How To Fix OEM Unlock Missing on Tecno Spark 20 Pro?

Original Equipment Manufacturer (OEM) Unlock is a function on Android devices. It allows you to unlock your phone bootloader. A bootloader or bootstrap loader gathers the operating system files, loads them into memory, and hands over control, essentially starting your device. Unlocking the bootloader assists you in installing custom ROMs, flashing custom kernels, and rooting your phone.

However, this freedom comes with some trade-offs. Most manufacturers will void your warranty if you unlock the bootloader, and it can also make your phone face higher risks of malware and other security threats. Additionally, it can be difficult to relock the bootloader once you unlock it.

If you encounter the OEM unlock missing on your Android phone despite wanting to unlock your bootloader, this article can help. You will learn the step-by-step guide for the different methods to fix the missing OEM unlock option. Before diving into solutions, let’s explore why this option might be unavailable in the first place.

Part 1: Why Is OEM Unlock Missing on Your Device?

Finding that OEM Unlock is missing on your Android phones can be frustrating, particularly if you plan to modify your software or install a custom ROM. But don’t worry. There are several possible explanations for this. Let’s explore some of the most common reasons:

Manufacturer Restrictions

The Missing OEM Unlock option can often be due to restrictions imposed by your device’s manufacturers. They may intentionally remove this option to safeguard device security and compatibility. It is common with carrier-locked devices. As a result, the OEM Unlock option may not show.

Bootloader Already Unlocked

In some cases, the Android OEM Unlock Missing issue arises when the bootloader has already been unlocked. Relocking the bootloader might make the option reappear. But exercise caution as this process can erase device data.

Developer Options Not Enabled

It might seem obvious, but sometimes the simplest things get overlooked. The OEM Unlock option can only be accessed from within Developer Options. If this menu isn’t enabled, you won’t see it.

Carrier-Locked Devices

The OEM Unlock Missing issue can also occur if your device is carrier-locked. Carriers often impose restrictions to prevent users from switching networks, and bootloader unlocking is one way to do that. Unfortunately, the missing OEM Unlock option is usually intentional, and unlocking your device can be more complicated.

Security Features

Enhanced security features, like Samsung’s KNOX, can sometimes conceal the OEM Unlock option. Temporarily turning off these features might show the option, but it’s crucial to be aware of the potential security implications of doing so.

Corrupted Bootloader

A corrupted bootloader can also lead to the Android OEM Unlock missing problem. The bootloader plays a role in the boot process, and if it’s damaged, it might not display the necessary options. This can be caused by software glitches, failed flashing attempts, or even hardware issues. In this scenario, you might need to consult your device’s manufacturer or a technical specialist to help repair or re-flash the bootloader.

Connectivity Issues

A poor connection between your device and computer can also prevent the OEM Unlocking from showing up. Check your cables and try using different USB ports to ensure a stable connection.

Part 2: How To Enable Missing OEM Unlock Without a Password?

Unlocking your phone’s bootloader (OEM Unlock) varies across models and brands. Some need a passcode or PIN after rebooting the phone, while others don’t. Even if your phone doesn’t require a separate password, your existing screen lock (password, PIN, pattern) will usually be needed to enable the missing OEM unlock option.

But what if you forgot that, too? Wondershare Dr.Fone - Screen Unlock can help bypass forgotten passwords and unlock your phone even if you don’t have the technical knowledge. Here’s a quick breakdown of its key features in this area:

• Success Rate

High success rate for bypassing various lock screen types, including PIN code, pattern lock, passwords, and fingerprints.

• Ease of Use

Provides a concise and intuitive interface that guides users with clear instructions and on-screen prompts.

• Comprehensive Features

Dr.Fone - Screen Unlock tool can remove the Android phone lock screen without resetting your Samsung or LG device. It can also help you bypass Google Factory Reset Protection (FRP) on mainstream Android brands.

• Extensive Device Compatibility

Aside from Samsung and LG, it covers a wide range of popular Android brands like Vivo, Huawei, Xiaomi, Oppo, etc.

Regain control in minutes with Dr.Fone. First, download the app to your desktop and install it. Once it’s up and running, launch Dr.Fone and prepare to unlock your device with ease. You’ll find detailed instructions below – even if you don’t know your phone’s lock screen, Dr.Fone has you covered.

• Step 1: Select Screen Unlock from the Toolbox homepage. Then, establish a connection between your locked Android device and your computer using a USB cable.

• Step 2: Specify the Tecno Spark 20 Pro device type for screen lock removal.

• Step 3: Select Unlock Android Screen to proceed.

