Still Using Pattern Locks with Vivo Y27 5G? Tips, Tricks and Helpful Advice

Still Using Pattern Locks with Vivo Y27 5G? Tips, Tricks and Helpful Advice

Peter Lv13

Still Using Pattern Locks with Vivo Y27 5G? 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 So, why have these easy pattern locks become outdated, and why do people still continue to use them?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.

creating more secure 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.

common pattern locks

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 Vivo Y27 5G 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 !

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Dr.Fone - Screen Unlock (Android)

The Best Tool to Unlock Your Vivo Y27 5G 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.

drfone app

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

drfone android screen unlock

Step 2: Click Unlock Android Screen.

drfone screen unlock android

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

drfone screen unlock brand selection

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

wipe partition cache instructions

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

Your device will be successfully unlocked.

screen unlock succesful

Note that this method wipes all data on the Vivo Y27 5G 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 Unlock Vivo Y27 5G PIN Code/Pattern Lock/Password

I have forgotten the pattern, PIN, or password needed to unlock my Vivo Y27 5G smartphone. What should I do?

If you have a Vivo Y27 5G phone and have forgotten the screen unlock PIN code, pattern lock, or password, you can still access it using some tried and tested tricks and hacks. This article will discuss 5 different ways on how to unlock Vivo Y27 5G smartphone. Some methods might work without erasing your data, while others, like factory resetting, may erase all content from your phone. Regardless of which method you use, you will be able to unlock your phone! So, let’s get started!

1. How to Unlock Vivo Y27 5G With Google Find My Vivo Y27 5G?

A way to unlock the Vivo Y27 5G phone is via Google Find My Device feature. While this method can help unlock your phone, it erases all content from it.

For this method, you need a PC and your Google account details. Here are the steps for it:

Step 1: Open your browser and go to Google Find My Device  on your PC.

BLUETTI NEW LAUNCH AC240

google account verification

Step 2: Log in to the Google account you used to set up your Vivo Y27 5G phone.

Step 3: It will show you 3 options: Play Sound, Secure Device, and Erase Device.

find my device

 And then select “**Erase Device.**”

select erase data

Selecting this option will erase all content from your device, including screen unlock PIN, password, and pattern.

Step 4: Now, you can access your phone without an unlock PIN or pattern and set a new one.

Use this method only if your phone is backed up so you can restore all your data later.

2. How to Unlock Android device Using Lock Remove Tool?

Another foolproof method on how to unlock Android pattern lock is by using a lock removal tool like Dr.Fone - Screen Unlock (Android) .

Safe download safe & secure

Dr.Fone - Screen Unlock is a screen unlock tool that can unlock your Android phone if you forget its screen unlock PIN, password, or pattern in just 5 minutes. It has a simple operation that requires just a few clicks to unlock your phone screen. Plus, this method is reliable, secure, and has a high success rate. However, there’s a possibility that it might not work with older phone models.

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Dr.Fone - Screen Unlock (Android)

Unlock Android PIN Code/Pattern Lock/Password within Minutes

  • Remove all Android screen locks (PIN/pattern/fingerprints/face ID) in minutes.
  • Unlock 20,000+ models of Android phones & tablets.
  • Everybody can handle it without any technical background.
  • Save you from ending up with a locked phone after too many pattern attempts.

4,008,669 people have downloaded it

Here are the steps to unlock Android phone using Dr.Fone - Screen Unlock (Android):

Step 1: Launch Dr.Fone on your PC and select the “Screen Unlock” option from the main page.

Step 2: Connect your phone to your PC with a USB cable. Now click on the “Android” > “Unlock Android Screen” option.

connect device to remove android lock screen

Step 3: A device brand will appear. Select your phone’s brand, i.e., Samsung.

select device model

Step 4: Now, follow the instructions as you see to unlock your Android device.

begin to remove android lock screen

Your phone is now unlocked, and you can access it without entering a PIN, password, or pattern.

android lock screen bypassed

Now, if you don’t remember your Google account details and don’t have access to a PC to use a screen unlock tool, you can unlock Android phone using the conventional way.

How to Unlock Vivo Y27 5G with Google Account?

