In 2024, 5 Solutions For Vivo Y78t Unlock Without Password

In 2024, 5 Solutions For Vivo Y78t Unlock Without Password

Peter Lv12

5 Solutions For Vivo Y78t 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 Y78t 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 Y78t 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 Y78t without your Google account.

Here is a video for you to learn how to unlock Vivo Y78t without password:

Part 1: Lock System About Vivo Y78t

1: Lock Types

Before we move towards the Vivo Y78t pattern unlock, let’s talk about its lock types and security system. Vivo Y78t 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 Y78t 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 Y78t with its privacy password settings.

2: How to Set Them up?

Follow these steps to set up any type of lock on your Vivo Y78t .

  • 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 Y78t 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 Y78t Without Password or Pattern

1: Google Find My Device

You can use the Google Find My Device for your Vivo Y78t 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 Y78t with Find My Device.

google find my device web home page

  • 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 Y78t 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.

Vivo Y78t  lock screen

  • 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 Y78t screen unlock without PC. You will see various questions if your Google account is linked with the Vivo Y78t 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 Y78t with security questions.

Vivo Y78t  forgot pattern interface

  • 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 Y78t pattern unlock without a PC through a hard reset.

  • Switch off your Vivo Y78t with the power button.

power key

  • 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.

volume down and power key

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

select device language

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

recovery mode menu

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

hard reset confirmation

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 Y78t 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 Y78t 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 Y78t with Dr.Fone – Screen Unlock.

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Dr.Fone - Screen Unlock (Android)

The Best Tool to Unlock Vivo Y78t 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 Y78t via this part.

unlock android screen

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 Y78t device brand plays a great role in removing the lock.

select brands

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 Y78t .

oppo logo

Now, no password or pattern to stop you from using your Vivo Y78t !

unlock successfully

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 Y78t 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.

How to Unlock Vivo Y78t PIN Code/Pattern Lock/Password

I have forgotten the pattern, PIN, or password needed to unlock my Vivo Y78t smartphone. What should I do?

If you have a Vivo Y78t 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 Y78t 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 Y78t With Google Find My Vivo Y78t?

A way to unlock the Vivo Y78t 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.

google account verification

Step 2: Log in to the Google account you used to set up your Vivo Y78t 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 downloadsafe & 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 Y78t with Google Account?

Almost all Android smartphones, including Vivo Y78t , 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 Y78t screen unlock PIN, pattern, or password.

You can unlock your Vivo Y78t 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 Y78t , 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 Y78t screen unlock PIN, pattern, or password. But to use this method successfully, you need to remember the email address bound to the Vivo Y78t device and its password.

Here’s how to unlock the Vivo Y78t 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 Y78t 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 Y78t phone using a third-party tool.

Using Security Question

Another way to unlock your Vivo Y78t 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 Y78t phone will be unlocked, and you can set a new PIN or pattern for your screen.

How to Unlock Vivo Y78t by Hard Reset?

Hard resetting your smartphone usually solves everything! Hence, it can also help you unlock your Vivo Y78t phone; however, using this method will erase all the data on your phone. So, if you still want to unlock Vivo Y78t 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 Y78t 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 Y78t 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 Y78t with Vivo Companion?

If you’ve forgotten the screen lock of your Vivo Y78t 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 Y78t using Vivo Companion:

Step 1: Install and launch Vivo Y78t 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 Y78t model. Click “Next” and connect your Vivo Y78t 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 Y78t device and turn it on.

updating the xiaomi device

How to Remove Operator Lock on Vivo Y78t ?

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 Y78t device exclusively functions with the services provided by that specific carrier. If you wish to remove the operator lock from your Vivo Y78t device, you’ll need to follow specific steps and meet certain criteria. Here’s how to remove the operator lock on a Vivo Y78t :

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 Y78t 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 Y78t 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 Y78t 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 Y78t 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 Y78t?

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 Y78t 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 Y78t 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

  • 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: In 2024, 5 Solutions For Vivo Y78t Unlock Without Password
  • Author: Peter
  • Created at : 2024-04-03 17:20:47
  • Updated at : 2024-04-05 15:44:56
  • Link: https://android-unlock.techidaily.com/in-2024-5-solutions-for-vivo-y78t-unlock-without-password-by-drfone-android/
  • License: This work is licensed under CC BY-NC-SA 4.0.