Unlocking Made Easy: The Best 10 Apps for Unlocking Your Nokia XR21 Device

Android phones are extremely popular, but many feel that the otherwise great operating system does not allow the kind of freedom they want. One of the frequently brought up problems is the lock screen and the unlocking mechanism itself. With a lot of phones, it can be quite sluggish and slow. There are many applications that change the lock screen both from a style and a functionality standpoint, and some of them are quite impressive. A quality Android unlock screen app allows you to customize it while possessing the main characteristics that you are looking for in any good application.

There are a lot of apps like that these days, and choosing between them is not always an easy task. Let’s take a look at the best 10 unlock apps for android.

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Remove Android lock screen in 5 minutes

• Pattern, PIN, password, fingerprints & face screen lock can all be unlocked.
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• No tech knowledge asked, everybody can handle it.
• Unlock mainstream Android brands like Samsung, Huawei, LG, Xiaomi, etc.

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1.Hi Locker

Hi Locker offers a similar style to CyanogeMod’s lock screen both from an aesthetics and functionality standpoint. It has all the looks of the most popular devices including Lollipop and iOS, as well as a second screen containing the calendar and many more goodness. If you are looking for unlock apps for Android, Hi Locker is clearly one of the best choices.

Hi Locker allows password and pattern unlocking.

2.Lok Lok

Lok Lok has a unique take on the locking screen application niche, allowing you to send drawings to people who use the same application. It has the basic functions of course but it really is only fan when others you know, use the same app as well. This fact kind of restricts this otherwise excellent application but the idea is genius. An Android unlock screen app that allows your creative side to shine through.

This Android unlock app doesn’t allow pin lock screen at the moment, it can be unlocked with the home button

3.Next News Lock Screen

When you are looking for unlock apps for android, you don’t necessarily think about reading the news, yet many times you would go to lengths to find them. What if the news you find the most interesting would appear on your lock screen? Would that be something you’d interested be in? If the answer is yes, this Android unlock screen app is for you.

4.CM Locker

A very interesting application with a slide-to-unlock feature that’s eerily similar to iPhone devices. The app allows you to control several main phone functions including but not limited to brightness, WiFi, sound or Bluetooth. One of the most versatile unlock apps for Android.

This android unlock app allows pin and pattern unlock, and it also has an intruder alert (the phone locks and takes a photo when somebody unsuccessfully tries to unlock it).

Click here

## 5.Slidelock Locker

Another app that takes advantage of Apple’s popularity by bringing in the “slide-to-unlock” mechanics and the general aesthetic qualities of the iOS home screen. In addition to possessing the basic functions, this Android unlock screen app also highlights messages.

6.Semper

This Android unlock app was once called UnlockYourBrain and it is quite unique in the way that it will make you work for your phone time. This may sound ridiculous at first, but actually a very clever idea and naturally emergency numbers can be called at all times.

Google Play link: https://play.google.com/store/apps/details?id=co.unlockyourbrain&hl=en

How to unlock : Solve a problem or an equation to unlock the screen.

7.Next Lock Screen

Next Lock Screen is a cross platform unlock app that’s compatible with the complete Android ecosystem, making it one of the most valuable unlock apps for Android on the market. As a Microsoft product, it likes to advertise some of their other applications but this feature can thankfully be turned off. The notifications are clearly Microsoft quality which is not necessarily something that can be said about your average Android unlock screen app.

How to unlock : Pin,swipe or pattern.

8.AcDisplay

AcDisplay comes with a rather minimalistic look similar to some of the most popular web site creator services like Squarespace or Wix. The home screen will highlight notifications for which it will offer two options, either you swipe down in which case you will ignore the notification, or swipe anywhere else and the lock screen will unlock. What’s really great about this Android unlock app is the fact that it can use your device’s sensors, allowing it to detect its placement therefore whether or not it should be on or off.

Google Play link: https://play.google.com/store/apps/details?id=com.achep.acdisplay&hl=en

How to unlock : You can swipe anywhere on the screen.

9.C Locker Pro

It would be unjust to call it an Android unlock app, this application is actually a carefully selected package that allows you to do a lot of cools stuff with your new and improved home screen. Not only it supports the usually methods of unlocking like swipe or patterns, but you can actually set double or even triple tap options which is quite unique and a very good idea. The app has every other usual options including setting your favorite apps or showing the lock, as well as the date and the temperature of course.

