In 2024, 6 Proven Ways to Unlock Vivo Y77t Phone When You Forget the Password
6 Proven Ways to Unlock Vivo Y77t Phone When You Forget the Password
Smartphones are mushrooming in today’s world, and it is like everybody is using these kinds of phones. Android phones are the most popular phone used by millions of users across the globe. As an Android user, I am sure you are keen to protect the data on your phone or prevent an unauthorized person from using it. One method to protect your phone data is to lock your phone screen. This is a good feeling since you will be the only one accessing your phone since you may not share the password with your child or even your spouse.
Unfortunately, this usually ends up forgetting the Android lock password. You may enter all the passwords you know, and your phones get locked. What will you do? In this article, we will learn how to unlock Android forgotten passwords in six ways.
You can watch the video above about how to unlock your Android Phone!
Way 1. Try Face or Fingerprint to Unlock Vivo Y77t Phone
How to unlock your phone when you forget the password? If you’ve forgotten your Android phone’s password, the best way to unlock it is to use your device’s built-in biometric authentication features, such as face unlock or fingerprint unlock.
Face unlock uses your device’s front-facing camera to recognize your face and unlock your phone. And fingerprint unlock uses your device’s fingerprint scanner to recognize your fingerprint and unlock your phone. Both of these methods are very secure. And they can quickly and easily unlock your phone without having to remember your password.
However, you must use the face or fingerprint unlock correctly on your Android phone. The tips below can prove helpful:
- Step 1: Make sure your face or fingerprint is registered correctly on the Vivo Y77t device.
- Step 2: Make sure the lighting is adequate and your face is clearly visible.
- Step 3: Make sure the distance between your face and the camera is not too far.
- Step 4: Make sure your finger is clean and dry before putting it on the fingerprint sensor.
- Step 5: Try to use the same angle and position of your face or fingerprint every time.
- Step 6: Try to use the same lighting conditions each time you use the face or fingerprint unlock.
- Step 7: Make sure your device is up to date with the latest security patches.
- Step 8: Make sure that your device is not rooted or running any custom ROMs.
If you are still unable to unlock your device, you may need to follow the solutions below.
Way 2. Unlocking Forgotten Password on Android Phones Using Dr.Fone Screen Unlock
Dr.Fone is an all-in-one tool that allows you to completely recover lost files from your Android device and unlock Android forgotten passwords. This cross-platform software can unlock a phone on which you forgot the Android password. This inbuilt feature allows you to remove the Android forgotten password while safeguarding your Android device’s data files. Above all, as the best phone unlocking software , it is cost-effective and easy to use.
- It can remove 4 screen lock types - pattern lock , PIN, password & fingerprints.
- No tech knowledge asked everybody can handle it.
- Work for Samsung Galaxy S/Note/Tab series, LG G2/G3/G4 , Huawei, Xiaomi, Lenovo, etc.
Dr.Fone - Screen Unlock (Android)
The Best Tool to Unlock Android Phone Forgot Password Without Any Hassle!
- 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.
- Bypass Android FRP lock without a PIN or Google account.
- Provide specific removal solutions to promise good success rate.
4,008,669 people have downloaded it
Attention: When you use it to unlock Huawei , Lenovo, and Xiaomi, the only sacrifice is that you will lose all the data after unlocking.
Well, in a few minutes, you will unlock your Android phone’s forgotten password with ease. First, download Dr.Fone and install it on your computer. Thereafter launch it and follow these steps.
Step 1. Select the Unlock Android Screen Option
Once you have opened the program, select the “Screen Unlock” option directly. Next, connect your Android-locked phone and click on the “Unlock Android screen” button on the program window.
Step 2. Select Your Device Brand
After this step, you will be guided to another screen where you need to choose the brand of your device.
Step 3. Enter Download Mode
You will need to put your device into Download Mode for unlocking. Depending on your device’s brand and model, the instructions for doing so may vary.
Step 4. Observe the Unlock Process
The screen displays the progress of unlocking, downloading drivers and configuration files. Once the entire process is complete, you will be able to access yours forgot password Android device without having to enter any passwords.
