Can I Bypass a Forgotten Phone Password Of Vivo Y78t?

Screen locks on smartphones are crucial for keeping the data in your phone hidden. Password for phone becomes necessary when you have critical data on your phone. However, there is a downside to it.

Many people forget their screen lock, and that’s normal. That can happen if you accidentally type a new lock screen password incorrectly. Apart from that, there are many other explanations too. In short, you can get locked out of your device, which is a terrible experience. It can waste your time if you need something stored in your phone.

Here we have mentioned solutions to let you bypass your lock screen password. All the solutions mentioned here are safe and will work almost 100% of the time.

Part 1: How Can I Set or Change My password?

• Open the Settings application and tap the Security choice.
• Under Device Security, tap Screen Lock.

• Select a Screen lock option, i.e., Swipe, Example, PIN, Password, etc.

Click here

• When you pick your choice, follow the guidelines on the screen to set it. Enter your screen lock straightaway.
• Then redo your screen lock on the following screen, then, at that point, tap Confirm.

Part 2: 4 Simple Ways to Bypass Your Vivo Y78t Phone Password

1. Google Find My Device

Our first approach to unlocking your device is to do a factory reset. That erases every one of the data on your phone too. You can perform this method if you have your Google account credentials and are ready. However, we want you to back up your data so you can sign once more after the reset and restore a ton of your data.

Since you’re locked out, you will have to utilize a technique to do the reset. The most straightforward way is to utilize Google’s Find My Device site. So, if the Find my Device option feature is enabled on your phone, you can tap the Erase device choice on this page to reset it.

2. Enter Recovery Mode to Hard Reset

If you can’t use the Find my device feature, you’ll have to factory reset physically. To do as such:

• Power your device off.
• Hold the Volume (-) and power keys all the while after the screen goes dark to raise Android’s bootloader menu. This button blend might be different relying on your device model.
• Press the Volume down button two times to feature the Recovery Mode choice. Then, at that point, press the power button to choose it.
• Hold the power button and press the Volume up button to enter this mode.
• Utilize the volume buttons to go to the Wipe data/Factory Reset choice. Continue with the steps to play out a factory reset.

3. Use ADB

This fix isn’t guaranteed to work; if you don’t watch out, it could damage your phone. Therefore, we suggest you back up everything on your Android before proceeding.

If your phone has USB debugging enabled, is connected to a PC, and is not encrypted, follow these steps:

• Connect your device to your PC through a USB connector.
• Open Command Prompt or Terminal window to your ADB installation registry.
• Type in adb shell rm/data/system/gesture.key and click the Enter key.
• Reboot your phone. When you do, the solid lock screen ought to be gone.
• That is not a permanent condition, so reset your PIN or password lock before you reboot your device once more. That’s how you reset password for phone.

4.Dr.Fone-Screen Unlock

If you want to unlock your phone without losing any data, we suggest Dr.Fone-Screen Unlock. Dr.Fone is a professional unlocking tool that can remove all types of screen locks in minutes. Dr.Fone is an all-in-one solution for all your iOS and Android needs. So, if you need a quick solution for your phone, download it now.

Step 1. Connect your Android telephone

Open the tool on your PC and select the “Screen Unlock” tool.

When the entire process is finished, you can access your Android device without entering any PIN and view all your data on the Vivo Y78t device.

Step 2. Select Unlock Android Screen tool

We provide 2 options for you, and to unlock screen, you should select “Unlock Android Screen”.

Step 3. Select device model

There are still 2 buttons to choose, “100% Remove Screen Lock” is for most Android brands, but please back your device up before you pick it.

Check the brands list and make sure your unlock process keeps.

Step 4. Enter into Recovery Mode

Then follow the instructions on the program to get the Android phone into Recovery Mode. Here we take 3 different models of Samsung phones as example. (Note: Processes are different according to different brands).

Recovery Mode in Samsung Phone with Bixby

Recovery Mode in Samsung Phone without Bixby

Recovery Mode in Samsung Phone with Home Button

Click here

Step 5. Instructions to Erase Cache Partition

Steps in Recovery Mode are really important, find the correct options and your locked screen will be removed.

Now it’s a phone everyone can access without password or pattern.

Part 3: How to Back up My Vivo Y78t Easily?

Dr.Fone-Phone Backup

As we all know, unlocking a lock screen password involves a hard reset, which can delete your user data. Therefore, you must back up your files before hard resetting.

There are several tools available to back up your files. You can use Google or your phone manufacturer’s cloud services to back up your file. However, none of them are secure enough. So, we suggest Dr.Fone-Phone Backup have a secure and reliable backup experience. Dr.Fone lets you choose the files you need and back them up. Moreover, you can restore those files to your phone once it gets unlocked.

