How To Fix OEM Unlock Missing on Vivo Y27s?

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 Vivo Y27s 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.

Click here

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 Vivo Y27s 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.

Click here

• 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.

Click here

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!

Forgot Pattern Lock? Here’s How You Can Unlock Vivo Y27s Pattern Lock Screen

Forgetting the pattern lock of a device and getting locked out of it is probably one of the most frustrating scenarios faced by Android users. Nevertheless, unlike popular operating systems, Android provides a seamless way to past the forgot pattern lock feature.

You can either try Google’s native solution or a third-party tool in case you have forgotten the pattern lock on your device and reset it. In no time, you will be able to access your device (or even someone else’s phone by following these techniques). To make things easier for you, we have provided three simple solutions to resolve forgotten patterns on Android devices.

Part 1: How to bypass forgot pattern lock using the ‘Forgot Pattern’ feature?

One of the easiest and fastest ways to fix the forgot pattern lock issue on a device is by using its inbuilt “Forgot Pattern” feature. If you are using an Android 4.4 or earlier version, then you can simply access this feature. Since users can hack an Android device just by knowing the Google credentials of the connected device, the solution was later discontinued (as it was considered a security vulnerability). Nevertheless, if your device hasn’t been updated and you are using an Android 4.4 or previous version, then you can bypass the forgot pattern lock by following these steps:

Step 1. Firstly, provide the wrong pattern to your device. It will let you know that you applied the incorrect pattern.

Step 2. On the same prompt, you can see an option of “Forgot pattern” on the bottom. Simply tap on it.

Step 3. This will open a new screen, which can be used to bypass the forgotten pattern of Android. Select the option for entering the Google Account details and proceed.

Step 4. To reset the forgot pattern lock, you need to provide the correct Google credentials of the account already linked to the Vivo Y27s device.

Step 5. After signing in to the interface, you will be asked to provide a new pattern lock for the Vivo Y27s device.

Step 6. Confirm your choice and set a new pattern lock on your device.

Part 2: How to get past forgot pattern lock using Dr.Fone - Screen Unlock (Android)?

One of the major drawbacks of the “Forgot pattern” feature is that it doesn’t work on new Android devices. Since most of the Vivo Y27s devices out there have been updated, the technique has been outdated. Therefore, you can simply take the assistance of Dr.Fone - Screen Unlock (Android) to bypass the forgot pattern lock on your device. Without causing any harm to your device or erasing its data, your device’s password or pattern would be removed.

It is a part of the Dr.Fone toolkit and is compatible with all the leading Android devices out there. It can be used to remove passwords, patterns, pins, and more. It has an easy-to-use interface and provides a simple click-through process to resolve the forgot pattern Android lock on your device. However, this tool merely retains all the data after unlocking Samsung and LG screens. Other Android locked screens can also be unlocked, and the only thing is that it will wipe all the data after unlocking.

Dr.Fone - Screen Unlock

Save You from Ending up with a Locked Phone After Too Many Pattern Attempts

• It can remove 4 screen lock types - pattern, PIN, password & fingerprints.
• Work for Samsung, LG, Huawei phones, Google Pixel, Xiaomi, Lenovo, etc.
• Unlock 20,000+ models of Android phones & tablets.
• Enable you to break your Android pattern lock without root.

4,008,669 people have downloaded it

Step 1. To start with, visit the official website of Dr.Fone - Screen Unlock (Android) and download it on your system. After installing it, launch the tool and select the option of “Screen Unlock” from the home screen.

Step 2. To use its forgot pattern lock feature, you need to connect your Vivo Y27s to your system using a USB cable. Once your device has been detected automatically, just click on the “Android”> “Unlock Android Screen” button.

Step 3. Select the correct phone brand. It is important to ensure phone brand correctness to prevent bricking.

Step 4. Then, enter “confirm” in the box to tell the tool that you agree to proceed.

Step 5. Now, in order to fix the forgot pattern Android issue, you need to put your device into the Download Mode. To do this, you need to ensure that your device is switched off. Once it is off, hold the Power, Home, and Volume Down buttons simultaneously. After a while, press the Volume Up button to put your device into Download Mode.

Step 6. After your device enters its Download Mode, it will automatically be detected by the interface. It will start downloading the needed recovery packages to resolve the issue. Sit back and relax, as it might take a while to download the recovery packages. Let the application process the essential operations, and don’t disconnect your Vivo Y27s until it is completed successfully.

Step 7. In the end, you will get a prompt like this on the screen, informing you that the password/pattern on the Vivo Y27s device has been removed.

That’s it! Now, you can disconnect the Vivo Y27s device safely and use it how you like.

Part 3: How to bypass forgot pattern lock using Android Device Manager?

