How To Fix OEM Unlock Missing on Vivo S18?

How To Fix OEM Unlock Missing on Vivo S18?

Marry Lv13

How To Fix OEM Unlock Missing on Vivo S18?

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 S18 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 S18 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!

How To Unlock a Vivo S18 Easily?

The Vivo series has made a significant splash in the smartphone market. It captivated users with its blend of innovative features and sleek design. The Vivo S18 have recently been the go-to choice for people following the phone series. If you’re a proud owner of Vivo S18 , this guide is your go-to reference for unlocking the full potential of your device.

It will cover various ways toperform a Vivo S18 unlock, no matter the context of what you need unlocking for. This ensures you can enjoy every aspect of your shiny new Pixel to the fullest. Whether you’re a tech enthusiast or a casual user, these tips and tricks will help you master your Vivo device.

Vivo S18 series lineup

Part 1: Ways That Vivo Lets You Unlock Your Vivo S18

Vivo S18 are more than just smartphones; they are gateways to a personalized and secure user experience. To access the myriad of features these devices offer, Google provides several unlocking methods, ensuring both convenience and security. Here are these options:

  • A Personal Identification Number (PIN) is a simple yet effective way to secure your phone. It’s a numeric code that you enter on the lock screen. Setting up a PIN is straightforward via the Vivo S18 device’s security settings, and unlocking your phone is as easy as tapping in the correct sequence of numbers.
  • Similar to a PIN but potentially more secure due to the allowance of a longer combination of numbers and letters. A passcode is ideal for those who seek an extra layer of security. You set it up in the security settings and use it to unlock your phone just like a PIN but with the added complexity of alphanumeric characters.
  • Face Unlock.Pixel’s Face Unlock uses advanced facial recognition software. It scans your face to grant access, offering a hands-free and quick way to unlock your Pixel. This feature can be activated in the security settings and requires a simple glance at your phone to unlock.
![woman holding a Vivo S18 ](https://images.wondershare.com/drfone/article/2024/01/google-pixel-7-unlock-02.jpg)
  • Fingerprint Unlock. This method uses your unique fingerprint as a key. It’s fast, secure, and convenient. The Pixel 6a, 6, and 7 fingerprint scanners are actually under the display. Register your fingerprint in the settings, then touch the sensor to gain access.
  • Pattern. If you prefer a more visual method, the pattern locklets you draw a specific shape or pattern on the screen to unlock your phone. It’s a fun and interactive way to secure your device. Create your pattern in the security settings, and unlock your phone by replicating it on the lock screen.

In essence, each unlocking method offered by the Vivo S18 provides a blend of security and ease. Whichever unlocking method you prefer, Google ensures that accessing your phone is secure and convenient. All you need to do is set up your preferred method in the Vivo S18 device’s settings and use it to unlock your phone.

Part 2: What To Do if You Forgot Your Screen Unlock Method

Forgetting the screen unlock method on your Vivo S18 , whether it’s a PIN, passcode, pattern, or encountering face or fingerprint recognition issues, can be a frustrating experience. Fortunately, there are methods to regain access to your device. This section will show you your options, from third-party tools to other methods like Safe Mode and force resetting.

Learn different ways to unlock a Vivo S18, from forgotten screen locks here.

Method 1: Wondershare Dr.Fone

Wondershare Dr.Fone is a comprehensive software suite that manages various aspects of your mobile device. It’s especially renowned for its ability to address common smartphone issues, including forgotten screen unlocks.

Dr.Fone offers a range of features, including data recovery, data transfer between devices, backup and restore functions, and a screen unlock feature. The Screen Unlock feature of Dr.Fone stands out for its ability to bypass your Vivo’s screen lock without losing data. It supports PIN, pattern, password, fingerprint, and face lock.

To do this, perform the steps below:

  • Step 1: Download and install Dr.Fone on your computer. Then, connect your Pixel phone to it with a cable.

Step 2: Go to Toolbox > Screen Unlock. Then, use a connector to connect your Pixel device to the PC.

dr.fone home

  • Step 3: Select Android on this page.

dr.fone screen unlock home

  • Step 4: Choose Unlock Android Screen, and select your phone’s brand (Google) in the following brand list.