The Bottom Line

Getting locked out of your phone can be frustrating, especially if you need an important file from it. However, there are solutions to get over this issue and unlock the password for phone. This article contains all you need to unlock your device and return it to be normal. Moreover, if you don’t want to lose your data, give Dr.Fone a try. It is currently the best unlocking and backup tool in the market.

How To Fix OEM Unlock Missing on Vivo Y78t?

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 Y78t device type for screen lock removal.

• Step 3: Select Unlock Android Screen to proceed.

Click here

• 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 Y78t device automatically syncs the correct date.

If you intend to try this method, follow these steps to enable OEM unlock missing or greyed out after an Android update:

• Step 1: Open the Settings app.
• Step 2: Go to System or General management, depending on your Android version.
• Step 3: Tap on Date and Time.
• Step 4: Turn off Automatic date and time.

• Step 5: Tap on Set date and choose the desired older date from the calendar.
• Step 6: Tap on Set time and choose the desired time from the clock.
• Step 7: Tap on Done to save the changes.
• Step 8: Go back to the Developers options and turn off the Auto update system option.

• Step 9: Go to Settings > Software update, then turn off Auto download over Wi-Fi.

This method should enable the OEM unlock missing issue. Otherwise, proceed to the next section for another solution.

Part 5: How To Fix OEM Unlock Missing by Removing SIM Card?

Certain carriers restrict bootloader unlocking on their devices to ensure compatibility and prevent unauthorized modifications. For these phones, unlocking the SIM card becomes crucial before you can toggle the OEM unlock option. Here are the steps to fix the OEM Unlock missing or greyed out using SIM card removal:

• Step 1: Use the SIM ejector tool (often included with your phone) or a small pin to push the tray out.
• Step 2: Go to Settings > General Management > Reset, then select Factory data reset. Enter your PIN or password if needed.

• Step 3: Review the warning and tap Reset to confirm.
• Step 4: Once the reset is complete, your phone will restart. Connect to Wi-Fi when prompted.
• Step 5: Skip any prompts to log in to your Google or email account. Then, repeat the process to open the Developer Options in the previous sections.

Conclusion

Having the OEM Unlock missing or greyed out can leave Android users feeling locked out of customization possibilities. Fortunately, this article has outlined helpful solutions like enabling the Android OEM Unlock missing option via the Developer Options. You can also try other methods above, like adjusting date and time settings or even a sim card removal trick. For those facing forgotten lock screens, we’ve offered guidance on bypassing them using the Dr.Fone - Screen Unlock tool to access the necessary phone settings.

While these methods provide a solid foundation, it’s always wise to research steps specific to your phone model. And never forget – caution is key. If things get technical, don’t hesitate to seek help from online communities or professional repair services.

Tips: Forget your device password and can’t get access to it? No worries as Dr.Fone is here to help you. Download it and start a seamless unlock experience!

How to Unlock a Network Locked Vivo Y78t Phone?

Revolutions in the telecommunication industry have introduced advancements in smartphone features and utilities. The other side of the coin is, however, not as appealing. Thanks to the different carrier services, network locking is the commonest issue of recent mobile launches. Users have reported of Vivo Y78t phones refusing to work with different carriers.

The issue limits the smartphone’s functioning to the specific carrier from whom the Vivo Y78t device is purchased. Consequently, there are annoying connectivity problems that restrict seamless mobile usage. The problem aggravates in geo-restricted regions where the carrier options are quite limited. This scenario puts forward the need for Vivo Y78t network unlock solutions.

Part 1: What Does It Mean When Your Vivo Y78t Phone is Network Locked?

In the simplest words, a network-locked Vivo Y78t phone means that your device has become carrier-specific. It will now work only with the network provider from where the phone was purchased. Another problem is that there is no automatic unlocking even after the expiry of your contract with the carrier service. Having a network-locked Vivo Y78t phone poses undesired connectivity issues.

1. Why is my phone locked to the network carrier?

Smartphones are network locked by carrier services to prevent customers from switching to a different carrier. Reasons for switching can be the availability of better plans, discounts, etc. Another cause of locking the phones to specific carriers is preventing them from theft and unauthorized usage.

2. Is it legal to unlock it?

Unlocking your network-locked phone is legal in every sense. It is however advisable to contact your service provider for addressing the concern. The only downside of unlocking such phones is the loss of device warranty assured at the time of purchase.

Part 2. How to Unlock a Network Locked Vivo Y78t Phone?

When looking for affordable solutions to address the Vivo Y78t SIM unlock task, you can follow the methods discussed below:

Method 1: Use Network Unlock Code

The safest way to unlock a network-locked Vivo Y78t phone is through the network unlock code provided by the carrier service. Here’s what you should do:

1. Contact Your Network Provider

Contact your network provider to receive the network unlock code if you are the actual buyer of the Vivo Y78t device. Your carrier’s customer service will guide you with the Vivo Y78t unlocking process using the code. Drop your worries about the expired contract as that’s not a problem in unlocking your phone.