• Step 4: Choose the brand of your phone from the supported brands.

Note:

The following steps will vary based on your device’s manufacturer. Please refer to the instructions on your screen to proceed into Download or Recovery mode.

• Step 5: The screen unlock process is underway. If it encounters trouble, click Try Again. Once Dr.Fone successfully unlocks your Android device, tap Done.

Now that you’ve regained access to your device thanks to Dr.Fone - Screen Unlock, you can move forward with enabling the OEM unlock missing option. Next up, we’ll guide you through the steps in several ways. Let’s start with the Developer options.

Part 3: How To Enable OEM Unlock Missing From the Developer Options?

Developer Options, a hidden menu in Android, offers advanced features like app debugging and custom ROM installation. But if the Android OEM unlock option is missing, you can’t unlock your device’s bootloader. Below is a step-by-step guide for you so the OEM unlock missing option will show in the Developer Options. Remember, this process may erase your device data, so a complete backup is essential before proceeding.

• Step 1: Open the Settings app on your Android phone.
• Step 2: Navigate to About Phone at the bottom of the list, then tap Software information.

• Step 3: Tap on the Build number repeatedly (7 times) until you see a message saying, “You are now a developer!“ or similar.
• Step 4: Go back to Settings > System and find the Developer options menu.
• Step 5: Scroll down and tap the toggle switch next to Enable OEM Unlock to turn it on.

• Step 6: A warning message explaining the risks of turning on the OEM unlock will appear. Read it carefully and tap Enable if you want to proceed.

• Step 7: Enter your PIN or password to confirm the unlock when prompted
• Step 8: Your device will reboot, and OEM Unlocking will be enabled.

Part 4: How To Fix OEM Unlock Missing by Adjusting Date and Time?

Some manufacturers intentionally delay the availability of the OEM unlock after a software update for security reasons. Changing the date to a past date before the update rolled out can trick the system into displaying the option, as it thinks the update hasn’t happened yet. It is a temporary fix, and the option will likely disappear again later when the Tecno Spark 20 Pro device automatically syncs the correct date.

If you intend to try this method, follow these steps to enable OEM unlock missing or greyed out after an Android update:

• Step 1: Open the Settings app.
• Step 2: Go to System or General management, depending on your Android version.
• Step 3: Tap on Date and Time.
• Step 4: Turn off Automatic date and time.

• Step 5: Tap on Set date and choose the desired older date from the calendar.
• Step 6: Tap on Set time and choose the desired time from the clock.
• Step 7: Tap on Done to save the changes.
• Step 8: Go back to the Developers options and turn off the Auto update system option.

• Step 9: Go to Settings > Software update, then turn off Auto download over Wi-Fi.

This method should enable the OEM unlock missing issue. Otherwise, proceed to the next section for another solution.

Part 5: How To Fix OEM Unlock Missing by Removing SIM Card?

Certain carriers restrict bootloader unlocking on their devices to ensure compatibility and prevent unauthorized modifications. For these phones, unlocking the SIM card becomes crucial before you can toggle the OEM unlock option. Here are the steps to fix the OEM Unlock missing or greyed out using SIM card removal:

• Step 1: Use the SIM ejector tool (often included with your phone) or a small pin to push the tray out.
• Step 2: Go to Settings > General Management > Reset, then select Factory data reset. Enter your PIN or password if needed.

• Step 3: Review the warning and tap Reset to confirm.
• Step 4: Once the reset is complete, your phone will restart. Connect to Wi-Fi when prompted.
• Step 5: Skip any prompts to log in to your Google or email account. Then, repeat the process to open the Developer Options in the previous sections.

Conclusion

Having the OEM Unlock missing or greyed out can leave Android users feeling locked out of customization possibilities. Fortunately, this article has outlined helpful solutions like enabling the Android OEM Unlock missing option via the Developer Options. You can also try other methods above, like adjusting date and time settings or even a sim card removal trick. For those facing forgotten lock screens, we’ve offered guidance on bypassing them using the Dr.Fone - Screen Unlock tool to access the necessary phone settings.

While these methods provide a solid foundation, it’s always wise to research steps specific to your phone model. And never forget – caution is key. If things get technical, don’t hesitate to seek help from online communities or professional repair services.

Tips: Forget your device password and can’t get access to it? No worries as Dr.Fone is here to help you. Download it and start a seamless unlock experience!

