Top 12 Prominent Vivo Y78t Fingerprint Not Working Solutions

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

Facing a malfunctioning fingerprint on your Vivo Y78t 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.

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.

4,008,672 people have downloaded it

Prominent Features of Wondershare Dr.Fone

FRP bypass is enabled for brands like Samsung, Xiaomi, Redmi, Oppo, Realme , and Vivo.
With Dr.Fone, bypassing screen locks can be achieved without data loss.
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 Y78t 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.

Step 2: Selecting Google As the Vivo Y78t device Brand and Activating Recovery Mode

Afterward, you’ll be guided to a subsequent screen prompting you to choose the Vivo Y78t 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.

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.”

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.

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.

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 Y78t 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.

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 Y78t 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.

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.

6. Clean Your Finger

Problem

The problem may lie with your fingers rather than the Vivo Y78t device. Unclean or moist fingers can hinder accurate fingerprint recognition on the sensor, causing the Vivo Y78t 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.

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 Y78t device, avoid placing your fingers or palms over the fingerprint sensor. Opt for holding the Vivo Y78t device to minimize accidental contact with the sensor area.

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 Y78t 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.”

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 Y78t 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.

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.

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.

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 Y78t 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.

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 Y78t 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.”

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.

In summary, this article detailed various methods to fix the Vivo Y78t 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 Y78t .

Top Apps and Online Tools To Track Vivo Y78t Phone [With/Without IMEI Number]

Losing your smartphone can be distressing, given its importance in daily life. Ensuring the ability to trace the whereabouts of a misplaced device holds great importance. It is due to potential theft, loss, or accidental misplacement.

Fortunately, many ways exist to retrieve a lost mobile phone by utilizing its IMEI number. This article will take you through the anti-theft app & IMEI tracker of all phone location methods. Additionally, we will discuss a unique tool designed to unlock locked devices.

Part 1: An Introduction to IMEI Numbers and Its Utility

Every mobile device has a special identifier that is helpful in the anti-theft app & IMEI tracker activities. It is known as the International Mobile Equipment Identity or IMEI number. While often overlooked, it holds the key to many essential services and functions.

This makes it an indispensable component of modern mobile technology. The IMEI number serves as a digital fingerprint for mobile phones. Its primary purposes are summarized below:

Device Identification: Each mobile device possesses a distinct IMEI number. This sets it apart from every other phone in existence. This identification is essential for cellular networks and service providers. It helps in recognizing, managing, and connecting devices accurately.
Traceability and Tracking: In cases of theft, loss, or unauthorized use, the IMEI number becomes a crucial tool for tracking. It provides law enforcement agencies with the means to pinpoint the Vivo Y78t device’s location.
Warranty and Support: Manufacturers use IMEI numbers to manage warranties and provide technical support. These numbers help confirm the Vivo Y78t device’s authenticity, purchase date, and warranty coverage. This streamlines the process of repairs and replacements.
Security Measures: IMEI numbers play a role in security measures such as device blacklisting. If a device is reported stolen, its IMEI number can be added to a global database. This prevents it from being used on any network and renders it useless to thieves.

Part 2: A Dedicated Android Solution To Track Phone Location Using IMEI Number

IMEI numbers are important for more than just working as identifiers. One practical application lies in tracking a lost or stolen phone. It is a scenario that can cause significant distress. To address this concern, a great solution is the “AntiTheft App - IMEI Tracker, All Mobile Location.”

It is a dedicated Android app designed to harness the power of IMEI numbers for phone tracking. This anti-theft app & IMEI tracker provides a comprehensive method to locate a misplaced or stolen device. Its core work revolves around using the IMEI number to find the Vivo Y78t device’s location. With it, you can send commands via SMS (text messages) from an alternate device.

These functionalities encompass using secure commands with a designated secret code. Using these commands, you can have the smartphone ring audibly at its maximum volume. It can also get the GPS coordinates of the Vivo Y78t device. You can also display a personalized message across the screen. Lastly, it can even capture photographs through the front-facing camera.

