How To Fix OEM Unlock Missing on Vivo S18e?

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 S18e 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 S18e 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!

Unlocking the Power of Smart Lock: A Beginner’s Guide for Vivo S18e 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 S18e 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.

Click here


• • 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 S18e 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.

Click here

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

The feature recognizes your face and then unlocks the Vivo S18e device. Once you set up the Vivo S18e device to recognize your face as a trusted face, it will unlock the Vivo S18e 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 S18e 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 S18e 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 S18e 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.

Video on How to Remove Android Lock Screen Without Data Loss

How To Unlock Vivo S18e Phone Without Password?

Has your Android smartphone been locked, and are you having trouble unlocking it now because you have forgotten phone password? Looking for methods to remove the password from your Android phone without doing a factory reset?

If the answer is “YES,” you’ve come to the correct spot.

Many people, including you, have had similar issues and wish to know how to unlock an Android phone without a password.

As a result, we have created some of the greatest guidelines or, you might say, top ways that may assist you in unlocking Android phones today, simply for you and countless other Android users.

Part 1: Unlock Your Locked Screen Without Password By 6 Efficient Ways

1. By your Google account

You can use your Google Account to unlock the Android phone password if, after several tries, you are still unable to do so without doing a factory reset.

You need to log into the Google account that is associated with the Vivo S18e device, then do the following:

• The unlock pattern may only be used five times before a notification telling you to try again in 30 seconds appears.
• “Forgot pattern” will show up at the bottom of the screen.

• You must enter the Gmail account that is associated with the Vivo S18e device here before selecting “Next.”

• That’s it; from this point forward, you may enter any new PIN or pattern that you can recall to unlock your smartphone.

2. Google Find My Device

Using your Google account is a superb method for finding the Vivo S18e device when lost or stolen.

In addition, it may be used to lock or ring your smartphone. You may have noticed that there are three options available when using this feature: “Ring,” “Lock,” and “Erase.”

To bypass the Android lock screen, all you need to do is sign into the Vivo S18e device’s associated Google account and then follow these steps:

• On any Android device or a computer, go to <www.google.com/android/find> and sign in using your Google account. Choose the Android smartphone you wish to unlock after that.
• After choosing the Vivo S18e device, select one of the three options, “lock,” from the list.
• There will be a new pop-up window that you can use to change the Vivo S18e device password. Additionally, you can choose to add a phone number or recovery email.
• Confirm it immediately, then input the password you just established on your locked device.

Many Samsung customers have this issue, which prevents them from using their devices. Try using the “Find My Mobile” feature on your mobile if you wish to unlock it if you’re a Samsung user. It would be helpful if you had a Samsung or Android model account.

After that, use Find My Device to unlock your Android phone without losing any data by following the instructions below:

• Sign in with your Samsung account at findmymobile.samsung.com.
• Choose “Lock my screen” from the menu on the left, type a new PIN in the box given, and then click “LOCK.”

Your smartphone will be unlocked, and the password will be changed to the new one after a brief delay.

3. Use ADB (Android Debug Bridge)

Without a factory reset, Android phone passwords may also be unlocked using the Android Debug Bridge (ADB).

• You must first download ADB to your computer. Visit the Android developer’s website at https://developer.android.com/studio/command-line/adb.html to do this.
• Launch the installer after that to begin downloading crucial software for your machine.

• Here, you must use a USB cable to connect your Vivo S18e to the computer
• This will activate the developer option on your smartphone if you navigate to Settings > About Phone > and choose the “Build Number” option seven times.
• After that, activate USB debugging by going to Settings > Developer Options.

• Launch the command prompt in the ADB installation directory after your device is connected to the system.
• Press enter after typing “ADB shell rm /data/system/gesture.key” into the command line.

• Finally, just restart your smartphone and use it as normal.

4. Hard reset (data loss)

Each brand has a unique method for hard resetting a locked Android device. The methods to factory reset locked Android devices from Samsung, LG, HTC, Sony, and Huawei are compiled here.

When your phone is locked, you may access the recovery menu of your phone using its physical keys and choose to hard reset the Vivo S18e device. Here’s how to restore a locked phone to factory settings.

• Use the buttons to see the recovery menu.
• Press and hold the Volume Up and Side buttons simultaneously until you see the brand logo on the screen for Android devices without a Power/Bixby/Home button.
• Press and hold the Volume Up, Bixby, and Power buttons all at once if your smartphone has a Power button. Releasing them before a logo arises is advised.
• Use the Volume Down key to highlight Wipe data/factory reset when the Android system recovery option displays, then hit the Power/Bixby key to choose it.
• Allow a few seconds for the factory reset procedure to finish after selecting Yes, or Factory data reset. The phone will reboot once you pick the Reboot system. Now you may configure it as if it were a brand-new gadget.