Still Using Pattern Locks with Tecno Spark 20 Pro? Tips, Tricks and Helpful Advice

They have been along for a long, long time now – pattern locks – the easiest of all smartphone locks. You just swipe your finger across to create an easy pattern lock of your choosing and that’s it, it becomes your new screen lock. No more remembering tedious digits! So, why have these easy pattern locks become outdated, and why do people still continue to use them? Let’s take a dive and find out all about pattern locks.

Part I: Things To Know About Pattern Locks

The first cellphone locks were 4-digit number locks. Then came 6-digit codes, and even alphanumeric ones. Pattern locks were all the rage a while ago. Though pattern locks continue to be used, they are not considered safe to use any longer. What is all that about? Here’s what you need to know about pattern locks, whether you are a seasoned pattern lock user or not.

I.I: What Are Pattern Locks?

Believe it or not, technology has advanced at such a rapid pace in the last two decades that you’d be forgiven if you don’t know what a pattern lock is, especially if you have only ever used iPhones, or Android phones in just the last few years.

Pattern locks are patterns you create on your smartphone and designate as a smartphone lock/ screen lock. There is a 9-point keypad of sorts, and you start swiping your finger from any point to any point for any which way you feel like. Android 13 allows a minimum of 4 points registered. They are easy to create, and easy to use, hence called easy pattern locks.

Pattern locks have only ever been offered on Android devices and were commonplace a few years ago until they were deemed not secure enough for use by modern standards because they were easy to figure out by malicious actors.

I.II: Popularity and Usage

Pattern lock is a feature unique to Android and has been so since the start. Naturally, it is one of the preferred ways users have come to unlock their Android devices over the years. Even though modern Android smartphones come with fingerprint recognition and face recognition technologies, there exists a large subset of users still addicted to and acclimatized with the pattern lock feature, opting over fingerprint and face recognition.

There has been, however, research conducted into the safety and security offered by pattern lock in Android.

I.III: Advantages and Drawbacks

Modern smartphones very nearly contain the entirety of our lives; photo memories, video memories, important documents both financial and personal in nature, banking apps, ID and ATM/ credit cards in the “wallet” apps, and whatnot. A smartphone falling into the wrong hands could very nearly be used to devastate the rightful owner, both financially and otherwise. And this is not a claim out of thin air; spyware/ malware/ phishing attacks are on the rise around the world. Locking the smartphone, once considered optional and an unnecessary hassle, is now an absolute must.

Advantages of Pattern Locks

There is no denying that using an easy pattern lock to lock their smartphone seems enough for most users. Swiping your finger across your smartphone to unlock it feels not only cool and futuristic but safer and more secure than remembering and punching in digits. And, for the most part, it is true, given that 4-digit PINs can only have 10,000 unique combinations!

Disadvantages of Pattern Locks

While very easy to use, security researchers and experts have come to agree that the feature is not in the least safe to use, and that is because of how people use the pattern lock feature (discussed in detail below in part II). Some go so far as to say that most pattern locks can be breached in just 5 attempts or less. Imagine that!

What is more, research has found that humans have an uncanny ability to correctly guess a pattern lock simply by viewing the unlocking! The test comprised showing the test subjects videos of users unlocking their phones from different angles and varying distances, and it was found that around 64% of test subjects were able to correctly guess a 6-point pattern lock in one viewing only, and 80% could correctly guess the pattern after just two viewings. By contrast, only 11% were able to correctly deduce a 6-digit PIN after one viewing, and only 27% after viewing twice. This goes to show just how insecure pattern locks are!

Part II: How People Use Pattern Locks

We might wonder how anyone would be able to guess the correct pattern of our device, but believe it or not, it is possible, eerily easily at that! We are all the same humans, after all! You know how people usually set PINs that could be significant dates in their lives? How they get car registration numbers that mean something to them? The same ‘logic’ applies to their setting pattern locks.

At DEFCON 23, Marte Loge, an M.Sc. Computer Science student, presented something that stunned people around the world. She said, “Tell me who you are, and I will tell you your lock pattern.” What followed was an expert presentation outlining and detailing user behaviors around pattern locks.

These are some commonly created pattern locks by people:

• - shapes of alphabets,
• - shapes of numerals,
• - any other easy-to-make, simple shape.

Marte Loge presented the image below, showing how people naturally gravitate towards creating simple shape patterns, in her research.

To further help you see how easy it might be for anyone to guess your pattern, Marte Loge also presented some statistics.

