In 2024, How To Fix OEM Unlock Missing on Vivo Y27 5G?

How To Fix OEM Unlock Missing on Vivo Y27 5G?

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 Y27 5G 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 Y27 5G 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!

Best Ways on How to Unlock/Bypass/Swipe/Remove Vivo Y27 5G Fingerprint Lock

If you cannot remember your pin, pattern or password to access your Android device, this content will introduce you to the most effective method to handle the fingerprint lock, unlocking, bypassing and swiping in Android based gadgets. Your lock screen appears on your phone immediately after you turn your device on and it is there to save your privacy, data also to make your screen user-friendly and more functional. The additional material that definitely helps you to solve your limited access issue in your Android phone can be viewed here.

The Best Way to Unlock, Bypass, Swipe and Remove Android Fingerprint Lock

Dr.Fone - Screen Unlock (Android) is a highly straightforward, fast and handy phone unlocking software . With that particular application, you will be able to solve the lock screen removal issue in 5 minutes. It is really powerful as it can handle 4 types of screen locks such as password, fingerprints, pin and pattern. All you data will not be touched by the app and you do not have to possess some knowledge in tech field. So far, Dr.Fone - Android Lock Screen Removal is available for Samsung Galaxy S, Note and Tab Series and LG series for unlocking without any data losing.Temporarily, this tool can’t mantain all the data when unlocking the screen from other mobile devices including Onepus, Xiaomi, iPhone. However really soon, the app will be available for the users of other operating systems. Before you purchase it, you are free to try it. You can acquire the app for 49.95 USD. You will be getting advantage using this app as comes with free lifetime update, also you will receive the keycode in minutes. Comments and feedback on Dr.Fone - Android Lock Screen Removal can be viewed here. You definitely will be interested as the app has 5 stars rating and tons of positive feedback.

Dr.Fone - Screen Unlock (Android)

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.

4,230,631 people have downloaded it

Follow these steps to get your lock screen issue solved:

Step 1. Install Dr.Fone, then click “Screen Unlock”.

Step 2. Connect your Android phone and then select the Vivo Y27 5G device mode on the list. If it’s not on the list, select “I can’t find my device model from the list above”.

Step 3. Type the download mode on your Android gadget.

Step 4. Have recovery package downloaded.

Step 5. Remove Android lock screen without losing any data.This process will take some times.

Remove Android Screen Lock

Best 10 Fingerprint Lock Apps for Android Gadgets

The lock screen app is a navigation screen that should be user friendly and allow you to jump quickly to those features that you actively use. For those, who want to make their smartphone screens much more functional and fun, we have prepared a list of best 10 Android Fingerprint Lock Apps and Widgets. The list that will be describing the apps will not be in the form of A Ranking or Top 10. The aim of our list is just to share with you those apps which are really good at handling the functions that we need from our gadgets.

1st - Hi Locker

This fingerprint lock for android devices comes with a 3 modes of lock screen: Classic, iOS and Lollipop. Also, it has a separate screen dedicated to your calendar. Cyanogen Mod Style quick launcher is the main feature of Hi Locker. The secondary characteristics include custom greetings, various fonts, automatic wallpaper changes and additional customizations using an arrow key.

2nd - ICE Unlock Fingerprint Scanner

This app is a real fingerprint lock for Android that features a true biometric lock screen solution. ICE Unlock is powered by ONYX that allows you to take a picture of your fingerprint using your standard phone camera. Now, it supports x86 CPU architectures and MIPS. Additional notable characteristics include auto-capturing and adjustment of ellipse size to achieve optimal focal length of camera among others.

3rd - Finger Scanner

One of many free to download Android Fingerprint Lock app is Finger Scanner. It offers 2 work modes: double protection and single. You can unlock by scanning or pin, also, it features different scanning times. Finger Scanner is highly customizable and you can use background and colors that you prefer. It immediately will turn your screen off whenever you cover the camera lens.

4th - GO Locker - Theme & Wallpaper

The total downloads of Go – Locker Theme & Wallpaper is close to 1.5 million which has made this app number one with close to 4.5 stars rating on googleplay.com. This real fingerprint lock for android allows you to read incoming messages on your screen, user friendly icons will quickly take you to systems and settings and it has a huge amount of unlocking styles such as Android, iPhone and those that you have never imagined. It successfully handles over 8,000 models of various Android powered gadgets.