Almost all Android smartphones, including Vivo Y27 5G , require you to enter your Google account details when setting up your phone for the first time. This includes the email, password, and security question. These details come in handy later on in situations where your phone is lost or stolen or if you’re switching to another phone. However, they can also help with basic issues like unlocking your phone in case you forget your Vivo Y27 5G screen unlock PIN, pattern, or password.

You can unlock your Vivo Y27 5G phone with Google Account in the following two ways:

  • Using Google account details
  • Using Google security question

unlock sony xperia

Using Google Account Details

Almost all Android smartphones, including Vivo Y27 5G , require you to enter your Google account details when setting up your phone for the first time. This account comes in handy later on in situations where your phone is lost or stolen or if you’re switching to another phone. However, it can also help with basic issues like unlocking your phone in case you forget your Vivo Y27 5G screen unlock PIN, pattern, or password. But to use this method successfully, you need to remember the email address bound to the Vivo Y27 5G device and its password.

Here’s how to unlock the Vivo Y27 5G pattern lock without losing data using your Google account:

  • Step 1: Enter the incorrect PIN, pattern, or password 5 times, and click on “Forgot Password” or “Forgot Pattern.”
  • Step 2: The interface will then ask you to enter your Google account details as an alternate option. Enter the Google account details you used when setting up your Vivo Y27 5G phone.
  • Step 3: This will unlock your phone. You can now reset the screen unlock PIN, password, or pattern.

If you don’t remember your Google account details, you can still unlock your Vivo Y27 5G phone using a third-party tool.

Using Security Question

Another way to unlock your Vivo Y27 5G phone using Google is by answering the security question. When we set up our Google account, we usually choose a security question and an answer. This comes in handy if you want to recover your Google account, reset the password, or if you want to unlock your phone’s screen.

For the latter, here are the steps:

  • Step 1: Enter the incorrect PIN or pattern to unlock your screen several times till you see the “Forgot Pattern” or “Forgot Password” option. Click on it.
  • Step 2: Now select the “Answer Security Question” option and type in the answer.
  • Step 3: Click on “Unlock” after which you will be asked if you want to set a new PIN or pattern. Select “Yes.”
  • Step 4: Your Vivo Y27 5G phone will be unlocked, and you can set a new PIN or pattern for your screen.

How to Unlock Vivo Y27 5G by Hard Reset?

Hard resetting your smartphone usually solves everything! Hence, it can also help you unlock your Vivo Y27 5G phone; however, using this method will erase all the data on your phone. So, if you still want to unlock Vivo Y27 5G phone using this method, only do so if you have backed up your device and have no other way to unlock your phone. This includes forgetting your Google account details or not having access to a PC to download and use Dr Fone - Screen Unlock (Android).

Here are the steps for it:

  • Step 1: Power off your Vivo Y27 5G phone.
  • Step 2: Press and hold the power and volume down button until the Sony screen appears.
  • Step 3: The “System Recovery” menu will appear. Use the volume up and down button to scroll to the “Factory Reset” option. Use the power button to select this option.
  • Step 4: Select “Yes” when asked for confirmation.

Your Vivo Y27 5G phone will be hard reset, and all the locks will be removed. When you turn it on again, you will have to set it up like a new phone using your Google account details.

How to Unlock Vivo Y27 5G with Vivo Companion?

If you’ve forgotten the screen lock of your Vivo Y27 5G device, you can use Sony’s official software, Vivo Companion, to unlock your device. Vivo Companion is a reliable method that can help you regain access to your Vivo without data loss. Here’s how to unlock your Vivo Y27 5G using Vivo Companion:

Step 1: Install and launch Vivo Y27 5G Companion from the official website and click “Support Zone.” Move to the “Phone/Tablet Software Update” option on the next screen and tap “Start.”

press the start button

Step 2: Now, plug in your laptop to power, as the process will take some time, and choose “repair my phone/tablet.” Here, agree to the warning that you will lose your data and click “Next” to proceed.

tap repair my phone tablet

Step 3: Allow the program to download files to prepare for the update process and choose your Vivo Y27 5G model. Click “Next” and connect your Vivo Y27 5G to the PC. Ensure that the phone is turned off, and press and hold the “Volume Down” button when connecting the cable to the phone.

preparing the computer

Step 4: Once correctly connected to the PC, the program will download the necessary software and upload it to your device. After completing the process, you can unplug the Vivo Y27 5G device and turn it on.

updating the xiaomi device

How to Remove Operator Lock on Vivo Y27 5G ?