• - 77% of people started their patterns in one of the 4 corners.
• - 44% of Loge’s subjects started their pattern with the first dot, the top-left one. The next number was 15% for the top-right and 14% for the bottom-left.
• - These percentages did not vary much depending on left-handedness or right-handedness.
• - On average, irrespective of gender, people set 5-point patterns, with 4-point patterns being the most common. This means that the number of combinations on average was 7152 for 5-point patterns and a bogglingly low 1624 for 4-point patterns.

The above data makes it amply clear how using an easy pattern lock is actually worse than using a 4-digit PIN, simply because how people are usually using the pattern lock feature.

Part III: Tips For Using More Secure Pattern Locks

Now, we know how hard it is to break habits cemented over years of use, so in case you must at all costs use a pattern lock only, the least you can do is try and change your easy pattern lock to a better, more secure hard pattern lock.

III.I: How to Create More Secure Patterns

Here are some tips to help you create a better, more secure pattern lock for your smartphone.

• - Avoid using any of the corners to start the pattern.
• - Never use your first initial as a pattern.
• - Never use a digit shape as a pattern.
• - You can pass through the same pattern lines multiple times over. This makes it more difficult for someone to guess your pattern correctly.
• - Use all 9 points on the grid while setting the pattern lock! That simple act takes the possible pattern combinations to over 140,000, significantly more than 10,000 for 4-digit PINs, and vastly superior to paltry 1624 for a 4-point easy pattern lock!

III.II: Forgot Your Pattern? Unlock Your Tecno Spark 20 Pro Without Pattern Lock With Dr.Fone

Supercharged with the information above, you went ahead and changed your easy pattern lock to a hard-to-guess pattern lock. Only problem is, your brain is habituated to that old pattern, and you’ve suddenly forgotten what the new pattern was! Well, worry not; Wondershare Dr.Fone - Screen Unlock (Android) will help you unlock your phone without pattern lock !

Dr.Fone - Screen Unlock (Android)

The Best Tool to Unlock Your Tecno Spark 20 Pro without Pattern Locks!

• Remove all Android screen locks (PIN/pattern/fingerprints/face ID) in minutes.
• Bypass the FRP lock of Samsung without a PIN or Google account.
• Everyone can handle the lock screen without any tech knowledge.
• Provide specific removal solutions to promise good success rate.

4,008,669 people have downloaded it

Download the newest version of Dr.Fone from the Wondershare website and launch the app.

Step 1: Go to Toolbox > Screen Unlock and click Android.

Step 2: Click Unlock Android Screen.

Step 3: You will see a list of supported manufacturers on the next screen. Select yours.

Step 4: Now, follow the onscreen guide to prepare your device for screen unlocking.

After completing the process, when the Next button becomes available, click it.

Your device will be successfully unlocked.

Note that this method wipes all data on the Tecno Spark 20 Pro device. There is no way around it. You may be able to unlock select older Samsung devices without data loss. Check this list for those devices.

Closing Words

Pattern locks are outdated and not safe to use an easy pattern lock – there are no two ways about it. As such, our recommendation is to start using a 6-digit PIN along with biometric or face recognition. However, we do understand that sometimes, you simply cannot use biometrics or face recognition. For those instances, we recommend that you use this guide and create a more secure pattern lock for your device. In case you forgot your pattern, there is always Wondershare Dr.Fone – Screen Unlock (Android) to save the day.

How to Bypass Android Lock Screen Using Emergency Call On Tecno Spark 20 Pro?

The main reason why we keep our smartphone locked is to prevent children (or stalkers) checking out our private photos or messages. You don’t want anyone to access your pictures, emails, or other important data. What if you forget your pattern or PIN and cannot access your phone? Or someone changes lock screen pattern to leave you annoyed?

To avoid such types of conditions, we have tried and tested the following methods to bypass the Tecno lock screen pattern, PIN, password, and fingerprint.

Method 1. Use ‘Find My Mobile’ feature on Tecno Phone

All Tecno devices come with the “Find My Mobile” feature. To bypass the Tecno lock screen pattern, PIN, password, and fingerprint, you can just follow the below steps to get it done.

• Step 1. First, set up your Tecno account and log in.
• Step 2. Click the “Lock My Screen” button.
• Step 3. Enter a new PIN in the first field
• Step 4. Click the “Lock” button at the bottom
• Step 5. Within a few minutes, it will change the lock screen password to the PIN so that you can unlock your device.

Method 2. Use Android Device Manager to Bypass Tecno Password

To know how to unlock a Tecno phone lock password with Android device manager, make sure the Android Device Manager is enabled on your device.