Way 3. Use Google Find My Device to Remotely Unlock Your Android Phone
You can use Google Find My Device to unlock your Android phone remotely with another Android phone. All you need is the Google account and its password bound to unlock Android phone forgotten password.
Note: You must have enabled Find My Device on your device before proceeding.
- Step 1: Open the Find My Device app or visit android/find .
- Step 2: Sign into your Google account.
- Step 3: You can select the Vivo Y77t device you want to unlock and tap on the “Unlock” button.
- Step 4: Your device will then be unlocked.
Please remember that this feature is only available for Android 5 and above in case Android forgot password.
Way 4. Reset Your Android and Remove the Password Using “Forgot Pattern” (Android 4.0)
There are several ways that you can reset Android after you forgot your password. You can reset using a google account or perform a factory reset.
This feature is available on Android 4.0 and older versions. So if you are using Android 5.0 and above, you can opt for the Screen Unlock tool or other ways as mentioned in this article.
- Step 1. Enter the wrong pin on your android phone five times.
- Step 2. Next, tap on “Forgot Password.” If it is a pattern, you will see “Forgot Pattern.”
- Step 3. It will then prompt you to add your Google account username and password.
- Step 4. Bravo! You can now reset your password.
Way 5. Factory Reset Your Android and Remove Password
If you are not successful with the above method, you can opt to perform a factory reset. This method should be the last option since you will lose data that has not been synced to your Google Account. It is wise to remove your SD card before performing the Android reset.
You can unlock your Android phone, i.e., Samsung, Oppo, or Vivo, by factory resetting it with these steps:
- Step 1. Turn off your Android phone.
- Step 2. Hold the Volume (-) and Power/Side buttons simultaneously.
- Step 3. When the phone vibrates, release the Power button and hold the Volume Down button.
- Step 4. Use the Volume (-) button for the “wipe data/factory reset” option. Then press the Power/Side button to confirm.
- Step 5. Tap the “Yes – delete all user data” option and the Power button to confirm.
- Step 6. After the reset, select “reboot system now” and tap the Power/Side button to restart your device.
- Step 7. Your phone will now be unlocked, and the password will be removed.
Way 6. Unlock Samsung Phone with Samsung’s Find My Mobile
The best way to unlock Android forgot password on Samsung is to use Samsung’s Find My Mobile service. This service allows you to remotely unlock your device, reset the lock screen password, and even disable the lock screen altogether.
- Step 1: To use this service, you must first log into your Samsung account on a computer or mobile device;
- Step 2: Once logged in, you can locate your device, select the “Unlock” option;
- Step 3: Enter your new password. Once unlocked, you can access your device with your new password.
FAQs About Android Unlock
1. Is there any universal code to unlock the Android phone?
No, there is no universal code for unlocking Android phones. They are different from stable SIM pins. Due to mobile device security, only users themselves can set up a unique password on their Android phone. So, it’s impossible to unlock an Android phone with a so-called universal code.
2. How to reset your Android phone password after the unlock?
- Step 1: Open your Samsung phone and go to the Settings menu.
- Step 2: Select the Lock Screen and Security options.
- Step 3: Select Screen Lock Type.
- Step 4: Select the Password option.
- Step 5: Enter your current password, then tap Continue.
- Step 6: Enter your new password twice, then tap OK.
- Step 7: Your new password will now be in effect.
3. Don’t you have face or fingerprint unlock? Let’s set them up.
- Step 1: Go to the Settings app on your Samsung phone.
- Step 2: Tap on the “Lock Screen” option.
- Step 3: Select “Screen Lock Type.”
- Step 4: Choose the “Fingerprints” or “Face unlock” option.
- Step 5: Follow the instructions on your screen to set up the desired unlock feature.
- Step 6: When you’re finished, you’ll be able to unlock your phone using either your fingerprint or your face.
4. How to unlock an Android phone without data loss?
There are several ways how to unlock Android phones without data loss . One of the most recommended ways is that you can set up the method to unlock with a fingerprint or face. Because it has an official guarantee, and you don’t need professional skills. Moreover, if your phone has Android version 4.0 or even older, unlocking your phone via “Forgot Pattern’ will also help you finish the goal.
The methods discussed above in Way 1 or Way 2 can guide you better into unlocking your device using this tool.
