Why Is My Vivo Y77t Offline? Troubleshooting Guide

Ever had your Vivo Y77t claim it’s offline, leaving you scratching your head about where it went wrong? We get it; it’s confusing. That’s why this article is here to untangle the mystery.

In the following sections, we’re diving into the “why is My Vivo Y77t offline” dilemma that many Android users face. We’ll break down the possible reasons behind this common issue and guide you through simple steps on how to fix it. By the end of the article, you’ll be able to get back to smooth internet surfing on your Vivo Y77t. Let’s get started.

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Part 1: Why Does My Vivo Y77t Say Offline?

When you encounter the “offline” error message, it can disrupt your usual smartphone activities. Suddenly, you find yourself unable to browse the internet, send or receive emails, or stay connected through instant messages.

It’s a frustrating scenario, but let’s break down the potential reasons why your phone might be displaying this offline status:

1. Enabling Airplane mode

Why is My Vivo Y77t showing offline? Well, one common culprit behind the “offline” message is the accidental activation of Airplane Mode on your Vivo Y77t. When Airplane Mode is enabled, it disconnects your phone from all wireless networks, rendering it unable to connect to the internet or cellular networks.

2. Internet connection issues

Fluctuations in your signal strength or unexpected data loss can also be the culprit behind the “Why is My Vivo Y77t offline?” problem. Android devices rely on stable internet connections, and disruptions, whether temporary or prolonged, can lead to this error.

3. Glitches or bugs

Sometimes, glitches or bugs in Google apps installed on your Vivo Y77t can mislead it into thinking it’s offline. Google Play Services or other related applications may encounter issues, causing the phone to display an “offline” message.

4. Firewall restrictions

In some cases, a firewall on your Vivo Y77t might be overly restrictive, preventing the Vivo Y77t device from establishing a connection to the internet. This security measure, intended to protect your device, can sometimes go overboard and disrupt normal online functionality.

Now, you have understood the potential causes as the first step toward resolving the issue. Next, we’ll guide you through the process of troubleshooting and getting your Vivo Y77t back online.

Part 2: How To Fix “Phone Offline” With Internet Connection Problem

Now that we’ve figured out why your phone says it’s offline, let’s tackle the issue head-on. If you’re facing problems like downloads that won’t start, Google Play stuck on “Loading…,” or web pages refusing to load, chances are it’s an internet connection issue causing the problem.

Here are some easy solutions to get your connection back.

Solution 1: Change connection to mobile data

Switching to mobile data can be a quick fix if your Wi-Fi is acting up. It ensures a change in your connection source and might resolve the “Phone offline” issue. Follow these easy steps to change your connection to mobile data:

• Step 1: Swipe down from the top of your screen to access the Quick Settings menu.
• Step 2: Tap the Wi-Fi icon to turn off the Wi-Fi connection.
• Step 3: Tap Mobile Data to turn it on.

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Solution 2: On and off Airplane mode

Airplane Mode can sometimes cause connectivity confusion. Turning it off and on essentially resets your phone’s wireless connections, which might resolve the offline issue.

How to on and off Airplane mode on Android:

• Step 1: Swipe down from the top of your screen to access the Quick Settings menu.
• Step 2: Look for the Airplane Mode icon and tap the icon to turn on Airplane Mode.
• Step 3: Wait a few seconds, then tap it again to turn off the Airplane Mode. Now, check if your phone is now online.

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Solution 3: Reset network settings

Resetting network settings can help eliminate any configuration glitches that might be causing the phone offline problem. It’s like giving your phone’s connection settings a fresh start.

To reset your network settings, the steps may differ depending on the phone model you are using. However, you can generally do so by looking for the “Network” settings.

• Step 1: Open your phone’s Settings > Connection & sharing.
• Step 2: Find and select “Reset Wi-Fi, mobile networks, and Bluetooth.”
• Step 3: Tap “Reset Settings” and confirm the action and allow your phone to reset.
• Step 4: Reconnect to your Wi-Fi and check if the issue persists.