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![unlock android or google frp lock](https://images.wondershare.com/drfone/guide/android-screen-unlock-3.png)
  • Step 5: Now, choose Remove without Data Loss.

screen unlock options

  • Step 6: Ensure the correctness of your device details. Then, type in “000000” to proceed.

confirmation 00000 screen

  • Step 7: Follow on-screen instructions to put your device into download mode.

download mode instructions

  • Step 8: Click Done after the process has finished.

screen unlock success

Tips: Is your Pixel locked accidently? Are you searching for a powerful tool? No worries as Dr.Fone is here to help you. Download it and start a seamless unlock experience!

Method 2: Entering Into Safe Mode

Safe Mode is a diagnostic mode in Android that can help bypass third-party lock screen apps. It’s useful if you’ve used a third-party app for your lock screen.

To do this, press the power button, then long-press on the Power off option. Tap OK when Reboot to safe mode option appears. In Safe Mode, third-party apps are disabled. Thus, you can now access your device if a third-party app is causing lock issues.

Method 3: Force Resetting a Device/Flashing a New ROM

Force resetting or flashing a new ROM can be considered a last resort. They involve erasing all data on your device or installing a new operating system.

  • Force resetting your device. To force reset your Vivo, press and hold the Power and Volume Down buttons simultaneously to enter recovery mode. Use the volume buttons to navigate to Wipe data/factory resetand select it with the power button. This will get rid of existing password locks.
  • Flashing a new ROM. This is more complex and typically requires downloading a new firmware and flashing tool. It’s only recommended for advanced users or as a last resort.

Remember, while these methods can effectively unlock your device, they also come with risks. Always back up your data regularly, and use these methods responsibly, considering their potential to erase your data or affect your device’s warranty.

Bonus: How To Perform a SIM Unlock on Vivo

Unlocking the SIM on your Vivo, particularly the Vivo S18 , opens up a world of flexibility, especially for those who frequently travel or wish to switch carriers. This process can be accomplished for free through your carrier, provided certain conditions are met. Dive into the steps and considerations for performing a SIM unlock on your Vivo.

Understanding the Prerequisites

Before proceeding with the SIM unlock, ensure you’re in good standing with your carrier. This means:

  • No outstanding bills.
  • Your contract for the phone has expired.
  • The device has been in your possession for at least 60-90 days.

Different carriers have varying requirements for a SIM unlock, so your first move should be to contact them for specific details.

Steps for SIM Unlock Through Your Carrier

Here are the steps to SIM unlock your Vivo S18,These generally involve the following steps but are still subject to the official instructions of your carrier:

sim and unlock

  • Step 1: Open the Phone app and dial *#06# on your Vivo. This will display your phone’s IMEI number. Note this number down for future reference.
  • Step 2: Call your carrier and request a SIM unlock code. You’ll likely need to provide your Vivo’s IMEI number.
  • Step 3: If you meet your carrier’s requirements, they will email you the SIM unlock code within 2-5 days.
  • Step 4: Once you receive the code, replace your current SIM with one from a different carrier. When prompted, enter the SIM unlock code you received via email.

Alternative Method: Android SIM Unlock

If your carrier cannot unlock your Vivo S18 ’s SIM, or if you prefer a quicker solution, consider using network unlocking services. This may be websites like UnlockBase, Mobile Unlocks, etc.

This generally involves the following steps:

  • Step 1: Like the previous method, retrieve your IMEI number by dialing *#06# on your Pixel.
  • Step 2: Go to the Android SIM unlock provider’s website and enter your device’s IMEI number.
  • Step 3: Follow through with the checkout process, providing payment and contact information.
  • Step 4: Once the payment is processed, you’ll receive the unlock code via SMS or email. Insert a SIM from a different carrier into your Pixel, then enter the received unlock code when prompted.

By following these steps, you can successfully unlock the SIM of your Vivo device, ensuring you can enjoy your phone with the carrier of your choice, wherever your travels may take you.

Important Considerations

Remember, unlocking the SIM doesn’t absolve you from your carrier contract. You’re still obligated to make timely payments as per your agreement. The primary advantage of unlocking your SIM is the freedom to use your Vivo S18 with any carrier’s SIM card, offering greater flexibility and control over your mobile experience. Thus, it is encouraged not to do anything illegal to avoid future complications.

