button, use the rj45 cable, or choose the phone modem.
• To locate the “Pattern Unlock” button, use the rj45 cable, or choose the phone modem.
• Versions later than “4XX do not have a pattern unlock support.
• Then follow on-screen instructions for each device.

For example, in a Motorola Iden,

Before you begin:

• Run the unlock client from “Start”> then Multi Unlock Client> then Unlock Client.
• Enter your username and password, then click on “save login data.”
• Under the Settings tab, ensure the “main server” is chosen.
• Ensure “Save Login Data” is enabled.

Step 1. Download the software and connect your phone to a PC

• Install your Motorola Iden Drivers. Go to Start> then All Programs > Nextgen Server> then iDen Code Reader> then iDen Drivers. Power connect the phone via a USB cable.
• Initiate “Boot Mode” by simultaneously clicking on * & # keys with a power-on handset.
• Connect the Motorola Iden phone to your PC via a USB cable.
• Windows will now download and install necessary drivers to activate the Android phone unlocking software.

Step 2. Removing CNS With This Android Unlock Software

• The first step is to initiate the unlock client/software feature. Click on Start> then All Programs> then Nextgen Server > then iDen Unlocker.
• Click on the tab “CNS unlock”.
• Initiate “Flash Strap Mode” by holding * and # keys with the power-on handset.
• Then connect your iDen phone to your PC via a USB cable.
• Unlock CNS New or Old accordingly.

Top 4: iMobie DroidKit

There might be many software solutions that you may counter; however, iMobie DroidKit provides you with the most effective toolkit for managing multiple Android scenarios. While supporting thousands of Android devices, users can easily unlock their Android device with its simple and intuitive interface. This software ensures that the Android device is easily recovered from any scenario where the Oppo F23 5G device is locked.

To understand how to unlock your Android software with iMobie DroidKit, you need to follow the steps explained below.

• Step 1. Download and install iMobie DroidKit on your computer. After connecting your device with the PC via USB, select the “Screen Unlocker” mode.

• Step 2. The platform prepares a configuration file for your device. Once prepared, tap on “Remove Now”.

• Step 3. You need to put your Android device in Recovery Mode. Follow the instructions provided by the software for removing the Wipe Cache partition on your device.
• Step 4. Over the removal of the cache, the Android starts to be unlocked. It takes some time to complete.

Click here

## Top 5: PassFab Android Unlocker

Another option that may feature your need for an Android unlock software is PassFab’s Android Unlocker. This platform has made device unlocking extremely simple and easy. It can perform all major kinds of procedures to help you cater to all the issues present in the Oppo F23 5G device.

You need to follow the steps explained below to understand the process of unlocking your Android using PassFab Android Unlocker.

• Step 1. Open the program and select the option of “Remove Screen Lock” after connecting your device to the computer with a USB cable.

• Step 2. The platform demands confirmation before starting the process. Click ‘Start’ to initiate the process.

• Step 3. The platform provides a prompt showing the completion of the task. The Android device will be successfully unlocked.

Frequently Asked Questions about Android Unlocking: Get the Answers Here

In this part, we will answer some frequently asked questions about Android unlocking to help you understand the process and make an informed decision.

Q1: What is an Android Lock?

An Android lock is a security feature that allows you to protect your device from unauthorized access. There are various types of Android locks, such as pattern locks, PIN locks, and fingerprint locks.

Q2: Why Would I Want to Remove an Android lock?

There are several reasons why you might want to remove an Android lock. For example, you may have forgotten your lock screen pattern, PIN, or password. Alternatively, you may have purchased a second-hand device with a locked screen and want to gain access to it.

### Q3: What is the Master Unlock Code for a Samsung?

A Master PIN code, also known as a Samsung Unlock Code , is a unique numeric code that can be used to unlock a Samsung device. This code is typically provided by the manufacturer or carrier and is used to remove any restrictions or limitations on the Oppo F23 5G device. It allows the user to use the Oppo F23 5G device with any carrier or SIM card, giving them more flexibility and freedom. It is important to note that the Master PIN code is different from the Oppo F23 5G device’s regular PIN or password, and it should be kept confidential to prevent unauthorized access to the Oppo F23 5G device.

Q4: Can I Remove an Android Lock Without Losing My Data?

If your device is Samsung or LG, Dr.Fone could help unlock your screen without erasing your data. Please check if your tool model is involved in the device information list .

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Conclusion

To conclude, for those looking for the best Android unlock software in 2024, our top recommendation is Dr.Fone - Screen Unlock (Android). With its exceptional features and high success rate, it outshines the competition. Whether you need to remove a PIN, pattern, or fingerprint lock, Dr.Fone offers a reliable solution. For more information and answers to frequently asked questions about Android unlocking, refer to our comprehensive guide on unlocking Android devices . Unlock your Android device with confidence using the top-rated Dr.Fone - Screen Unlock (Android).