To make it easier for its users to locate, lock, or erase their devices remotely, Google has developed a dedicated feature of the Android Device Manager. It is also commonly known as “Find My Device” as it is mostly used to locate a lost (or stolen) device. Though you can use this feature to ring your device, lock it, unlock it, or erase it remotely. You can access it from anywhere by providing your Google credentials and resolving the forgot pattern Android problem.

All of this can be done by following these steps:

Step 1. Launch a web browser of any device and go to the Android Device Manager website by clicking right here: https://www.google.com/android/find .

Step 2. You need to provide your Google credentials to sign in. Remember, this should be the same Google account that is linked to your device.

Step 3. After signing in, select the target Android device.

Step 4. You will get the location of the Vivo Y27s device with several other options (lock, erase, and ring).

Click here

Step 5. Click on the “Lock” button to reset its password.

Step 6. It will open a new pop-up window. From here, you can provide the new password for your device.

Step 7. After confirming your password, you can also provide an optional recovery message and phone number (if your device has been lost or stolen).

Step 8. Save your changes and sign out of your account from Android Device Manager.

This will automatically reset the old pattern on your device to the new password.

Part 4: How to bypass forgot Samsung pattern lock using Samsung Find My Mobile

Bypassing a forgotten Samsung pattern lock using the Samsung Find My Mobile service is a method specifically designed for Samsung devices. This method allows you to unlock your Samsung device without losing any data. It’s a convenient way to regain access to your device if you’ve forgotten the pattern lock.

However, it relies on having previously set up Samsung Find My Mobile and linked your device. Here is how to unlock your Samsung device with Samsung Find My Mobile:

Step 1: Access the Find My Mobile (SmartThings Find) website using either a computer or another mobile device. Sign in using the Samsung account details linked to the locked device.

Step 2: After successfully logging in, locate the locked Samsung device. Now, click on the “Unlock” feature. Upon choosing this option, a pop-up window will appear. It will prompt you to input your Samsung account password. Once you’ve entered your password, proceed to unlock the Vivo Y27s device by pressing “Next.”

Click here

Part 5: How to bypass forgot pattern lock using Safe Mode

If you have locked your device using a third-party app, there exists a simple solution. You can use the Safe Mode to remove the problematic app. Safe Mode is intended for troubleshooting and disabling third-party apps. Following are the steps you need to follow to use Safe Mode to unlock your Android device:

Step 1: Initiating Safe Mode requires a simultaneous three-second press of the “Volume Down” and “Power” keys. When the power menu becomes visible, proceed to long-press the “Power Off” icon.

Step 2: In a moment, you’ll see the option “Safe Mode” replacing the other “Power Off” menu options. Proceed to boot your device into Safe Mode and uninstall the troublesome application.

Click here

Part 6: How to bypass forgot pattern lock using Factory Reset

Bypassing a forgotten pattern lock on an Android device using a factory reset is a last resort. The reason is it will erase all data on your device, including apps, photos, and settings. However, it can be an effective way to regain access to your device when other methods have failed. Here’s how to do it:

Step 1: Turn off your Samsung device and connect it to your computer. Now press and hold “Volume Up” and “Power” keys for a while. Release the keys once the Vivo Y27s device enters Recovery Mode.

Step 2: In Recovery Mode, use the Volume keys to navigate to “Wipe data/factory reset” and select it with the “Power” key. Confirm the action on the next screen by selecting “Factory data reset.”

Wrap it up

If you have also forgotten the pattern lock on your device, then you can simply remove or reset it by following these solutions. In this way, you won’t even lose your important data files or cause any harm to your device. Without facing any unwanted setbacks, you would be able to bypass forgot pattern Android using Dr. Fone - Screen Unlock . It provides a fast, reliable, and secure solution to remove the lock screen security of an Android device in an effortless way.

Tips and Tricks for Setting Up your Vivo Y27s Phone Pattern Lock

Failing to remember the pattern lock of a phone is one of the most puzzling situations for Android users. Unlike the famous OS, Android gives a seamless method to eliminate the issue.

You can attempt the methods below or an expert tool if you have forgotten the pattern lock on your gadget and reset it. However, we suggest you try Dr.Fone - Screen Unlock for a quick and safe solution. To make things more straightforward, we have given you other techniques as a workaround to the issue.

So, keep following us to unlock the lock screen pattern and use your phone again.

Part 1: What Is Android Pattern?

A pattern lock is used to identify the actual user by your Android phone. It is a widely used phone locking system and a secured one. Simply put, a pattern lock includes a line pattern you choose that you can draw to unlock a lock screen. You can enable this lock screen feature from the security menu in the settings application.