Google Play link: https://play.google.com/store/apps/details?id=com.ccs.lockscreen_pro&hl=en

How to unlock : This Android unlock screen app allows you to unlock the screen with swiping, patterns or even specific number of taps.

10. Echo Notificaiton Lockscreen

Another minimalistic design that works quite well, it also allows you to set different notification categories like “work”, “media” or “social”. Not only that, but you can also choose various apps to go with those categories. Messages come through as well of course, all with a “slide to unlock” feature that is so popular these days.

How to unlock : Slide right like you would with an iOS device.

Bonus Tips: Easily bypass Android Lock Screen/Google FRP on Android with Dr.Fone - Screen Unlock (Android) . It effortlessly resolves issues like lost Google accounts, forgotten PIN codes, and unlocking used phones. Supported mainstream Android brands like Samsung, Xiaomi, Vivo, etc.

A Complete Guide To OEM Unlocking on Nokia XR21

Android, known worldwide as a major player in phone operating systems, stands out for its flexibility and open-source nature. This allows users to customize their devices extensively. However, despite this openness, certain features and capabilities can still be locked or restricted, either by Google or the Nokia XR21 device manufacturer.

For those looking to truly unleash the full potential of their Android device, an OEM unlock is an essential step. This article will delve into the process of OEM unlocking on Android, guiding you through its benefits and how to safely perform it.

OEM lock might sound like technical jargon to many. However, it’s a key concept for those who wish to dive deeper into Android customization. OEM stands for Original Equipment Manufacturer. Unlocking in this context refers to removing restrictions made by the manufacturer on the Nokia XR21 device.

This process allows you to gain deeper access to the Nokia XR21 device’s software. Thus, OEM unlocking is often required for customizing or modifying the system at a more advanced level.

Why Enable OEM Unlock?

The primary reason to enable OEM unlocking is to gain the ability to root your device or install custom firmware, also known as ROMs. Rooting is the Android equivalent of jailbreaking. It allows users to access and modify the Nokia XR21 device’s software at the deepest level.

This can enable the installation of apps and software that require more permissions than what is typically available. On the other hand, custom ROMs can change your device’s interface. They can also add features not available in the stock version of Android.

Pros and Cons of OEM Unlocking

Here are some great things you can get when you allow OEM unlock.

• The most significant advantage is the ability to customize your device far beyond what’s possible with standard settings.
• Root access. It allows for rooting the phone enabling advanced features and apps.
• Custom ROMs. Users can install different versions of Android or entirely new operating systems.

On the other hand, here are some cons that you must consider before performing the process on your phone:

• Security risks. Root access can make your device more vulnerable to malware and hacking.
• Void warranty. OEM unlocking often voids the manufacturer’s warranty.
• Potential for bricking. Incorrect procedures can render the Nokia XR21 device unusable, known as ‘bricking’.

Understanding the Risks

It’s crucial to understand that OEM unlocking is not without its risks. It does open the door to several customizations and tweaks. However, it can also compromise the security of your device. There’s always a chance of bricking your phone, especially if the unlocking process isn’t followed correctly or an unstable custom ROM is installed.

Additionally, most manufacturers will void your warranty once you unlock the bootloader. This leaves you without support in case something goes wrong. So, in the next sections, you’ll be guided through the steps of OEM unlocking. You’ll also learn how to do it safely, ensuring you make the most out of your Android device.

Part 2: How To Enable OEM Unlock on Your Android Phone

Enabling OEM unlock can feel like stepping into uncharted territory. Still, it’s relatively straightforward if you follow the right steps. Before you start, it’s important to remember that the exact process can vary slightly depending on your device’s brand and model. However, the general steps are usually similar across most Android devices.

• Step 1: Before proceeding, ensure you back up all important data. Enabling OEM unlock may require a factory reset, which erases all data on the Nokia XR21 device.
• Step 2: Go to your phone’s Settings > About Phone. Then, tap on the Build number seven times. You should see a message that says you’re now a developer.
• Step 3: Find and select Developer options on Settings. Then, tap OEM unlocking. You might need to enter a PIN or password.

Here are some common links where you might find the needed PIN or password:

• HTC
• LG
• Sony
• Huawei
• Motorola
• Samsung

After these steps, your device’s bootloader is now unlocked, and you can proceed with rooting or installing custom ROMs. Remember that this is a significant change to your device’s system, and it should be done cautiously and ideally only if you’re comfortable with potential risks.