5th - Locker Master- Do It Yourself (DIY) Lock Screen

Whether you prefer having simple or complex, solid or multi colored lock screens, Locker Master- DIY Lock Screen offers you tons of options to design the lock screen that will match to your desires. Swipe gestures options and passcode patterns are designed like never before. Be informed on incoming messages or missed calls on your lock screen, share your own lock screen style or download from a huge amount of themes which are being shared daily, worldwide. Locker Master- DIY Lock Screen is a free to download fingerprint lock app as many others that we are listing here.

6th – Start

With Start , your lock screen becomes into your Start screen. Right from the lock screen, you will have a quick access to the most of apps that you actively use. You can set the security level, enjoy simple but smart navigation characteristics noticeably faster. It is a real fingerprint lock for Android devices which can be your one-stop lock screen application.

7th – Solo Locker (DIY Locker)

This particular app is considered as the world’s first DIY that can lock your phone using a photo too. It is really smooth in functioning, lite and always ready to put your privacy onto higher level. Password interface is easily customizable and application shortcuts make your smartphone very easy to use. Solo Locker (DIY) Android fingerprint lock must be immediately downloaded by the people who would like to have an app that offers nearly uncountable wallpapers and design settings.

Out of all the apps that we have listed here, Widget Locker is the one that is not free to download. It will cost you 2, 99 United States Dollars and it has really attractive features such as a control of the mood and layouts of your smartphone. “Your privacy is the app’s number one priority” (that is what the designers of Widget Locker state). Drag and drop options, selectable sliders, Slide to Launch a Camera or Slide to call My Mom options and easy resizing of widgets are some of the really efficient features of this fingerprint lock app for android devices.

9th - M Locker - KKM Marshmallow 6.0

This real fingerprint lock app for android is known to the users as A Top Android 6.0 Lock application with numerous upgraded and developed features such as: a multi-functional lock screen, easy to navigate and simply comprehensive look. M Locker - KKM Marshmallow 6.0 includes a torch on your locker, easy but powerful swiping options, your music can be controlled from the locker and provides the snapshots of intruders who enters the wrong passcode continuously or will be placing his fingerprint for several times to log into your device.

10th - Fireflies Lock Screen

With over 300,000 downloads and the rate of 4.3 stars, Fireflies Lock Screen more than deserves to be downloaded and installed if you own one of those smartphones that comes with a fingerprint reader. In this app, you can change, resize, command and set almost everything the way you wish. Swipe to jump to a particular app or swipe to remove the notifications. Provides highest level of functionality and you have wide variety of options on locking your device or apps/widgets/folders. The most of comments given to this particular app describe it as “Best of its kind” and this characteristic makes it to be a real fingerprint lock for android devices.

The unlock method that was described in the beginning of our content, is the most functional approach to handle a lock screen problem successfully. In Non-Ranking and No-Comparisons form, we have presented you the list of best 10 fingerprint lock apps for Android devices. Each user is different and that is why there are various applications for your gadget. Try them out and find the one that suits you best!

Unlocking the Power of Smart Lock: A Beginner’s Guide for Vivo Y27 5G Users

Google constantly comes up with features to simplify the way users interact and complete tasks on the Android platform. One of the most important features that techies loved to debate about was the Smart Lock Android, a secure password manager functioning in sync with a Google account on the Android phone.

Part 1: What is Android Smart Lock?

Android Lollipop added a feature called Smart Lock, and the feature was devised as a smart tool to prevent the Android phone from locking once it was initially unlocked. In other words, the feature overrides an Android phone’s Lock Screen feature, thereby saving users the need to enter passwords every time the Vivo Y27 5G device locks.

If you’re at home, it’s likely your android phone is locked out if you haven’t accessed at for some time. Smart Locks solves the problem in many ways. It allows you to allocate trusted places. Once you within range of the trusted places, your phone won’t lock. Trusted devices come next. Smart Lock is assigned to Bluetooth and Android NFC unlock devices.

Finally, trusted face unlocking is the ultimate face recognition system that unlocks your Android device as soon as you look at it across the front-facing camera. A face unlock first introduced with Android Jelly Bean and has been significantly improved in later versions.

Turning On Smart Lock

The feature is enabled by first accessing settings. For example, in a Samsung Galaxy S6:

Tap on Settings, which is the gear symbol.

• Click on Personal and tap on Security.
• Go to Advanced and tap on Trust agents and make sure Smart Lock is turned on.