Part 3: Online Solutions: Finding The Best Anti-Theft Online Tool Using IMEI Tracking

The internet makes it easy to deal with lost or stolen devices. Online solutions offer another way to find your smartphone using IMEI tracking. In contrast to conventional approaches, these digital tools enhance the efficiency of the process.

They provide a ray of optimism, even for individuals with limited tech proficiency. Below are two prominent anti-theft apps & IMEI trackers online that use IMEI tracking to aid in phone location:

Method 1. IMEI-Tracker

The purpose of this web-based platform is to streamline the procedure for locating a misplaced or stolen mobile phone. With just the IMEI number of your lost device, you can ascertain its GPS coordinates. Employing sophisticated algorithms, the platform triangulates the rough whereabouts of the Vivo Y78t device. The following steps outline how to use IMEI-Tracker to find the location of your lost device:

Step 1: Begin by accessing a web browser on a device and navigate to the IMEI-Tracker.com website. Here, click “Track IMEI” to access the IMEI tracking feature.
Step 2: On the next page, enter your lost device’s IMEI number and select the country. Afterward, click “Track IMEI” to kickstart the tracking process.

Method 2. TrackIMEI.net

Another player in the online IMEI tracking space is TrackIMEI.net. It offers a user-friendly approach to locating missing devices. By inputting the IMEI number into the platform, you can pinpoint the location of your device. This service also facilitates the reporting of lost or stolen devices. Use the following steps to locate your device via TrackIMEI.net.

Step: On a web browser, access TrackIMEI.net and type your IMEI number in the text field. Then click “Search” to initiate the search for your lost device.

Part 4: Anti-Theft Apps That Locate Devices Without IMEI

Anti-theft apps offer a mean to locate a device even without relying on the IMEI number. These apps provide an alternative route to safeguard your valuable possessions. Moreover, these apps offer an extra layer of security and assurance. Below are two noteworthy anti-theft apps that enable users to track their devices:

Method 1. Find My Device (IMEI Tracker)

Available on the Play Store, the Find My Device (IMEI Tracker) is a popular choice among users. It allows you to experience the utmost simplicity in tracking your Android device. With this cutting-edge GPS tracker, you can effortlessly track your Android phone.

To activate the tracking function, the app must be installed on the targeted phone. After installing the anti-theft app & IMEI tracker, you can use the website to track the Vivo Y78t device’s location.

Method 2. Anti-Theft Mobile Tracker

The Anti-Theft Mobile Tracker app provides an innovative approach to tracking devices. It allows the transmission of the precise location of the lost device to a recipient device. This functionality operates without requiring an active Internet connection.

The anti-theft app & IMEI tracker for all mobile locations enables remote actions, including locking the Vivo Y78t device and erasing personal data. Through this app, users can lock their phones and safeguard their data from a distance.

Bonus Part: Got Your Vivo Y78t Locked? Unlock It Easily With the Best Third-Party Utility

Losing access to our own devices due to a forgotten password or lock pattern can be exasperating. In such cases, a reliable third-party utility, Wondershare Dr.Fone, comes to the rescue. It offers a seamless method to regain access and control over your precious devices. It is designed to provide a straightforward way to unlock locked Android devices.

The utility offers different unlock modes to cater to various scenarios. These include PIN, pattern, password, and even fingerprint or facial recognition. Wondershare Dr.Fone boasts a high success rate in unlocking devices, making it a reliable option.

Dr.Fone - Screen Unlock (Android)

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

Completely unlinked from the previous Google account, it won’t be traced or blocked by it anymore.
Remove all Android screen locks (PIN/pattern/fingerprints/face ID) in minutes.
Almost all Samsung phones and tablets are supported (Currently for Android 6-13).
Provide specific removal solutions to promise good success rate.

