How To Fix OEM Unlock Missing on Vivo V27 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 Vivo V27 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 Vivo V27 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!

Everything You Need to Know about Lock Screen Settings on your Vivo V27 Pro

Everybody of you is well familiar with Android lock screen and it can be undoubtedly said that lock screen does a great job for an Android user. It really works as the main gate of your Android device. It also works as a safeguard of your device from unauthorized access if you enable some sort of protection. By the way, activating the lock screen is optional as you can customize or deactivate it from android lock screen settings.

Here’s a charm that’s you can unlock your lock screen by many ways and you’ve to set the ways from android lock screen settings. Now you’ll come to know how to set different types of screen lock, customize Android lock screen, and even unlock your android phone without resetting it as all the ways of unlocking is related to the Vivo V27 Pro device when it’s switched on.

Different Ways of Unlocking Your Vivo V27 Pro

First look at the procedures on how you can enable the lock screen functionality from android lock screen settings. To reach the lock screen settings android, you’ve to follow the path:

Options – Security – Screen Lock – Choose Screen Lock.

Now see how to unlock your lock screen in different ways.

1.Slide

This is the most common method of unlocking an android lock screen. On all most all the android device, you’ll notice a lock mostly on the right side (sometimes on top) of a round charm. You just have to direct towards the lock and then the lock screen will be unlocked in no time. This method doesn’t provide any security (it just protects your device from sudden access by tapping on screen or any of the button) to your device as no password or PIN is required to set the “Slide” unlock.

Keep your any finger on the middle of the round charm and by keeping your finger pressed, reach on the lock icon. The lock screen will be unlocked just after reaching your finger to the lock icon.

2.Face Unlock

This method of unlocking your lock screen needs your Android device to snap a photo of your with its camera. After you set the snapped photo as the unlocking recognition, you could unlock your device through showing your face on the screen.

Capture a picture of your face with your Android device’s camera and then set it for logging in into your device. From the lock screen, by just by holding your face, you can log in. It’s very interesting, but you should never rely on this method for strong security as this method of unlocking is prone to break easily as an intruder can unlock your device by putting a photo of you in front of your device. Moreover, this method sometimes doesn’t work properly. So it’s better to go for some other highly secured options for locking your screen.

3.Pattern

This is a way of setting pattern for lock screen from a grid of nine dots. You can select the pattern like some letter like Z, L or C etc, but nothing guarantees high security as the set pattern can be easily guessed or be seen while you are unlocking your device. Another problem is that by unlocking with the same pattern, your finger leaves some marks for the pattern’s path. By following the path, a stranger can unlock your device. So for little security, you can use pattern unlock method on your Android device.

Go to the lock screen setting for Pattern and then set the pattern by sliding your finger from one dot to another, then another and like that way. Remember which pattern you’ve set in order to unlock your device in the next time.

4.PIN

You might be troubled by thinking about the difference between PIN and Password. A little distinction is there for a PIN and that is it consists of numbers only whereas for password, you can associate some alphabetical letters or signs along with numbers.

Go to the lock screen setting for PIN and then set a PIN that consists of minimum 4 digits. It’s your choice to use 4 or more digit PIN. After setting the PIN, you can access your Android device by putting the PIN in a box from the lock screen. PIN protected lock screen is highly protected if the PIN is set strongly.

5.Password

In addition to PIN protection, you can consider it as password by adding some letters, special characters with the previously selected PIN codes. It’s also very much highly protected method of locking screen though you might be bored with tapping for the password again and again. But never ignore the value of your device’s files, so a password can be a well-sought lock screen protection for many users.

6.Fingerprint

In some of the modern Android device, you’ll find the feature of fingerprint unlocking. You can find the option through the screen or any dedicated button. By setting your fingerprint, you can unlock your device by tapping your finger on the Vivo V27 Pro device’s screen or the dedicated button.

7.Voice

This is also a fun way of unlocking Android lock screen as you can unlock by saying the same voice that you’ve saved as the unlocking recognition.

Go to the setting from “Voice Unlock” button and record your voice such as “Open My Vivo V27 Pro” or as per your choice with clear sound. Repeat the voice a few more times as to match well. Then set and unlock your device from the lock screen by using the same voice command.

Customize Android Lock Screen

Lock Screen Widgets

Widgets can be used from Android lock screen without unlocking the Vivo V27 Pro device first. Also, because of this, any one who can access your phone can see your information from widgets. But since Lollipop update, widgets has been changed to Notifications on Android. Here, let’s see how to set customize widgets on Android running OS before lollipop. You can also find some useful alternatives to lock screen widgets here.

For devices running Android 4.2 or 4.3, lock screen widgets are enabled by default. So you can use them directly. For users of KitKat, you can go to Settings, select Security, and find Enable Widgets option. To add a new widget to the lock screen, swipe the screen from left to right until there is a plus on the screen. Tap the plus and select the widget you would like to add. You can also drag the widgets to repalce it.