Solution 4: Restart your Wi-Fi router

Sometimes, the problem might not be with your phone but rather with the Wi-Fi router. Restarting it can refresh the connection and potentially resolve the connectivity problem.

How to restart your Wi-Fi router:

• Step 1: Locate your Wi-Fi router.
• Step 2: Turn off the router using the power button or unplug it.
• Step 3: Wait for about 10–15 seconds before plugging the router back in or turning it on.
• Step 4: Allow the router to restart and establish a connection. Then, check if your phone still shows the “Phone Offline” message.

These solutions should cover the most common connectivity issues. If the problem persists, we’ll explore further steps in the following sections.

Part 3: How To Fix “Phone Offline” Despite Having an Internet Connection

Ever found it odd to receive the frustrating offline error message when you’re sure your internet connection is up and running? If you’ve double-checked your internet connection and your phone still says it’s offline, the issue may lie within your browser, apps, or device settings.

In this part, we’ll answer the question “**Why does My Vivo Y77t say offline android?**” despite a seemingly functional internet connection. Then, let’s see other solutions on how to get your device back to its online, fully functional self.

Solution 1: Clear Google Chrome’s cache and data

Sometimes, the answer to “Why is my Android phone offline” can be attributed to a buildup of corrupted or outdated data in your browser’s cache. Clearing the cache and data for Google Chrome can resolve this issue, allowing for a fresh start and potentially eliminating the offline status.

How to clear your browser’s cache and data on Android:

• Step 1: Open the Settings > Apps > Manage Apps.
• Step 2: Locate and tap “Google Chrome” or your preferred browser in the list of installed apps.
• Step 3: Tap “Storage” and select “Clear Cache” to remove temporary files.
• Step 4: Choose “Clear Data” to delete app data. Confirm the action if prompted.

Now, restart Google Chrome and check if the offline error persists.

Solution 2: Re-install Google Chrome

If clearing the cache and data didn’t solve the offline issue, reinstalling Google Chrome can be the next step. A fresh installation can eliminate any underlying glitches or corrupted files that might be causing the persistent offline status.

How to re-install Google Chrome:

• Step 1: Visit the Google Play Store and search for Google Chrome.
• Step 2: Tap “Uninstall” to remove the app from your device.
• Step 3: Wait until it has finished uninstalling your app. Then, tap “Install” to start reinstalling the app.
• Step 4: Once the installation is complete, open Google Chrome and check if the offline error persists while browsing.

Solution 3: Repair the system to fix the phone showing offline

When persistent offline issues seem deeply rooted in your device’s system, a comprehensive system repair may be the solution. Wondershare Dr. Fone’s system repair tool is designed to address a range of system problems, providing a reliable way to fix any problem you have with your phone.

With Dr. Fone’s system repair tool, you can diagnose and resolve “Why is My Vivo Y77t offline on Android,” ensuring a smooth and functional Android experience.

Key Features:

• Comprehensive system repair for any devices
• User-friendly interface
• Efficient problem diagnosis

How to use Dr. Fone’s system repair tool:

• Step 1: Open Dr.Fone’s system repair tool

Start by launching Wondershare Dr.Fone on your computer. Go to the Toolbox section and connect your Vivo Y77t. Choose System Repair and pick Android as your device type.

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• Step 2: Start the repair

Click Start on the new screen to kick off the repair. Since you’re dealing with an offline connection issue on Android, select System Damage.

• Step 3: Confirm your device details

The platform will detect your Vivo Y77t’s brand. Confirm the Name, Model, Country, and Carrier. If your device is unlocked, choose OPEN in the Carrier section. Agree to the warning, click Next, and proceed with the repair.

• Step 4: Download firmware.

Follow the instructions to put your Vivo Y77t into Download Mode. Once in Download Mode, you will start downloading the firmware.

• Step 5: Confirm Installation

Remember, the repair may erase data. It’s advisable to back up your data first before starting the repair. Enter “000000” to confirm the repair process, shown by a progress bar. Click Done once it is completed and see if your Android is back online.