Listed below are some popular carrier service providers in the USA with the applicable phone models. You can have a look to find out yours:

Carrier Providers	Mobile Phones
Verizon	Vivo Y78t 8, Vivo Y78t 8 Pro
T-Mobile US	Vivo Y78t Nord N10, Vivo Y78t 9
AT & T Mobility	Vivo Y78t 7T, Vivo Y78t Nord N200
Dish Wireless	Vivo Y78t 8, Vivo Y78t Nord N10
US Cellular	Vivo Y78t 8, Vivo Y78t 8 Pro

2. How to Use Your Network Unlock Code

Take the following steps to unlock your Vivo Y78t phone with the network unlock code:

• 1. Shut down your Vivo Y78t smartphone.
• 2. Insert a different carrier’s SIM card into the Vivo Y78t device.
• 3. Power on your Vivo Y78t phone.
• 4. One of the SIM lock/unlock code/ SIM network unlock PIN/NCK prompts will pop up.

Click here

• 5. Enter the network unlock code received from your carrier service provider. The device is unlocked and can work with all GSM network services.

Method 2: With a Third-Party Service

If you don’t wish to use the carrier unlock code, several third-party services can be availed to unlock a network-locked Vivo Y78t device. The UnlockScope application is one such utility to proceed with the process. The tool helps to unlock your network-locked Vivo Y78t phone by sending an unlock code on request. Here’s how you can work with the tool:

Step 1: Download and launch the application on your Vivo Y78t phone.

Step 2: Select the details of brand, phone model, IMEI number, country, and network. Then, enter your email address and agree to the app’s terms and conditions to continue.

Step 3: Click on the ‘Check Availability and Price’ tab; followed by choosing the price and payment method. Finally, tap ‘Go to Payment’.

Step 4: Make the payment and wait for its acknowledgment. You will receive the code once the payment is successful.

Dr.Fone - Screen Unlock (Android)

Unlock Your Vivo Y78t Phone in a Flash

• Pattern, PIN, password, fingerprints & face screen lock can all be unlocked.
• Bypass Android FRP lock without a PIN or Google account.
• Unlock mainstream Android brands like Samsung, Huawei, OnePlus, Xiaomi, etc.

• No tech knowledge required, Simple, click-through, process.

3,981,454 people have downloaded it

Part 3. What to ask Before Signing a New Vivo Y78t Phone Contract?

Signing in a new Vivo Y78t contract has many factors to consider for affordable purchases and consumer safety. When entering into such deals, you should pay head-to-data allowances, upfront costs, price hikes, carrier coverage, roaming charges, contract length, flexibility, etc. A low price is not the only thing that should be taken care of.

Part 4：Bonus Tips: iPhone SIM Unlock to Work on Any Carrier Worldwide

Working with the Dr.Fone - Screen Unlock (iOS) application is advisable to quickly unlock your network-locked iPhone. The tool uses a simple and intuitive method to sort out the issue in just a few simple steps. In addition, the app’s responsive interface guides you at every step of the process and ensures complete information security.

Dr.Fone - Screen Unlock (iOS)

iPhone SIM Unlock to Work on Any Carrier Worldwide

• Support newly released models from iPhone 5S to iPhone X.
• Move to any network operator within minutes aimlessly without data loss.
• You can unlock an iPhone without an R-SIM.
• Compatible with most carriers, T-Mobile, Sprint, Verizon, etc.

3,981,454 people have downloaded it

How to Unlock Network Locked iPhone with Dr.Fone - Screen Unlock (iOS)

To unlock your network-locked iPhone with the aforesaid app, you can take the following steps:

Visit the official Dr.Fone website and download the app to your PC. Install the program by adhering to the on-screen instructions.

Step 1: Launch the app and tap on the ‘Remove SIM Locked’ function in the main interface.

Step 2: Tap ‘Start’ to initiate the authorization and verification process. Next, connect your iPhone to the PC and hit the ‘Confirmed’ button to proceed further.

Step 3: Follow the instructions in the configuration profile sent by Dr.Fone to unlock the iPhone screen. It is necessary to jailbreak your iPhone to remove the SIM lock.

Step 4: Take the following steps for remove all Wi-Fi networks.

Step 5: The following screen displays the prompt window featuring the SIM unlocking process’s progress. After that, you are free to use your choice’s SIM plan and carrier network.

safe & secure

Click here

Click here

Conclusion

Technology has a pivotal influence on today’s high-tech lifestyles, which is rewarding in several ways, but there are glitches too. The latest ones are the network-locked Vivo Y78t devices that have become carrier-specific. When looking for effective solutions to resolve the issue, getting in touch with your service provider is the safest option. You will receive an unlock code to make your device work with different carriers. Another way is to use third-party apps to address the concern. If you want to unlock your iPhone. Searching for a reliable one, you can trust the Dr.Fone - Screen Unlock (iOS) application for a quick and convenient solution.