Part 3: What Can You Do After OEM Unlock?

Unlocking your phone’s OEM opens up a world of possibilities. It allows you to customize your device beyond what’s available in its factory settings. This newfound freedom, however, comes with its own set of responsibilities and risks. Here’s what you can do after having your phone OEM unlocked.

Root Your Device

Rooting is akin to having the master key to your device’s software. It allows you to gain superuser access, enabling modifications and access to system files that were previously restricted. With rooting, you can:

• Remove pre-installed apps or bloatware.
• Customize system settings and UI elements.
• Enhance performance or battery life through underclocking or overclocking the CPU.

Flash a Custom ROM

A custom ROM is a new operating system you can install on your device. This is one of the most popular reasons for OEM unlocking. Custom ROMs offer:

• The latest Android updates, even for older devices, are no longer supported by manufacturers.
• New features and customization options that aren’t available in the stock ROM.
• Potential performance improvements and unique user interfaces.

Enjoy High Customization

With an OEM unlocked device, the sky’s the limit regarding customization. You can:

• Install custom kernels for better performance and battery life.
• Use powerful apps that require root access for advanced device management.
• Customize everything from the boot animation to the layout of your UI.

However, it’s crucial to proceed with caution. Rooting and installing custom ROMs can void your warranty and, if not done correctly, can turn your device into an expensive paperweight (a state often referred to as “bricking”). Always use reliable sources for your custom ROMs and root-access apps.

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## Bonus: How To Unlock Your Android Screen When You Forgot Password

Forgetting the password to your Android phone can be a stressful experience. It locks you out of your device. It cuts your access to personal data, contacts, and essential apps. However, aside from OEM unlocking, learning the skill of screen unlocking is incredibly useful in such situations. It’s not just about regaining access. It’s about harnessing control over your device during forgetfulness or emergency.

Wondershare Dr. Fone’s Screen Unlock (Android) will save you in these situations. It’s designed to unlock your phone without requiring a factory reset. It saves your data from being erased. This feature supports unlocking patterns, PINs, passwords, and fingerprints, offering a comprehensive solution for regaining access to your device.

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How To Perform Screen Unlock With Dr.Fone

The process is straightforward. It involves connecting your device to a computer and running the Dr.Fone software. Then, you’ll follow simple on-screen instructions. Learn how to do those below:

• Step 1: Go to Toolbox > Screen Unlock. Connect your Android device with your PC.

• Step 2: Select Android on this page.

• Step 3: Select Unlock Android Screen.

• Step 4: Select your device brand.

• Step 5: Click Remove without Data Loss.

• Step 6: After confirming device details, type “000000” to execute the operation.

• Step 7: Follow the on-screen instructions for putting your device into download mode. Then, wait for the process to finish.

• Step 8: Once complete, click Done. If your device still isn’t accessible, click Try again.

Conclusion

In wrapping up, you’ve explored the ins and outs of “what is OEM unlock” in the Android world. It’s a key to opening up a trove of customizability on your Android device. It lets you tweak and tailor your phone to your heart’s content. But remember, with great power comes great responsibility.

Diving into OEM

Top 10 Password Cracking Tools For Nokia XR21

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sentrypc.com/parental-controls/ ## **What is password cracking?**

Password cracking process involves recovering a password from storage locations or from data, transmitted by a computer system on network. Password cracking term refers to group of techniques used to get password from a data system.

Purpose and reason of password cracking includes gaining an unauthorized access to a computer system or it can be recovery of forgotten password. There might be another reason of using password cracking technique that is for testing password strength so hacker could not hack into system.

Password cracking is normally performed thought repetitive process in which computer applies different combinations of password till the exact match.

Brute Force Password Cracking:

Term brute force password cracking may also be referred as brute force attack. Brute force password cracking is respective process of guessing password, in this process software or tool creates a large number of password combinations. Basically it’s a trail-and-error technique used by software to obtain password information from system.

A brute force attack are normally used by hackers when there is no chance of taking advantage of encrypted system weakness or by security analysis experts to test an organization’s network security .This method of password cracking is very fast for short length passwords but for long length passwords dictionary attack technique is normally used.

Time taken by brute force password cracking software to crack password is normally depend upon speed of system and internet connection.