5. Unlock from Forgot Pattern (android 4.4 or lower)

This is another choice that might assist you in unlocking your phone without a factory reset or password. You may have observed that when pattern lock was enabled on your device, a security PIN question was also prompted at that time.

Therefore, you have the choice to Backup PIN, which might assist you in unlocking your smartphone, if you are unable to unlock it. To do it, take the following actions:

• Click on Android pattern lock.
• You’ll see a notification telling you to try again in 30 seconds after failing many times.
• The “Backup PIN” option will be there; choose it.
• Put the backup PIN and OK here.
• At last, you may unlock your cellphone by entering the backup PIN.

6. Boot into safe mode

Here’s how you can boot into safe mode.

• Hit the power button on your phone.
• Press and hold the volume down button on your phone as the animation begins. Hold it down until the animation is finished and your phone enters safe mode.
• “Safe mode” will be shown at the bottom of your screen.
• Out of safe mode
• Switch off your phone.
• Press the Power button on your phone for around 30 seconds, or until the Vivo S18e device restarts.
• You will see that after entering and booting into the safe mode, the lock option will not be visible.
• Then you will also see the option to turn off boot.
• You can get rid of the locked phone by proceeding with that option.

Part 2: Easy Tool To Unlock Android Phone Without Password

If you forget the lock code, you can simply unlock your Android phone using Dr.Fone - Screen Unlock.

Have you encountered the same situation? Do not fret. You may use Dr.Fone - Screen Unlock to unlock the screen lock on Android smartphones. It enables you to erase an Android phone’s password, PIN, pattern, and fingerprint.

Let’s learn how to safely remove the Android lock screen.

Step 1: Connect your phone

Open Dr.Fone on your PC, then select “Screen Unlock” from the list of tools.

The Dr.Fone functionality is still usable with the old UI of the Dr.Fone Mac version, but we will update it as soon as we can.

Connect your Android phone to the PC via a USB cable. then click the “Unlock Android Screen” button on the software.

Step 2. Choose a device model

Nearly all Android devices feature locked displays, including Android. Because the recovery kits for different phone models vary, it’s important to pick the correct device brand to unlock the lock. Every model of supporting hardware is included in the list.

Step 3. Switch to download mode

If you then adhere to the instructions on the software, the phone will enter Download Mode.

• Offset your phone.
• Hold down the Power, Home, and Volume Down keys all at once.
• Use the Volume Up button to start Download Mode.
• Remove the Android lock screen starting now..

Step 4. Download a package for recovery

The recovery package will begin downloading once you set your device in download mode. Wait only till it is completed.

Step 5: Unlock Android without erasing data

After the recovery package download is finished, click “Remove Now.” This operation won’t harm any data on your Android device.

When everything is done, you won’t need to enter a password to access your Android smartphone, allowing you to see all of your data without any limitations.

Bonus Tips: How To Keep Our Data Safe?

Dr.Fone - Phone Backup is an excellent solution to keeping data safe and secure and baking it up before resetting your device, even if you have forgotten your password. You may quickly and conveniently back up practically all forms of Android phone data with Dr.Fone - Phone Backup (Android). Additionally, you may examine and export only certain types of data.

Here’s how you can use Dr.Fone - Phone Backup to keep data safe.

Step 1: Connect your Android phone to your PC.

Open Dr.Fone on your PC, then select “Phone Backup” from the menu.

Next, join your Android phone to the computer with a USB cable. The phone must be in USB debugging mode, please. You will be prompted to approve USB Debugging in a pop-up window on the Android phone if your version of Android is higher. Press the OK button if you would.

Click Backup to start backing up the data on your Android device.

If you have previously used this programme to back up your device, you may review your backup history by clicking on “View backup history.”

Step 2: Choose which file types to backup.

Once the Android phone is connected, select the file types you want to backup. Dr. Fone has previously examined all the file types for you. After that, click Backup to start the backup process.

It will cost some time for the backup. Do not disconnect your Android phone from the computer, use it, or delete any data while making a backup.

When the backup is complete, you may click the View the backup button to see what’s in the backup file.

The Bottom Line

It would be best if you had been able to answer the question, “How to unlock an Android phone without password,” using the techniques we have demonstrated here. The most effective way for resetting an Android phone is Wondershare Dr.Fone - Screen Unlock for Android. You may quickly reset a locked Android phone without a password with only a few clicks.