So, if you have set a pattern lock as a screen lock for your device, you will need to draw the exact pattern every time you log in.

Part 2: Best Tool to Unlock Your Pattern

Dr.Fone - Screen Unlock

The most effective and quick tool to unlock a pattern lock is Dr.Fone - Screen Unlock by Wondershare. Dr.Fone is an all-in-one tool for all your Android needs and has been in the business for a long time. We suggest you use Dr.Fone. The following steps will help you unlock your device:

Step 1. Select the “Screen Unlock” option in the Dr.Fone interface.

Step 2. Select Unlock Android Screen

To unlock the pattern lock on your device, the “Unlock Android Screen” will guide you to finish the whole process.

Step 3. Select unlock mode

If you click “Remove without Data Loss,” only some limited Samsung or LG phone models can be unlocked without losing data. To unlock most phone brands’ screens, “100% Remove Screen Lock” is a better choice.

You can find the brand compatible with your phone in the following list.

Step 4. Go into Recovery Mode

Read the program instructions carefully; entering recovery mode is the prerequisite to unlocking the pattern lock.

(Here are 3 examples of Samsung phones)

How to get into recovery mode with Bixby

How to get into recovery mode without Bixby

How to get into recovery mode with Home button

Step 5. Instructions to Wipe Cache Partition

Now you’re in recovery mode, pick these options in the image below.

When the “Unlocked successfully” appears on the screen, you can access your device without a pattern lock or other locks!

Part 3: How to Bypass Android Pattern When You Forgot It?

1. Google Find My Device (For Android7.1.1 or later)

Step 1. Open the Android Device Manager site by typing https://www.google.com/android/find in an internet browser.

Step 2. You must give your Google ID credentials to sign in. Remember that this should be a similar Google account connected to your phone.

Step 3. After logging in, select your device.

Step 4. You will get three choices here, i.e., lock, erase, and ring.

Step 5. Click on the “Lock” button to reset its pattern.

Step 6. It will open another spring-up window. From here, you can give the new password to your phone.

Step 7. After affirming your PIN/password, you can give a recovery message and number (in case of theft only).

Step 8. Complete the process and sign out of your account on the browser.

2. Forgot Pattern (For Android 4.4 or earlier)

Step 1. First and foremost, give some wrong patterns to your phone. It will tell you that you attempted the incorrect pattern lock.

Step 2. On a similar window, click the “Forgot pattern” choice on the base.

Step 3. That will open another screen, which you can use to sidestep the forgotten pattern of Android. Select the choice for entering the Google Account credentials and continue.

Step 4. To reset the lock screen pattern, you must give the correct details of the Google ID previously logged into the Vivo Y27s device.

Step 5. After giving the correct details, you can provide another pattern lock to the phone.

Step 6. Affirm your decision and set another pattern lock on your phone.

3. Emergency Call Trick (For Android 5 or 5.1.1)

Step 1: Tap the Emergency Call button and enter ten asterisks (*).

Step 2: Copy and paste the asterisks on the dialer until you no longer see the paste choice.

Step 3: Return to the lock screen and tap on the camera symbol.

Step 4: Press the settings choice on your Android gadget after pulling down the notification tray. Now you will have the chance to enter the PIN/password, and you ought to continue unlocking your Android phone. Continue to paste until the lock screen UI crashes.

Click here

4. Safe Mode Boot (For Android 4.1 or later)

Step 1: You can bring up the power menu and hold the “Power Off” button for most phones, especially Android phones. A warning will spring up, asking whether you might want to Reboot to Safe Mode. Here, it would help if you had to press Ok.

Click here

Step 2: Clear your lock screen application’s data.

Clean data off your lock screen app, uninstall it, and then reboot your device to escape safe mode. When you do so, your phone or Android device will unlock.

5. Use ADB (USB required for Android 10 and lower)

• Connect your device to your PC using a USB connector.
• On your PC, open a terminal window (or command prompt).
• Type in the commands given below. Press Enter after each line:

adb shell

album/data/data/com.android.providers.settings/databases

sqlite3 settings.db

update system set value=0 where name=’lock_pattern_autolock’;

update system set value=0 where name=’lockscreen.lockedoutpermanently’;

.quit

exit

adb reboot

• After your gadget has rebooted, enter the command below:

adb shell

rm/data/framework/gesture.key

exit

adb reboot

• Your phone will reboot. After it reboots and requests a security pattern, you can utilize any pattern, and it will unlock.

Conclusion

This guide provides insight into the most common Android issue. Here, we have discussed different techniques to bypass the pattern lock on your Android phone. However, we suggest you go for a professional tool while carrying this out. Therefore, you should choose an expert tool like Dr.Fone - Screen Unlock to open the lock screen pattern.