An operator lock, also called a carrier lock, constitutes a limitation imposed on a mobile phone by a network provider. This measure is implemented to guarantee that the Vivo Y27 5G device exclusively functions with the services provided by that specific carrier. If you wish to remove the operator lock from your Vivo Y27 5G device, you’ll need to follow specific steps and meet certain criteria. Here’s how to remove the operator lock on a Vivo Y27 5G :

Step 1: Begin by checking whether your device can be unlocked or not from its network carrier restrictions. To do that, you need to dial the code “*#*#7378423#*#*” on your device, tap “Service Info” and select “SIM Lock.”

dial the provided number

Step 2: Carefully check the information provided on the screen. If there is “X” before the “Network” option and the number in front of it is larger than 0, it means your device can be unlocked. If the number in front of “Network” is 0, your device can’t be unlocked as it is hard-locked.

check the network status

Step 3: The next step involves getting your device’s IMEI number. To accomplish this task, simply input “*#06#” on your device. Once you have the IMEI number, use a reliable service from the internet to the unlocking code. Insert the SIM card of another network and provide the code you gained to unlock your Vivo Y27 5G device.

enter the sim unlock code

Bonus Tip: How to Unlock Bootloader?

Unlocking the bootloader on your Android device provides significant advantages. These actions encompass obtaining root access, installing custom ROMs, configuring custom recoveries, and carrying out advanced procedures. Here’s an essential guide on unlocking the bootloader of your Sony device while keeping all precautions in mind:

Step 1: To start with the process, verify the bootloader status for your Sony smartphone. On opening the “Dialer” app, dial the number “*#*#7378423#*#*“ and access the “Rooting Status” option within the “Service Provider” settings.

Step 2: If the bootloader status displays “Yes,” ensure that the Sony USB drivers and ADB tools are installed on your computer. Enable “USB Debugging” and “OEM Unlocking” on your smartphone and switch it off.

Step 3: Connect the Vivo Y27 5G smartphone with a USB cable and press the “Power + Volume Up” keys for a few seconds. Open the Windows computer and access the “Devices and Printers” directory. Right-click on the “fastboot driver” file, select “Update,” and select the location of the “android_winbus.inf” file. Verify the fastboot connectivity through the CMD command.

Step 4: Open the official “Sony Unlocking Site” and add in the IMEI number. On acknowledging, use the commands as follows: adb reboot bootloader

Unlock the bootloader with the following command: fastboot oem unlock 0x<insert your unlock code

Verify the bootloader is unlocked and use the command to reboot the system; if not done automatically: fastboot reboot

Conclusion

Forgetting your Vivo Y27 5G screen unlock password, PIN, or pattern is quite common. For such instances, there are several methods that you can use to unlock your screen, 5 of which we have discussed in this article.

If you’re looking for ways that are time-effective and reliable, you can use your Google account or other ways to unlock Vivo Y27 5G and set a new screen lock. However, with these methods, you can lose your data, so we only recommend using them if your device is backed up.

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.

using a phone at work

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.

oem unlock option greyed out

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.

dr.fone homepage interface

  • Step 2: Specify the Vivo Y27 5G device type for screen lock removal.

select device type interface

  • Step 3: Select Unlock Android Screen to proceed.

dr.fone screen unlock tools

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

dr.fone screen unlock 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.

screen lock successfully removed

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.

software information settings

  • 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.

enable oem unlock developer option

  • 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.

turn on oem unlock

  • 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.

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.
![turn off auto update system](https://images.wondershare.com/drfone/article/2024/01/oem-unlock-missing-12.jpg)
  • Step 9: Go to Settings > Software update, then turn off Auto download over Wi-Fi.

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.

android factory data reset

  • 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!


  • Title: Still Using Pattern Locks with Vivo Y27 5G? Tips, Tricks and Helpful Advice
  • Author: Peter
  • Created at : 2024-07-16 11:51:40
  • Updated at : 2024-07-17 11:51:40
  • Link: https://android-unlock.techidaily.com/still-using-pattern-locks-with-vivo-y27-5g-tips-tricks-and-helpful-advice-by-drfone-android/
  • License: This work is licensed under CC BY-NC-SA 4.0.