Smart Lock on Android

Smart Lock is a new feature introduced in Lollipop. It helps you keep your device unlocked when it’ safe with you, by recognizing locations, bluetooth system, or smartwatch etc. To know more about Smart lock settings , just follow the information here.

Customize Lock Screen Wallpaper

Except all the different types lock method to protect your phone, there are also many wallpapers to make your lock screen lool beautiful or cool. Click here to check out how to change lock screen wallpapers and download more beatiful wallpapers from different sites.

Bypass your Samsung Phone’s Lock Screen using Dr.Fone - Screen Unlock (Android)

This is an easy way to unlock your Samsung device if you forgot your Samsung’s lock screen pattern, PIN or password.It’s named Dr.Fone - Screen Unlock (Android) ,which is the best tool to solve your problems with simple steps.

Note: If your are using Samsung or Lg, then this tool can perfectly remove the locked screen while keeping all the data. As for thoes users who are using Andriod phone, this tool still can help you unlock the screen while you will lose all your data after unlocking.

Dr.Fone - Android Lock Screen Removal

Remove 4 Types of Android Screen Lock without Data Loss

• It can remove 4 screen lock types - pattern, PIN, password & fingerprints.
• Only remove the lock screen, no data loss at all.
• No tech knowledge asked, everybody can handle it.
• Work for Samsung Galaxy S/Note/Tab series, and LG G2/G3/G4, etc .

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Follow the steps on how to bypass your Samsung Phone’s lock screen by Dr.Fone - Screen Unlock (Android)

Step 1. Run Dr.Fone and choose “Screen Unlock”.

Step 2. Connect your Samsung with USB on computer,then you will see the windows as follow,and select phone model in the list.

Step 3. Enter the download mode on your Samsung device. Follow the guide of the windows.

• 1.Power off the phone.
• 2.Press and hold volume down + home button + power button at the same time.
• 3.Press the volume up to enter download mode.

Step 4. Download the recovery package after your device model matched successfully.

Step 5. When the recovery package is downloaded completed,you can start the process of unlock,the whole process won’t lose any data on your device.You can access your device without entering any password or PIN after the process is finished.

Video on How To Remove Android Lock Screen

5 Solutions For Vivo V27 Pro Unlock Without Password

One out of three people forget their phone’s password every day or make continuous wrong attempts that lock their phone. However, you can’t unlock your phone without the screen lock pattern or password. If you are an Vivo V27 Pro user, and you can’t remember your device’s pattern or password, we have the best solution or you. Here, you will find the easiest and foolproof methods for an Vivo V27 Pro pattern unlock.

Here is the complete guide with five methods to unlock an Vivo device that works in various situations. Every method is easy to use, and you can unlock your phone as long as you follow each step precisely. With our guide, you can remove your Vivo ‘s pattern, PIN, or password with your Google account. We also have various ways to unlock Vivo V27 Pro without your Google account.

Here is a video for you to learn how to unlock Vivo V27 Pro without password:

Part 1: Lock System About Vivo V27 Pro

1: Lock Types

Before we move towards the Vivo V27 Pro pattern unlock, let’s talk about its lock types and security system. Vivo V27 Pro is one of the older versions of Vivo android phones that was released in 2016. At that time, only flagship phones from each brand came with features like fingerprint sensors and facial unlock. Vivo V27 Pro doesn’t offer these lock types. You can only set up a screen lock as a password, pattern, and PIN. You can also lock apps on Vivo V27 Pro with its privacy password settings.

2: How to Set Them up?

Follow these steps to set up any type of lock on your Vivo V27 Pro .

• Open “Settings” on your mobile and select “Lockscreen and Password”.
• The lock system menu would appear if your device had no screen locks. If your device has a screen lock, you will have to enter the password to enter the settings.
• Select the “Lockscreen Password” option at the top and tap on the “Enable Lock Screen” button.
• Select the type of lock you want to set and create a password.

3: How to Remove Them with Password or Pattern?

You can easily remove the lock screen of your Vivo V27 Pro if you remember your password or pattern.

• Go to “Settings” and follow the previous steps to open the “Lockscreen Password” settings.
• Disable the lock screen by tapping on the “Enable Lock Screen” button once.
• Enter your password or pattern and wait for the system to remove the screen lock.

Part 2: 5 Solutions to Unlock Vivo V27 Pro Without Password or Pattern

1: Google Find My Device

You can use the Google Find My Device for your Vivo V27 Pro pattern unlock. It is a simple privacy and security Google feature that enables users to reset their android phones. Most people use it to factory reset their phones when someone steals their phones. Although Google Find My Device works every time, it is not the ideal solution if you don’t want to lose your data. With a hard reset, you lose all your data and settings. It is not worth it if all you want to do is unlock your screen. Here are the steps to unlock Vivo V27 Pro with Find My Device.