Conclusion

This article explored various methods to unlock Vivo S18,It delved into standard unlocking features like PIN, passcode, face and fingerprint recognition, pattern unlock, and how to handle situations where you forget your screen unlock method. It also highlighted that learning to unlock your screen, especially on Vivo phones, is crucial to ensure continuous access to your device.

Wondershare Dr.Fone is a reliable tool for those challenging moments when you forget your passcode. It offers a straightforward solution for screen unlocking and ensures you keep your phone functional and handy at all times.

Top 12 Prominent Vivo S18 Fingerprint Not Working Solutions

Part 1. Optimal Solution: Unlock With Wondershare Dr.Fone Directly

Facing a malfunctioning fingerprint on your Vivo S18 can be frustrating. In this scenario, the most effective resolution is the removal of the registered fingerprint. Yet, traditional methods of removing the fingerprint can be difficult and pose security risks. In this case, going for tools like Wondershare Dr.Fone is the best choice. This tool ensures your Pixel device is at no risk.

Dr.Fone offers a swift solution to remove the Android lock screen in five minutes. It effectively removes 4 types of screen locks. These include patterns, PINs, passwords, and fingerprints. Dr.Fone can bypass the Android FRP lock without needing a PIN or Google account. It ensures accessibility to the Android device without such credentials.

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Dr.Fone - Screen Unlock (Android)

The Best UnlockJunky Alternative to Bypass FRP and Solve Your Screen 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.

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Prominent Features of Wondershare Dr.Fone

  1. FRP bypass is enabled for brands like Samsung, Xiaomi, Redmi, Oppo, Realme , and Vivo.
  2. With Dr.Fone, bypassing screen locks can be achieved without data loss.
  3. Fone supports 2000+ Android phones and tablets from over 18 brands for screen unlocking.

Step-by-Step Guide To Remove Fingerprint Type Lock on Google Pixel Using Dr.Fone

With Dr.Fone, you can resolve the Vivo S18 fingerprint sensor not working issue within minutes. Below is a detailed walkthrough for removing a fingerprint lock on a Google Pixel:

  • Step 1: Connecting and Accessing Screen Unlock Feature on Dr.Fone

Open Wondershare Dr.Fone and connect your Android device via a USB cable. Once the connection is established, navigate to the “Toolbox” tab and choose “Screen Unlock.” Upon reaching the new screen, choose the “Android” option. Then, select “Unlock Android Screen” from the options on the following screen.

opt for dr fone screen unlock

  • Step 2: Selecting Google As the Vivo S18 device Brand and Activating Recovery Mode

Afterward, you’ll be guided to a subsequent screen prompting you to choose the Vivo S18 device brand, Google. Once you select the brand, you’ll be directed to enter a specific mode corresponding to it. For Google Pixel Devices, the specific mode to enter is Recovery Mode. Simply follow the on-screen instructions to activate Recovery Mode on your device.

put your device in recovery mode

  • Step 3: Initiate the Fingerprint Removal Process

After entering Recovery Mode, the screen unlocking procedure will initiate automatically. Please wait for the fingerprint removal process to finish. In case of failure, select “Try Again” to attempt unlocking again. Upon successfully unlocking your Android device’s screen, tap “Done.”

screen unlocked successfully

Part 2. 11 Conventional Solutions To Resolve Pixel Fingerprint Not Working

The solution above using Wondershare Dr.Fone is an effective and comprehensive method. It can tackle fingerprint recognition issues, but sometimes, users may look for simpler alternatives. We will explore conventional solutions that can address Pixel fingerprint problems. Each solution will also explain the underlying reasons for the Pixel 6 fingerprint sensor issue.

1. Fingerprint Sensor Not Touched Firmly

Problem

If the fingerprint sensor fails to recognize your fingerprint, it might be due to inadequate pressure. This could also be due to improper finger placement on the sensor.

Solution: Firm Placement

Ensure you firmly place your finger on the sensor, covering it entirely. Avoid too much pressure, but make sure the sensor fully contacts your fingerprint.

gently press fingerprint sensor

2. Device Showing Glitches

Problem

Glitches or software bugs in your Pixel device may cause disruptions. This can include issues with the fingerprint sensor’s functionality. These problems can range from minor issues to severe software glitches.

Solution: Restart Your Pixel Device

One of the easiest and simplest solutions is to restart your Pixel phone. You can do that by pressing the “Power” and the “Volume Up” keys. It will lead to a pop-up power menu where you must choose “Restart” to reboot your device.

restart google pixel device

3. Outdated Firmware

Problem

An outdated operating system or firmware can lead to compatibility issues. This can lead to malfunctioning features like the Pixel 6A fingerprint sensor not working.