Conclusion
To conclude, when you have an Android Password forgot the phone at hand, this guide can offer you several useful perspectives. However, it is advisable to perform Android password recovery using Dr.Fone - Screen Unlock (Android) . This software is fast, safe, and ensures that you have a better phone experience.
How To Fix OEM Unlock Missing on Vivo Y77t?
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 Y77t 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 Y77t 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!
Still Using Pattern Locks with Vivo Y77t? Tips, Tricks and Helpful Advice
They have been along for a long, long time now – pattern locks – the easiest of all smartphone locks. You just swipe your finger across to create an easy pattern lock of your choosing and that’s it, it becomes your new screen lock. No more remembering tedious digits! So, why have these easy pattern locks become outdated, and why do people still continue to use them? Let’s take a dive and find out all about pattern locks.
Part I: Things To Know About Pattern Locks
The first cellphone locks were 4-digit number locks. Then came 6-digit codes, and even alphanumeric ones. Pattern locks were all the rage a while ago. Though pattern locks continue to be used, they are not considered safe to use any longer. What is all that about? Here’s what you need to know about pattern locks, whether you are a seasoned pattern lock user or not.
I.I: What Are Pattern Locks?
Believe it or not, technology has advanced at such a rapid pace in the last two decades that you’d be forgiven if you don’t know what a pattern lock is, especially if you have only ever used iPhones, or Android phones in just the last few years.
Pattern locks are patterns you create on your smartphone and designate as a smartphone lock/ screen lock. There is a 9-point keypad of sorts, and you start swiping your finger from any point to any point for any which way you feel like. Android 13 allows a minimum of 4 points registered. They are easy to create, and easy to use, hence called easy pattern locks.
Pattern locks have only ever been offered on Android devices and were commonplace a few years ago until they were deemed not secure enough for use by modern standards because they were easy to figure out by malicious actors.
I.II: Popularity and Usage
Pattern lock is a feature unique to Android and has been so since the start. Naturally, it is one of the preferred ways users have come to unlock their Android devices over the years. Even though modern Android smartphones come with fingerprint recognition and face recognition technologies, there exists a large subset of users still addicted to and acclimatized with the pattern lock feature, opting over fingerprint and face recognition.
There has been, however, research conducted into the safety and security offered by pattern lock in Android.
I.III: Advantages and Drawbacks
Modern smartphones very nearly contain the entirety of our lives; photo memories, video memories, important documents both financial and personal in nature, banking apps, ID and ATM/ credit cards in the “wallet” apps, and whatnot. A smartphone falling into the wrong hands could very nearly be used to devastate the rightful owner, both financially and otherwise. And this is not a claim out of thin air; spyware/ malware/ phishing attacks are on the rise around the world. Locking the smartphone, once considered optional and an unnecessary hassle, is now an absolute must.
Advantages of Pattern Locks
There is no denying that using an easy pattern lock to lock their smartphone seems enough for most users. Swiping your finger across your smartphone to unlock it feels not only cool and futuristic but safer and more secure than remembering and punching in digits. And, for the most part, it is true, given that 4-digit PINs can only have 10,000 unique combinations!
Disadvantages of Pattern Locks
While very easy to use, security researchers and experts have come to agree that the feature is not in the least safe to use, and that is because of how people use the pattern lock feature (discussed in detail below in part II). Some go so far as to say that most pattern locks can be breached in just 5 attempts or less. Imagine that!
What is more, research has found that humans have an uncanny ability to correctly guess a pattern lock simply by viewing the unlocking! The test comprised showing the test subjects videos of users unlocking their phones from different angles and varying distances, and it was found that around 64% of test subjects were able to correctly guess a 6-point pattern lock in one viewing only, and 80% could correctly guess the pattern after just two viewings. By contrast, only 11% were able to correctly deduce a 6-digit PIN after one viewing, and only 27% after viewing twice. This goes to show just how insecure pattern locks are!
Part II: How People Use Pattern Locks
We might wonder how anyone would be able to guess the correct pattern of our device, but believe it or not, it is possible, eerily easily at that! We are all the same humans, after all! You know how people usually set PINs that could be significant dates in their lives? How they get car registration numbers that mean something to them? The same ‘logic’ applies to their setting pattern locks.
