How To Fix OEM Unlock Missing on Vivo Y100 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 Y100 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.

Click here

## 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 Y100 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!

How to Remove a Previously Synced Google Account from Your Vivo Y100 5G

The setting up process of a new Android phone requires you to add a Google account that saves all activities and data of the phone like search history, details of online shipping, play store purchases, and more. Once the account is set, it cannot be changed till you delete everything from your phone. Moreover, with the introduction of FRP lock, even a factory reset will not remove the synced Google account.

So, now what if you want to sell your phone or have purchased a second-hand device that is still associated with the previous owner’s Google account? No, worries as there are workarounds available that will help you remove your previously synced google account from your Android device.

Keep reading to know more in detail about how to bypass previously synced google accounts.

Heres a full guide on how to remove google account from android, click to know more!

Part 1: Remove Previously Synced Google Account from Android Phone Without Phone Reset

In this part, we will discuss the methods that can be used for removing the previously synced account from your Android phone without a phone reset.

Method 1: Removing Google Account using the Android Settings Menu

If you just plan to reset your phone, maybe because of the lag caused by the phone cache, and you know the inconvenience of Google FRP as a protection mechanism, then you can remove Google FRP through the Settings menu.

The steps for this method are listed below.

• Step 1: On your Android phone go to the Settings option and choose Accounts & Backup.
• Step 2: Select the Manage Accounts option now and the list of the associated Google Devices will appear.
• Step 3: Choose and click on the Google Account that you want to remove and a pop-up message will appear to inform you that all the account data will be deleted with this action.

To confirm the removal of the account, click on the Remove account button.

Method 2: Remove the Google account from the Android phone using the computer

There is another method using which you can remotely remove the Google account associated with your phone. The steps for the method are listed below.

• Step 1: Using another device or a PC, sign in to your Google account that was previously synced on this device and choose the Security option.
• Step 2: Next scroll down and then tap on the Your devices option and choose to Manage devices.
• Step 3: You will now see the list of devices linked to your Google account. Next, tap on Find a lost or stolen phone and then select the Remove option present next to Account access.
• Step 4: You will be again asked if you want to delete the account. Select the Remove option.
• Step 5: The account will be removed successfully and the confirmation message will appear.

Note: This method will actually sign out you from the Google account and will not delete it permanently. To again get access to the account, a notification will appear on your phone to enter the password.

Part 2: How to Disable Factory Reset Protection to Bypass Google Account Verification After Factory Reset

The Factory Reset Protection (FRP) is a security feature for the Android device that allows factory reset only after the associated Google ID and password are entered correctly. With multiple accounts and passwords to remember there is quite a possibility that you may forget your Android phone Google account details and here the need to bypass Google account verification arises.

Though there are multiple tools available we recommend Dr. Fone - Screen Unlock (Android) as the best and the most reliable option. Using this excellent Windows and Mac-based software, FRP lock on all popular Android devices including Samsung, LG, HTC, and others. The tool is simple to use and requires no technology. There is also an option where you can unlock your device if you do not know the OS version.

Dr.Fone - Screen Unlock (Android)

Get into Locked Phones within Minutes

• 4 screen lock types are available: pattern, PIN, password & fingerprints.
• Easily remove the lock screen; No need to root your device.
• Everybody can handle it without any technical background.
• Provide specific removal solutions to promise good success rate

4,008,669 people have downloaded it

Steps to remove FRP lock using Dr. Fone-Screen Unlock (Android)

Step 1: Download, install and run the software on your system, and from the main interface choose the Screen Unlock option. Make sure that your phone is connected to WiFi.

Step 2: Next, choose Unlock Android Screen/FRP and then select the Remove Google FRP Lock option.

Step 3: Next, choose the OS version of your device from the given options, and then using a USB cable, connect your phone to your system.

Step 4: After the Vivo Y100 5G device is connected, the Vivo Y100 5G device information will appear on the software for you to confirm and the notification for the same will be sent to your Android phone.

Step 5: Now follow the notifications for removing the FRP lock and in the browser enter drfonetoolkit.com.

Step 6: Next, click on the Android 6/9/10 button, choose Open Settings and select the PIN option to set a PIN to be used in the further steps.

Step 7: Keep following the steps as they appear till you reach the Google Account Sign-In page. Here click on the Skip option that will successfully remove and bypass the Google Account.

The above given are the brief steps for the FRP bypass process. To learn about the entire process in detail, check Dr.Fone-Screen Unlock (Android) guide .

Part 3: Hire a Remote FRP Removal Service to Bypass ZTE/Motorola After Factory Reset

To bypass the FRP lock on your ZTE, Motorola, and Samsung device, there is also an online service called UnlockJunky.com that claims to remove the FRP lock and previously linked account on your Android device within 5-15 minutes. This is a paid service that also claims that if they are unable to remove the lock, they will refund the amount to their customers.

So, if you cannot sign in with a Google account that was previously synced, you can give this, method a try.

Step 1: Open the official service page Unlockjunky on your browser.

Step 2: Next, choose the Vivo Y100 5G device’s brand, model, and unlock type from their respective drop-down menus. Click on Unlock Now button after entering the details.

Step 3: Now you need to initiate the order by providing the details asked and completing the payment.

Step 4: Next, the software needs to be downloaded and installed on your system, and using a USB cable, connect your phone to your computer.

Step 5: Connect with one of the support provider members through the live chat and they will help you remove the FRP lock on your Android phone.