Solution: Check for Updates

The best way to resolve this issue is to update your Pixel device. Having an outdated version of Android OS can lead to an accumulation of bugs and glitches. Moreover, it can seriously affect the Vivo S18 device’s performance, causing many issues. Here is how to check and update your Pixel phone:

Instructions. On your Pixel device, access the “Settings” app. Within Settings, scroll down to tap the “System” option. On the following screen, hit the “System update” option to check if any latest update is available. Here, if you see any updates, download and install them promptly. Before initiating the update, ensure your device is connected to a stable Wi-Fi network with sufficient battery charge.

update device to latest version

4. Dirty Phone or Sensor

Problem

Accumulated dirt, dust, or residue on the phone or fingerprint sensor can cause obstruction. This can lead to the failure to properly recognize your fingerprint.

Solution

1. Cleaning the Phone

Employ a gentle, dry microfiber cloth for wiping down the complete surface of your Pixel device. Take particular care to thoroughly clean the region surrounding the fingerprint sensor. Refrain from utilizing rough substances or strong chemicals as they could potentially cause harm to the Vivo S18 device.

2. Fingerprint Sensor Cleaning

Gently wipe the fingerprint sensor area using a clean, dry cloth to ensure thorough cleaning. For better results, consider using a dampened cotton swab with water or isopropyl alcohol. Before using it again, ensure the sensor is entirely dry.

3. Compressed Air or Soft Brush

Use compressed air or a soft brush if there’s visible debris or particles around the sensor. Be cautious not to apply excessive pressure that might damage the sensor.

dirty sensor or phone issue

5. Screen Protector: Dirty or Damaged

Problem

A smudged or impaired screen protector might disrupt the working of the fingerprint sensor. This can potentially cause it to fail to recognize your fingerprint.

Solution

1. Clean the Screen Protector

Start by effectively cleaning the screen protector on your Pixel device. For a thorough cleaning, consider utilizing a screen cleaning solution. Ensure that the screen protector is free from any dirt or debris.

2. Replace Damaged Protectors

Is the screen protector visibly damaged, scratched, or peeling off? If yes, consider replacing it with a new one. Damaged protectors can hinder fingerprint recognition and compromise device protection.

3. Check Compatibility

Ensure the screen protector is designed to be compatible with fingerprint sensors. Some protectors may obstruct or interfere with the sensor’s functionality.

4. Remove Air Bubbles

There can be air bubbles trapped under the screen protector. If there are, gently press them out towards the edges using a card designed for this purpose.

protector screen dirty or damaged

6. Clean Your Finger

Problem

The problem may lie with your fingers rather than the Vivo S18 device. Unclean or moist fingers can hinder accurate fingerprint recognition on the sensor, causing the Vivo S18 fingerprint sensor to not work.

Solution

1. Cleanse and Dry Your Hands

Remove any dirt, oil, or moisture that might cause issues with the fingerprint sensor. It’s crucial to wash and thoroughly dry your hands. Additionally, verify that your fingers are entirely dry before engaging the sensor. The reason is any moisture or dampness may cause inaccuracies in fingerprint identification.

2. Avoid Oily or Greasy Substances

Refrain from touching oily or greasy surfaces before using the fingerprint sensor. These substances can transfer onto your fingers, affecting sensor accuracy. If your fingers are dirty or damp, pause to clean them using a dry, clean cloth.

cleaning finger to use fingerprint

7. Covering Screen if Fingerprint on Screen

Problem

Fingerprint marks or smudges on the screen might disrupt sensor functionality. This leads to inaccurate recognition when you try to unlock your device.

Solution

1. Avoid Covering the Sensor Area

Be cautious while cleaning the screen to avoid covering or smudging the area around the fingerprint sensor. Precise cleaning around this area prevents interference with sensor functionality.

2. Use Proper Holding Technique

While holding the Vivo S18 device, avoid placing your fingers or palms over the fingerprint sensor. Opt for holding the Vivo S18 device to minimize accidental contact with the sensor area.