• Step 1. Visit google.com/android/devicemanager on other smartphones or PC.
• Step 2. Log into your Google account that you used on your locked device.
• Step 3. Choose the Tecno Spark 20 Pro device you want to unlock in ADM interface
• Step 4. Click on the “Lock” option.
• Step 5. Enter a password. There is no need to enter any recovery message. Select “Lock” again.
• Step 6. You would see a confirmation below if it is successful, with “Ring, Lock and Erase” buttons.
• Step 7. Now you must get the password field on your phone where you can enter your new password, and your phone will be unlocked.
• Step 8. Go to lock screen settings on your device and disable the temporary password.

Method 3. Google Login (Supports Only Android 4.4 or Lower)

If your device is still running on Android 4.4 or lower, here’s how to bypass the Tecno lock screen fast.

• Step 1. Enter the wrong pattern for five times
• Step 2. Choose “Forgot Pattern”
• Step 3. Enter your Google account login or backup PIN
• Step 4. Now your phone would be unlocked.

Method 4. ‘Pattern Password Disable’ and Custom Recovery (SD Card needed)

To bypass the Tecno lock screen in this method, you ought to be an advanced user who knows what are “custom recovery” and “rooting”. You have to install any kind of customer recovery, and you should have an SD card on your phone. SD card is required to move a ZIP file to the phone, and it is the only way to transfer the file when the Tecno Spark 20 Pro device is locked.

• Step 1. Download a zip file named “Pattern Password Disable” on your computer and move it to the SD card of your Tecno device.
• Step 2. Insert the card on your device
• Step 3. Restart your device into recovery mode.
• Step 4. Flash the file on your card and restart the phone.
• Step 5. Now your phone would boot up without lock screen. Don’t worry if you had a gesture lock or password. All you need to do is to input a random gesture or password, and it will be unlocked.

Method 5. Delete the Password File Using ADB

It is yet another option that will work only when you have enabled USB Debugging previously on your device, and your PC is allowed to connect via ADB. If you meet such requirements, it is ideal to use this method to unlock the Tecno lock screen.

• Step 1. Connect your device to the PC using USB cable and open command prompt in the adb directory. Type the command “adb shell rm /data/system/gesture.key” and then press “Enter”.
• Step 2. Restart your phone, and a secure lock screen must be gone, and you can access your device. Be sure to set a new PIN, pattern, or password before rebooting again.

Method 6. Factory Reset to Bypass Tecno Lock Screen

A factory reset is the best option in almost any case if one of these solutions couldn’t work. According to your device type, the process may vary. In most devices, you have to turn off the Tecno Spark 20 Pro device completely to start the process. But this method will delete all the precious data on the Tecno Spark 20 Pro device after the factory reset.

• Step 1. Hold the power button and volume down at the same time. It will open the Bootloader menu.
• Step 2. Press the volume down button two times to choose “Recovery Mode” and select it by pressing the “Power” button.
• Step 3. Hold down the power button and tap “Volume Up” once, and you would enter “recovery” mode.
• Step 4. Choose “Wipe Data/Factory Reset” option by using volume buttons.
• Step 5. Select it by pressing the Power button.
• Step 6. Select “Reboot System Now” once the process is done.

Backup your Tecno phone regularly in case of any data loss in the future.

Method 7. Boot into Safe Mode

Chances may be that you are using a third-party lock screen app. Then lucky for you, this way works best to bypass the Tecno lock screen. Specifically, you can boot your Tecno device into Android Safe Mode .

• Step 1. Open up the Power menu from the lock screen and press and hold the “Power Off” option.
• Step 2. It will ask if you want to boot in safe mode. Tap “OK”
• Step 3. Once the process finishes, it will temporarily disable the lock screen activated by the third-party app.
• Step 4. Uninstall the third-party lock screen or just reset the data.
• Step 5. Reboot your device and get out of safe mode.
• Step 6. Now the irritating lock screen app is removed completely.

Method 8. Other Methods

• Step 1. Take your friend’s phone to call on your locked phone.
• Step 2. Accept the call and press the back button without disconnecting.
• Step 3. Now you can access the Tecno Spark 20 Pro device completely
• Step 4. Go to the security settings of the Tecno Spark 20 Pro device and remove the pattern or pin.
• Step 5. It will ask you the correct pin that you don’t know, guess, and try various combinations you can recall.

To avoid forgetting your password or PIN next time, be sure to write the pattern or numbers on a text file or paper to keep them safe. If you have to bypass the Tecno lock screen pattern, PIN, password, and fingerprint, you may consider using Dr.Fone - Screen Unlock (Android). It is a professional tool that can remove all the fingerprints, pattern, and password lock screens without losing any data on your phone.

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