• Open any browser on your PC and visit “Google Find My Device.”
• Make sure your phone is connected to the internet.
• Select the “Erase Device” option and log in with your Google account.
• After verification, click on “Ok” and wait for the system to factory reset.
• Power on your device and enter it without any pattern or password.

2: Google Account

Here is how you can do an Vivo V27 Pro pattern unlock without PC. You don’t need any third-party software or device for this method. Every step is easy to follow, and it only takes a few minutes for you to unlock your phone. This method requires your Google account and password. Don’t use this method if you don’t know your Google password. If you are a beginner, it is better to use other methods because this method involves the risk of blocking your device. Follow these steps to unlock your Vivo device using your Google Account.

• Enter a random password or PIN on your phone’s lock screen five times.
• Wait for the system to give the alert message after you enter the wrong password five times.
• Now, wait for 30 seconds until the system asks you to enter your lock screen password.
• At the bottom left corner, tap the “Forgotten Password” option.
• Now the system will ask for your Google account and password.
• After you verify your Google account, you can enter your device.

3: Answer Security Questions

If you want to unlock your Vivo phone, you can also answer some security questions and reset the password. This method does not work on all Vivo devices, but you can use it for Vivo V27 Pro screen unlock without PC. You will see various questions if your Google account is linked with the Vivo V27 Pro device. All questions are based on your profile and credentials. You have to answer precisely with proper spaces. Here are the steps to unlock Vivo V27 Pro with security questions.

• Use a random password or PIN five times and wait for the 30 seconds alert message.
• Tap on the “Forgot Pattern” option and move to the next screen.
• Select the “Answer Question” option if you want to unlock security questions. You can also select “Enter Google account details” if you know your Google account password.
• Tap on the “Next” button and answer every question that comes up.
• If you give correct answers, the system will open the screen lock.

4: Hard Reset (data loss)

A hard reset would be the best solution if you forgot your phone’s lock screen password or pattern. However, you can unlock your phone with your Google account as well. Do a hard reset if you can’t remember your Google account password and don’t want to use third-party tools. The only problem with hard resetting is that you lose all your data, images, files, settings, and personalization. That is why you can’t recover any of your data after the hard reset if you don’t have a data backup. The process of hard reset is different for every device. Here are the steps for Vivo V27 Pro pattern unlock without a PC through a hard reset.

• Switch off your Vivo V27 Pro with the power button.

• Press and hold the Volume down + Power buttons together for a few seconds. Hold the keys until you see the Vivo logo on the screen.

• Select the Language using the volume keys to navigate and the power key to select.

• Go to the “Wipe Data and Cache” option and select twice using the power key.

• For confirmation, select the “OK” option and wait for the system to reboot.

5: Dr.Fone - Screen Unlock

You can easily unlock your Vivo device without your Google account password and losing data. The best way is to use an Vivo V27 Pro pattern lock removal tool. If you want an easy-to-use tool with fast and safe working, we recommend Dr.Fone - Screen Unlock. Dr.Fone enables users to unlock any android device within five minutes without password, Google account. You can unlock your Vivo V27 Pro without effort. With Dr.Fone, you can also back up and restore your data , do a system repair for your mobile, and transfer WhatsApp with a few clicks. Here are the steps to remove the pattern lock from Vivo V27 Pro with Dr.Fone – Screen Unlock.

Dr.Fone - Screen Unlock (Android)

The Best Tool to Unlock Vivo V27 Pro Without Any Hassle!

• Remove all Android screen locks (PIN/pattern/fingerprints/face ID) in minutes.
• Remove the lock screen without data loss for part of Samsung and LG devices.
• Everyone can handle the lock screen without any tech knowledge.
• Provide specific removal solutions to promise good success rate.

4,008,672 people have downloaded it

Step 1. Click the “Start Download” button to download the software on your PC.

Open Dr.Fone on the PC with a USB cable connected to your phone > click “Screen Unlock” from the home page.

Step 2. Select Unlock Android Screen

With the button “Unlock Android Screen”, you can unlock your Vivo V27 Pro via this part.

Step 3. Select Unlock mode: 100% Remove Screen Lock

When you’re on this page, “100% Remove Screen Lock” can unlock most phone brands’ screens. Because of the different recovery modes of different phone models, selecting the Vivo V27 Pro device brand plays a great role in removing the lock.

Step 4. Now, it’s time to start removing the lock screen

Follow the guide step by step to complete all steps, these steps are important to unlock your Vivo V27 Pro .

Now, no password or pattern to stop you from using your Vivo V27 Pro !

Conclusion

If you know your Google account password, then you can easily unlock your phone after verification. If you don’t know the password, you can use a hard reset to erase all data and settings from your device. Use the Dr.Fone - Screen Unlock (Android) if you don’t want to lose your data. Dr.Fone allows you to unlock your Vivo V27 Pro within minutes with easy-to-follow steps. It works for all old and new Vivo models, and the procedure is the same for every device. You can also use Dr.Fone to recover data, repair android software problems, and fix other issues.