![hold phone properly](https://images.wondershare.com/drfone/article/2024/01/pixel-7-fingerprint-not-working-11.jpg)

8. Fingerprint Sensor Not Visible

Problem

Misconfigured settings on your Pixel device can lead to situations where the fingerprint sensor is not visible. It can lead to scenarios where the Vivo S18 device fails to recognize your screen unlocking attempt.

Solution: Adjust the Setting To Consistently Display the Sensor

You must adjust the display settings to ensure the fingerprint sensor is always visible. To do that, you can begin by opening the Settings app. Navigate to the “Display” tab and select “Lock Screen.” On the following window, toggle on “Always show time and info.”

put sensor to always display

9. Low Touch Sensitivity

Problem

The fingerprint sensor may have low touch sensitivity . It can lead to difficulties in accurately recognizing fingerprints, leading to Vivo S18 fingerprint not working.

Solution

1. Adjust Sensitivity Settings

Accessories like a screen protector might impact the performance of your Pixel device’s touch sensitivity. When using a screen protector, your Pixel enhances touch sensitivity. To do that, navigate to the Settings app and open it. Move to the “Display” window and scroll down to the last option. Toggle on the “Screen protector mode” to increase the screen sensitivity.

turn on screen protector mode

2. Finger Re-Enrollment

Delete existing fingerprints and re-register them. This re-enrollment can sometimes improve sensitivity and help remove the issues. Here is how you can delete and re-enroll your fingerprint:

  • Step 1. In the Settings app of your Pixel, tap “Security & Privacy.” Then, press “Device Unlock” and choose “Fingerprint Unlock.” The device will now ask you to provide your device PIN or password.

navigate to security settings

  • Step 2. Tap “Fingerprint Unlock” on the following screen and delete the previously enrolled fingerprints. Then, press “Add fingerprint” and follow the on-screen prompts to complete the process.

add new fingerprint

10. Other Hardware Issues

Problem

Persistent fingerprint sensor problems might indicate underlying hardware issues . This could go beyond common troubleshooting and might require professional help.

Solution

1. Inspect for Physical Damage

Thoroughly examine your Pixel device for any physical damage. These include cracks, dents, or scratches around the fingerprint sensor area. Physical damage could affect the sensor’s functionality.

2. Safe Mode Check

Boot the Vivo S18 device in safe mode to determine if third-party apps are causing conflicts. To do that, press the “Power” key with any volume key to access the power menu. Afterward, long-press the “Power Off” option until the “Reboot to Safe Mode” option appears on your device’s screen. Press “OK” to reboot into Safe Mode and test the fingerprint sensor’s functionality.

reboot google pixel to safe mode

3. Professional Assessment

If you suspect hardware issues, seek professional help from authorized service centers. A clear sign of hardware issues can be visible damage or the sensor failing to function even in safe mode.

11. Factory Reset as Last Resort

Problem

Did all other troubleshooting methods fail to resolve persistent fingerprint sensor issues? Then, a factory reset might be required to revert the Vivo S18 device to its original settings.

Solution

1. Backup Data

Before initiating a factory reset, ensure that all crucial data is safeguarded. This encompasses contacts, photos, documents, and any other significant files. Use Google’s backup services or third-party apps to securely back up your data .

2. Initiating Factory Reset

Proceed with the following steps to execute a factory reset on your Pixel device:

  • Step 1. On your Pixel smartphone, navigate to Settings and access the “System” tab. Here, scroll down to the bottom and tap “Reset Options.”

head to system settings

  • Step 2. In “Reset Options,” choose “Erase All Data (Factory Reset)” to continue. Afterward, select “Erase All Data” on the next screen and follow the instructions to complete the process.

factory reset your device

In summary, this article detailed various methods to fix the Vivo S18 fingerprint not working. Diverse approaches were explored, from simple steps like sensor cleaning to advanced solutions like factory resets. However, Dr.Fone stands out among these solutions as a top-tier option. It offers a secure and efficient resolution to the persistent problem of fingerprint failure on the Vivo S18 .


  • Title: How To Fix OEM Unlock Missing on Vivo S18?
  • Author: Marry
  • Created at : 2024-07-18 13:03:09
  • Updated at : 2024-07-19 13:03:09
  • Link: https://unlock-android.techidaily.com/how-to-fix-oem-unlock-missing-on-vivo-s18-by-drfone-android/
  • License: This work is licensed under CC BY-NC-SA 4.0.
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