4,008,671 people have downloaded it

Prominent Features of Wondershare Dr.Fone

When unlocking a locked Android Phone, like a Samsung or LG device, with Dr.Fone, you can do it without data loss.
It allows you to bypass Google FRPlock on all major Android brands like Samsung, Mi, OPPO, etc.
With Wondershare Dr.Fone, you can unlock screen locks such as PIN, password, pattern, and fingerprint.

Unlocking a Locked Smartphone Using Dr.Fone – Screen Unlock (Android)

Unlocking your locked Android device using Wondershare Dr.Fone is a straightforward process. Here’s a simplified step-by-step guide to help you through the process of unlocking your Android screen lock:

Step 1: Navigate to Screen Unlock in Wondershare Dr.Fone

You start with launching Wondershare Dr.Fone on your computer. Navigate to “Toolbox” and access “Screen Unlock.” On the following screen, choose “Android” as your device type.

Step 2: Choose Your Vivo Y78t Device Brand

After choosing the Vivo Y78t device type, select “Unlock Android Screen”. Now choose the brand of your Android, for example, Samsung, and on the next screen, click “Remove without Data Loss”. Following this, you need to input the “Brand”, “Device Name”, and “Device Model” of your smartphone.

Step 3: Agree to the Android Screen Unlock Terms

Enable the checkbox that indicates your agreement with the warning and your readiness to proceed. Then, proceed by clicking the “Next” button to unlock the screen. A confirmation step will appear, asking you to enter the code “000000”. Once you’ve entered the code, click on “Confirm” to carry out the necessary operation.

Step 4: Unlock Your Locked Android Device

The final step is to put your Android device into Download Mode. To make it easier for you, the instructions are given on the screen. As soon as the Download Mode is activated, the Android screen unlock process will start. Click “Done” once the process has been completed.

Conclusion

In short, it can be scary to lose your smartphone due to theft, misplacement, or unauthorized access. During our exploration, we discovered many ways to locate your device if you lose it. The “Anti-theft App & IMEI Tracker All Phone Location“ stands out as a beacon of hope. It provides a dedicated Android solution to locate devices even in adverse situations.

As a bonus, Wondershare Dr.Fone emerged as a powerful ally for those locked out of their devices. This Android screen unlock toolkit offers a user-friendly interface and a high success rate. To conclude, as technology continues to evolve, your ability to safeguard your devices and data becomes robust.

How to Bypass Android Lock Screen Using Emergency Call On Vivo Y78t?

The main reason why we keep our smartphone locked is to prevent children (or stalkers) checking out our private photos or messages. You don’t want anyone to access your pictures, emails, or other important data. What if you forget your pattern or PIN and cannot access your phone? Or someone changes lock screen pattern to leave you annoyed?

To avoid such types of conditions, we have tried and tested the following methods to bypass the Vivo lock screen pattern, PIN, password, and fingerprint.

Method 1. Use ‘Find My Mobile’ feature on Vivo Phone

All Vivo devices come with the “Find My Mobile” feature. To bypass the Vivo lock screen pattern, PIN, password, and fingerprint, you can just follow the below steps to get it done.

Step 1. First, set up your Vivo account and log in.
Step 2. Click the “Lock My Screen” button.
Step 3. Enter a new PIN in the first field
Step 4. Click the “Lock” button at the bottom
Step 5. Within a few minutes, it will change the lock screen password to the PIN so that you can unlock your device.

Method 2. Use Android Device Manager to Bypass Vivo Password

To know how to unlock a Vivo phone lock password with Android device manager, make sure the Android Device Manager is enabled on your device.

Step 1. Visit google.com/android/devicemanager on other smartphones or PC.
Step 2. Log into your Google account that you used on your locked device.
Step 3. Choose the Vivo Y78t device you want to unlock in ADM interface
Step 4. Click on the “Lock” option.
Step 5. Enter a password. There is no need to enter any recovery message. Select “Lock” again.
Step 6. You would see a confirmation below if it is successful, with “Ring, Lock and Erase” buttons.
Step 7. Now you must get the password field on your phone where you can enter your new password, and your phone will be unlocked.
Step 8. Go to lock screen settings on your device and disable the temporary password.