At DEFCON 23, Marte Loge, an M.Sc. Computer Science student, presented something that stunned people around the world. She said, “Tell me who you are, and I will tell you your lock pattern.” What followed was an expert presentation outlining and detailing user behaviors around pattern locks.
These are some commonly created pattern locks by people:
- - shapes of alphabets,
- - shapes of numerals,
- - any other easy-to-make, simple shape.
Marte Loge presented the image below, showing how people naturally gravitate towards creating simple shape patterns, in her research.
To further help you see how easy it might be for anyone to guess your pattern, Marte Loge also presented some statistics.
- - 77% of people started their patterns in one of the 4 corners.
- - 44% of Loge’s subjects started their pattern with the first dot, the top-left one. The next number was 15% for the top-right and 14% for the bottom-left.
- - These percentages did not vary much depending on left-handedness or right-handedness.
- - On average, irrespective of gender, people set 5-point patterns, with 4-point patterns being the most common. This means that the number of combinations on average was 7152 for 5-point patterns and a bogglingly low 1624 for 4-point patterns.
The above data makes it amply clear how using an easy pattern lock is actually worse than using a 4-digit PIN, simply because how people are usually using the pattern lock feature.
Part III: Tips For Using More Secure Pattern Locks
Now, we know how hard it is to break habits cemented over years of use, so in case you must at all costs use a pattern lock only, the least you can do is try and change your easy pattern lock to a better, more secure hard pattern lock.
III.I: How to Create More Secure Patterns
Here are some tips to help you create a better, more secure pattern lock for your smartphone.
- - Avoid using any of the corners to start the pattern.
- - Never use your first initial as a pattern.
- - Never use a digit shape as a pattern.
- - You can pass through the same pattern lines multiple times over. This makes it more difficult for someone to guess your pattern correctly.
- - Use all 9 points on the grid while setting the pattern lock! That simple act takes the possible pattern combinations to over 140,000, significantly more than 10,000 for 4-digit PINs, and vastly superior to paltry 1624 for a 4-point easy pattern lock!
III.II: Forgot Your Pattern? Unlock Your Vivo Y77t Without Pattern Lock With Dr.Fone
Supercharged with the information above, you went ahead and changed your easy pattern lock to a hard-to-guess pattern lock. Only problem is, your brain is habituated to that old pattern, and you’ve suddenly forgotten what the new pattern was! Well, worry not; Wondershare Dr.Fone - Screen Unlock (Android) will help you unlock your phone without pattern lock !
Dr.Fone - Screen Unlock (Android)
The Best Tool to Unlock Your Vivo Y77t without Pattern 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.
4,008,669 people have downloaded it
Download the newest version of Dr.Fone from the Wondershare website and launch the app.
Step 1: Go to Toolbox > Screen Unlock and click Android.
Step 2: Click Unlock Android Screen.
Step 3: You will see a list of supported manufacturers on the next screen. Select yours.
Step 4: Now, follow the onscreen guide to prepare your device for screen unlocking.
After completing the process, when the Next button becomes available, click it.
Your device will be successfully unlocked.
Note that this method wipes all data on the Vivo Y77t device. There is no way around it. You may be able to unlock select older Samsung devices without data loss. Check this list for those devices.
Parental Control Software
## Closing WordsPattern locks are outdated and not safe to use an easy pattern lock – there are no two ways about it. As such, our recommendation is to start using a 6-digit PIN along with biometric or face recognition. However, we do understand that sometimes, you simply cannot use biometrics or face recognition. For those instances, we recommend that you use this guide and create a more secure pattern lock for your device. In case you forgot your pattern, there is always Wondershare Dr.Fone – Screen Unlock (Android) to save the day.
- Title: In 2024, 6 Proven Ways to Unlock Vivo Y77t Phone When You Forget the Password
- Author: Peter
- Created at : 2024-07-16 12:02:47
- Updated at : 2024-07-17 12:02:47
- Link: https://android-unlock.techidaily.com/in-2024-6-proven-ways-to-unlock-vivo-y77t-phone-when-you-forget-the-password-by-drfone-android/
- License: This work is licensed under CC BY-NC-SA 4.0.