• Under Screen Security tap Smart Lock.
• Here, you need to enter your Screen Lock. If you haven’t done so, set up a password and PIN by following the on-screen prompts. The screen Lock is needed every time you have to change the Smart Lock settings.

Within Smart Lock, there are three options for setting the system. You can set up trusted devices, trusted face, and trusted places individually, combining two or all three at the same time. You can choose just one trusted face, but you have the option to set up as many trusted devices and trusted places as needed.

Part 2: Turn On Smart Lock For Android with Trusted Devices

You can decide on a trusted device to be paired with Smart Lock Android.

For example, you can set up a Smart Lock for Bluetooth in your Android Bluetooth settings. It can also be done for Android NFC unlock devices. Examples include the Bluetooth system in your car, NFC unlocks, android sticker on the car’s phone dock, or Bluetooth in your watch.

• Go to Settings.
• Tap on Security and then Smart Lock.
• Existing paired options are listed under Trusted Devices.
• Initially, trusted devices will show None.

Tap on Add Trusted Devices.

The next screen is the Choose Device Type.

Since you have already paired Bluetooth, it will ask you to choose the Vivo Y27 5G device from the list.

• As an example, let’s take the case of LG HBS800. It may show Not connected until you add it.
• It will show up under Trusted devices in the Smart Lock menu.
• When you turn the added device on, Smart Lock now unlocks the Android mobile.

Similarly, other Bluetooth and NFC unlock android supported gadgets can be added under the list of Trusted Devices.

Part 3: Turn On Smart Lock For Android With Trusted Locations

You can also add locations or addresses to Smart Lock Trusted Locations, and the phone unlocks automatically as soon as you arrive at the desired location. For example, you can set up your home or work address under Trusted Locations.

Check current settings first.

On a new Android phone, visit Settings>Personal.

Then Lock Screen and Security.

Then Secure Lock Settings.

Tap Smart Lock.

Tap on Trusted Places.

Tap on Add Trusted Places

• Initiate the Google Maps app on the Android phone. Make sure the Internet and GPS are on.
• Pick a place.

• Click on Settings.
• Click on Edit home or work. You can now add or edit the required addresses.
• As an example, click on the Enter work address.
• You now have the option to type in the address or use the address listed on Google Maps as the required work address.

• A successful addition is listed and can be edited under the Edit work address.
• Close the Google Maps app.
• The work address is automatically propagated and configured with Smart Lock settings.
• Go back to Settings> Security> Smart Lock> Trusted Places.
• The work address you added is now listed under Work.

• However, it is not yet configured as a Smart Lock option. Tap the location once, and it is enabled.
• The switch along the address to the right turns blue, indicating it is enabled.
• The work address is now listed under Trusted places for Work.

• The phone is now configured for the work address and will unlock whenever you are at the location.
• Since it works on Google Maps, the feature works through an Internet connection.

Part 4: Turn On Smart Lock For Android With Trusted Face

The feature recognizes your face and then unlocks the Vivo Y27 5G device. Once you set up the Vivo Y27 5G device to recognize your face as a trusted face, it will unlock the Vivo Y27 5G device as soon as it recognizes you.

PRECAUTION: At best, this can be the first level of security, as one who resembles you to some extent can unlock the Vivo Y27 5G device. Photographs are not stored in the system. The device does hold necessary data to recognize your face, and the security level is determined by how good the Vivo Y27 5G device is configured. The data is not accessed by any app or loaded onto a Google server for backup.

Setting Up Trusted Face

• Go to Smart Lock and tap Trusted Face.
• Tap on Setup. Follow on-screen instructions.

The device begins to gather data about your face. The trusted face icon appears. As a backup, in case Smart Lock does not recognize your face, use the manual system by applying the PIN or password to unlock the Vivo Y27 5G device.

In case Trusted Face is not required, tap on reset Trusted Face appearing under the Trusted Face menu. Tap on Reset to reset the option.

How To Improve Facial Recognition In Your Bluetooth and Android NFC Unlock Devices

• If you feel facial recognition is not up to the mark, go to Smart Lock and tap on a Trusted face.
• Tap on Improve face matching.
• Tap on Next and follow instructions on the screen to complete the task.

Smart Lock Android is a great feature and is only going to improve on time. With added security measures being introduced by Google for Bluetooth and NFC unlock android devices, including configuration to Google maps and Gmail, the feature may be one of the most important features to overcome constant blocking of devices even in protected places.

Android Unlock