If your device is still running on Android 4.4 or lower, here’s how to bypass the Vivo lock screen fast.

Step 1. Enter the wrong pattern for five times
Step 2. Choose “Forgot Pattern”
Step 3. Enter your Google account login or backup PIN
Step 4. Now your phone would be unlocked.

Method 4. ‘Pattern Password Disable’ and Custom Recovery (SD Card needed)

To bypass the Vivo lock screen in this method, you ought to be an advanced user who knows what are “custom recovery” and “rooting”. You have to install any kind of customer recovery, and you should have an SD card on your phone. SD card is required to move a ZIP file to the phone, and it is the only way to transfer the file when the Vivo Y78t device is locked.

Step 1. Download a zip file named “Pattern Password Disable” on your computer and move it to the SD card of your Vivo device.
Step 2. Insert the card on your device
Step 3. Restart your device into recovery mode.
Step 4. Flash the file on your card and restart the phone.
Step 5. Now your phone would boot up without lock screen. Don’t worry if you had a gesture lock or password. All you need to do is to input a random gesture or password, and it will be unlocked.

Method 5. Delete the Password File Using ADB

It is yet another option that will work only when you have enabled USB Debugging previously on your device, and your PC is allowed to connect via ADB. If you meet such requirements, it is ideal to use this method to unlock the Vivo lock screen.

Step 1. Connect your device to the PC using USB cable and open command prompt in the adb directory. Type the command “adb shell rm /data/system/gesture.key” and then press “Enter”.
Step 2. Restart your phone, and a secure lock screen must be gone, and you can access your device. Be sure to set a new PIN, pattern, or password before rebooting again.

Method 6. Factory Reset to Bypass Vivo Lock Screen

A factory reset is the best option in almost any case if one of these solutions couldn’t work. According to your device type, the process may vary. In most devices, you have to turn off the Vivo Y78t device completely to start the process. But this method will delete all the precious data on the Vivo Y78t device after the factory reset.

Step 1. Hold the power button and volume down at the same time. It will open the Bootloader menu.
Step 2. Press the volume down button two times to choose “Recovery Mode” and select it by pressing the “Power” button.
Step 3. Hold down the power button and tap “Volume Up” once, and you would enter “recovery” mode.
Step 4. Choose “Wipe Data/Factory Reset” option by using volume buttons.
Step 5. Select it by pressing the Power button.
Step 6. Select “Reboot System Now” once the process is done.

Backup your Vivo phone regularly in case of any data loss in the future.

Method 7. Boot into Safe Mode

Chances may be that you are using a third-party lock screen app. Then lucky for you, this way works best to bypass the Vivo lock screen. Specifically, you can boot your Vivo device into Android Safe Mode .

Step 1. Open up the Power menu from the lock screen and press and hold the “Power Off” option.
Step 2. It will ask if you want to boot in safe mode. Tap “OK”
Step 3. Once the process finishes, it will temporarily disable the lock screen activated by the third-party app.
Step 4. Uninstall the third-party lock screen or just reset the data.
Step 5. Reboot your device and get out of safe mode.
Step 6. Now the irritating lock screen app is removed completely.

Method 8. Other Methods

Step 1. Take your friend’s phone to call on your locked phone.
Step 2. Accept the call and press the back button without disconnecting.
Step 3. Now you can access the Vivo Y78t device completely
Step 4. Go to the security settings of the Vivo Y78t device and remove the pattern or pin.
Step 5. It will ask you the correct pin that you don’t know, guess, and try various combinations you can recall.

To avoid forgetting your password or PIN next time, be sure to write the pattern or numbers on a text file or paper to keep them safe. If you have to bypass the Vivo lock screen pattern, PIN, password, and fingerprint, you may consider using Dr.Fone - Screen Unlock (Android). It is a professional tool that can remove all the fingerprints, pattern, and password lock screens without losing any data on your phone.

Android Unlock

Top 12 Prominent Vivo Y78t Fingerprint Not Working Solutions