GPU Password Cracking:

GPU is graphics processing unit, sometimes also called visual processing unit. Before talking about GPU password cracking we must have some understanding about hashes . When user enter password the password information stored in form of computer hashes using the one-way hashing algorithm.

In this password cracking technique using GPU software take a password guess and look through hashing algorithm and compare it or match it with the existing hashes till the exact match.

GPU can perform mathematical functions in parallel as GPU have hundreds of core that gives massive advantage in cracking password. GPU is much faster than CPU so that’s the reason of using GPU instead of CPU.

CUDA Password Cracking:

CUDA Compute Unified Device Architecture is a model for programming and a platform that perform computations in parallel, created by NVIDIA for graphic processing.

CUDA Password cracking includes cracking passwords using Graphics card which have GPU chip, GPU can perform mathematical functions in parallel so the speed of cracking password is faster than CPU.GPU have many 32bit chips on it that perform this operation very quickly.

We can easily access CUDA through libraries, directives and with the help of different programming languages that includes C, C++ and FORTRAN.

Password Cracking Tools

Given below is the list of Top10 Password cracking tools.

1. Cain and Abel : Top password cracking tool for Windows

Cain & Abel is one of the top cracking tool for password cracking and password recovery for Windows OS.

Cain & Abel can use techniques of Dictionary Attack, Brute-Force and Cryptanalysis attacks to crack encrypted passwords. So it only uses the weakness of system to crack password. GUI Interface of software is very simple and easy to use. But have availability limitation, tool only available for window based systems .Cain & Abel tool have many good features some of the features of tool are discussed below:

Features of Cain & Abel:

• Used for WEP (Wired Equivalent Privacy) cracking
• Have ability to record conversation over IP
• Cab be used as Network Password Sniffer
• Ability to resolve addresses IP to MAC.
• Can crack verity of hashes including LM and NT hashes, IOS and PIX hashes, RADIUS hashes, RDP passwords, and lots more than that.

Site for Download:

http://www.oxid.it

2. John the Ripper : Multi-platform, Powerful, Flexible password cracking tool

John the Ripper is a free multi or cross platform password cracking software. Its called multi platform as it combines different password cracking features into one package.

It’s primarily used to crack weak UNIX passwords but also available for Linux, Mac, and Windows. We can run this software against different password encryptions including many password hashes normally found in different UNIX versions. These hashes are DES, LM hash of Windows NT/2000/XP/2003, MD5, and AFS.

Features of John the Ripper

• Supportive with Brute force password cracking and dictionary attacks
• Multi platform
• Available free for use
• Pro version is also available with additional features

Site for Download:

http://www.openwall.com

3. Aircrack : Fast and effective WEP/WPA cracking tool

Aircrack is a combination different tools used for Wifi, WEP and WPA passwords cracking. With the help of these tools you can crack WEP/WPA passwords easily and effectively

Brute force, FMS attack, and dictionary attacks techniques can be used to crack WEP/WPA passwords. Basically it collects and analyzes encrypted packets then using its different tool crack password out of the packets. Although aircrack is available for Windows but there are different issues with this software if we use this in Windows environment, so it’s best when we use it in Linux environment.

Features of Aircrack

• Supportive with both Brute force and dictionary attacks cracking techniques
• Available for Windows and Linux
• Available in live CD

Site for Download:

http://www.aircrack-ng.org/

4. THC Hydra : Multiple services supportive, Network authentication cracker

THC Hydra is a supper fast network password cracking tool. It uses network to crack remote systems passwords.

It can be used to crack passwords of different protocols including HTTPS, HTTP, FTP, SMTP, Cisco, CVS, SQL, SMTP etc. It will give you option that you may supply a dictionary file that contains list of possible passwords. It’s best when we use it in Linux environment.

Features of THC Hydra

• Fast cracking speed
• Available for Windows, Linux ,Solaris and OS X
• New modules can be added easily to enhance features
• Supportive with Brute force and dictionary attacks

Site for Download:

https://www.thc.org/thc-hydra/

5. RainbowCrack : New Innovation in Password Hash Cracker

RainbowCrack software uses rainbow tables to crack hashes, in other words we can say it uses process of a large-scale time-memory trade for effective and fast password cracking.

Large-scale-time-memory-trade-off is a process of computing all hashes and plain text using a selected hash algorithm. After calculations, obtained results are stored in the tables called rainbow table. Process of creating rainbow tables is very time consuming but when its done software works very fast.