With the steps above, you can remove the account previously synced on this device.

Limitations of using the Unlockjunky method:

• This is a paid service.
• Works only with Motorola, ZTE, and Samsung devices.
• There is no surety that the service will work for removing the FRP lock on your devices.
• If you have to remove the FRP lock from multiple devices, a separate payment for each device has to be done.

Conclusion

Above we have listed several ways to remove a previously synced Google account on your Android device. The best of all the listed solutions is Dr. Fone - Screen Unlock (Android) as it supports bypassing FRP lock on multiple Android devices in a hassle-free manner. Once the license is purchased, you can unlock as many numbers of devices as you want without any worries.

How to Unlock Vivo Y100 5G Bootloader Easily

Do you want to unleash the true power of your smart phone? Do you wish to have complete control over your smart phone? If yes, well, here is the answer; unlock bootloader. For people who are already into the tricks of hacking and rooting smart phones, might be aware of this. But still, there are exciting new developments. Bootloader is a code existing in all operating systems which usually comes pre-locked. So, it is important, if you wish to have a custom ROM installed on the Vivo Y100 5G device, or if you wish to have other controls like installing applications which are incompatible, to have the Vivo Y100 5G device bootloader unlocked. But going through with the process of unlocking bootloader and rooting the Vivo Y100 5G device will not help and rather might break the warranty of the Vivo Y100 5G device. This definitely calls for a diligent watch on how to unlock HTC bootloader. So, it is imperative as a user to know the process of HTC bootloader unlock. This article serves you with some ways you could follow to unleash the true power of your HTC device. Here’s how you can do it.

Part 1: Why We Want to Unlock HTC Bootloader

For people with HTC device, unlocking bootloader would mean complete authority over the smart phone and you have all the power to control the HTC device by all means. Since, bootloader usually comes pre-locked, unlocking the bootloader is the initial step if you would like to have a custom ROM installed in your device. There are various advantages of HTC unlock starting from gaining rights of control to installing latest custom ROMs in the phone and installing incompatible applications. Moreover, HTC unlock bootloader could boost the Vivo Y100 5G device speed and battery life and also help in making complete backups of the Vivo Y100 5G device. You could also have controls to remove bloatware from the HTC device. So, all in all, while there could be certain side effects, if not done properly, there are various advantages of unlocking HTC bootloader. If the process is carried out properly, the Android device could be the perfect smart phone you would like to have.

Part 2: How to Unlock Vivo Y100 5G Bootloader

Vivo Y100 5G is the flagship device of HTC by all means. With a world of features and offerings, Vivo Y100 5G truly is a beast. While the phone is very powerful without any modifications, the true potential is yet to be seen and that can only be done if the bootloader is unlocked. So, to have a complete control over the Vivo Y100 5G device, it is important to unlock the bootloader and the process has to be carried out diligently. One of the initial things that needs to be ensured is that the Vivo Y100 5G device is fully charged or atleast 80% mark. Make sure you have the fastboot drivers for the Vivo Y100 5G device configured on the windows machine and the Android SDK. Here are some of the steps which can be followed to unlock bootloader.

Step 1: It is always very important to keep the phone data backed up and more so when you are planning to unlock the bootloader.

As one of the initial measures, backup the Vivo Y100 5G device completely as bootloader unlocking process will wipe all the data off. So, backup all the data like photos, contacts, multimedia files, documents, etc.

Step 2: Go to htcdev.com/bootloader. Ensure that you are registered with HTC and once the sign up is done, log in to HTC dev.

Now, ensure that HTC Sync Manager is installed on the PC.

Step 3: From the bootloader page, select your device using the drop down option as shown in the picture below.

After selecting the Vivo Y100 5G device, click on “Begin Unlock Bootloader”, and then confirm all the dialogue boxes which come your way on screen.

Step 4: Now, you will be presented with four steps to put the Vivo Y100 5G device in bootloader mode. Disconnect the Vivo Y100 5G device from the PC and turn the Vivo Y100 5G device off completely. Press the volume down button along with the power button to switch the Vivo Y100 5G device on in bootloader mode.

Click here


Step 5: Use the volume keys of the Vivo Y100 5G device to select Fastboot option along with pressing power button to confirm, after the Vivo Y100 5G device is in bootloader mode. Now, connect the Vivo Y100 5G device to the computer using a USB cable.

Step 6: Go to Fastboot folder on the PC and holding down the shift key, click on any empty space followed by a click on “Open command window here”.

Step 7: In the command prompt window, type “fastboot devices” and press enter. Vivo Y100 5G will show up in the command prompt.

Note: The drivers have to be installed correctly to see the Vivo Y100 5G device in the command prompt. So, if the Vivo Y100 5G device does not show up, reinstall HTC Sync Manager and try again after restarting the computer.

Step 8: On HTC Dev’s website third page, click on “proceed to Step 9”. Follow the steps listed and then click on submit. The unlock token code for the Vivo Y100 5G device will be mailed by HTC. Download the token and name it “Unlock_code.bin” and place the token in the fastboot folder.

Step 9: Now, in the command prompt window, type the following:

fastboot flash unlocktoken Unlock_code.bin

Step 10: On the Vivo Y100 5G , one message will appear asking if you want to unlock the Vivo Y100 5G device bootloader.

Use volume keys to select and power button to confirm. Once this is done, the Vivo Y100 5G device will restart once and it’s done. The device is now bootloader unlocked.