Password cracking using rainbow table is faster than the normal brute force attack method. It’s available for Linux and Windows operating system.

Features of Rainbow Crack

• Support verity of Rainbow tables
• Runs on Windows (XP/Vista/7/8) and Linux operating systems (x86 and x86_64)
• Simple in use

Site for Download:

http://project-rainbowcrack.com/

6. OphCrack : Tool for Windows password cracking

OphCrack used to crack Windows user passwords with the help of rainbow tables that are available in a bootable CD.

Ophcrack is completely free to download, Windows based password cracker that uses rainbow tables to crack Windows user passwords. It normally cracks LM and NTLM hashes. Software has simple GUI and can runs on different platforms.

Features of OphCrack

• Available for Windows but also available for Linux, Mac, Unix, and OS X
• Uses for LM hashes of Windows and NTLM hashes of Windows vista.
• Rainbow tables available free and easily for Windows
• To simplify the process of cracking Live CD is available

Site for Download:

http://ophcrack.sourceforge.net/

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## 7\. Brutus : A brute force attack cracker for remote systems

Brutus is the fastest, most flexible, and most popular software used to crack remote system passwords. It guess password through applying different permutations or by using a dictionary.

It can be used for different network protocols including HTTP, FTP, IMAP, NNTP and other types such as SMB, Telnet etc. It also gives you facility of creating your own authentication type. It also includes extra options of load and resume, so process can be paused when required and you can resume process when you want.

It is only available for windows operation systems. Tool has a limitation that it has not been updated since 2000.

Features of Brutus

• Available for Windows
• Can be used with different network protocols
• Tool have many good extra features
• Support SOCK proxy for all types of authentications
• Capability of error handling and recovery
• Authentication engine is multi stage

Site for Download:

http://www.hoobie.net/brutus/

8. L0phtCrack : Smart tool for Windows password recovery

Just like OphCrack tool L0phtCrack is also a Windows passwords recovery tool uses hashes to crack passwords, with extra features of Brute force and dictionary attacks .

It normally gains access to these hashes from directories, network servers, or domain controllers. It is capable of doing hash extraction from 32 & 64 bit Windows systems, multiprocessor algorithms, scheduling, and can also perform decoding and monitoring networks. Yet it is still the easiest to use password auditing and recovery software available.

Features of L0phtCrack

• Available for Windows XP, NT, 2000, Server 2003,and Server 2008
• Can work in both 32- and 64-bit environments
• Extra feature of schedule routine auditing on daily, weekly, monthly bases
• After run it provide complete Audit Summary in report page

Site for Download:

www.l0phtcrack.com/

9. Pwdump : Password recovery tool for Windows

Pwdump is actually different Windows programs that are used to provide LM and NTML hashes of system user accounts.

Pwdump password cracker is capable of extracting LM, NTLM and LanMan hashes from the target in Windows, in case if Syskey is disabled, software has the ability to extract in this condition.

Software is update with extra feature of password histories display if history is available. Extracted data will be available in form that is compatible with L0phtcrack.

Recently software is updated to new version called Fgdump as Pwdump not work fine when any antivirus program is running.

Features of Pwdump

• Available for Windows XP, 2000
• Powerful extra feature are available in new version of Pwdump
• Ability to run multithreaded
• It can perform cachedump (Crashed credentials dump) and pstgdump (Protected storage dump)

Site for Download:

http://www.darknet.org.uk/

10. Medusa : Speedy network password cracking tool

Medusa is remote systems password cracking tool just like THC Hydra but its stability, and fast login ability prefer him over THC Hydra.

It is speedy brute force, parallel and modular tool. Software can perform Brute force attack against multiple users, hosts, and passwords. It supports many protocols including AFP, HTTP, CVS, IMAP, FTP, SSH, SQL, POP3, Telnet and VNC etc.

Medusa is pthread-based tool, this feature prevent unnecessarily duplicate of information. All modules available as an independent .mod file, so no modification is required to extend the list that supports services for brute forcing attack.

Features of Medusa

• Available for Windows, SunOS, BSD, and Mac OS X
• Capable of performing Thread based parallel testing
• Good feature of Flexible user input
• Due to parallel processing speed of cracking is very fast

Site for Download:

http://www.darknet.org.uk/