Conclusion

Dealing with the “Phone Offline” hiccup on your Vivo Y77t can be a real headache. But fear not – we’ve covered a range of solutions to get you back online smoothly. From troubleshooting internet connection problems to addressing browser and app-related glitches, the solutions provided in this guide are designed to cater to a variety of scenarios. If you find it troublesome to try solutions one by one, then we recommend using Dr.Fone directly which is a full toolkit for your phone and can help resolve most device glitches one-off.

Remember, technology can sometimes be tricky. But with patience and the right guidance, you can overcome these challenges.

Vivo Y77t Camera Not Working Unexpected Error? Fix It Now

For all its glory and goodness, the Android OS often has its users pulling their hair in frustration at just how buggy the OS can be at times. So, if you’re having one of those days today, we are here to help. Camera app is one of the most used apps on smartphones today. People only launch the app when they want to take a photo, for everything else there’s a dedicated photo gallery app. What happens when you launch the camera app only to realize it threw an error and you missed your photo moment? Don’t throw the phone, not yet. Let us help you out.

Part I: Why Is Android Camera Not Working?

There are a few reasons why the camera app is not working on your Vivo Y77t.

Low Memory

Camera app does rely heavily on system resources, so in case you have too many apps open and for some reason the OS is not able to manage the resources appropriately for the camera app to function as it should, you will get a camera error.

Low Storage

The camera app needs storage space to save the photos it takes. So, in case your phone is running low on storage space, the camera app would likely malfunction as it would have no way to store the photos it would be taking.

General Bugs And Glitches

OS bugs and general glitches within the OS and the camera app can cause camera not working issue anytime during everyday operation. This is part and parcel of any technology.

Hardware Issues

In the rarest cases, there might have developed an actual hardware issue with the camera system on your Vivo Y77t. The likely culprit is misuse and abuse, such as a dropped phone or maybe the phone was too hot for extended periods of time, causing hardware issues.

Part II: How To Fix Android Camera Not Working Issue?

So, how to get the Android camera not working problem solved? There are a few ways you can try fixing the camera not working issue on your Vivo Y77t right where you are, without needing to take the Vivo Y77t device to the manufacturer’s service center.

II.I: Restart The Handset

One of the first things to do any time an app or your phone or tablet does not work like it should, restarting the Vivo Y77t device refreshes everything just enough to resolve most commonly occurring issues.

Use the power button on your smartphone to restart your Android handset and see if this resolves the issue.

II.II: Close And Relaunch The Camera App

If the camera app (or any app for that matter) has been in the background for a while and then it is brought to the foreground, there are always chances of it crashing for any reason, or not working as expected. So, closing the app completely and relaunching it is recommended.

Step 1: Launch the app switcher on your specific Android device the way your device manufacturer suggests you to. Usually, it is a swipe up and hold gesture to get into the app switcher.

Step 2: Next, you can choose to close just the camera app or, better yet, close all apps by tapping the Close All button. Flicking any app upwards (quick upward swipe) is how you close an app. If there is no Close All button anywhere, repeat the gesture for all open apps.

II.III: Check App Permissions

These days, thanks to strides in the privacy initiatives, apps need permissions before they can function the way they do. Most of the times, apps such as camera do have the necessary permissions, but sometimes it is possible that the permissions are set incorrectly. To check if the camera app has the requisite permissions, do the following:

Step 1: Go to Settings > Apps > Camera > Permissions.

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Step 2: Tap Camera.

Step 3: See if the selected option is Allow Only While Using This App. If not, select it.

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II.IV: Clear The Camera App Cache

Clearing the camera app cache is sometimes helpful. To do that:

Step 1: Go to Settings > Apps > Camera and tap Storage Usage.

Step 2: Tap Clear Cache.

II.V: Clear The Photo Gallery App Cache

The camera app is closely tied to the photo gallery app that comes baked in into Android OS. That is because photos that the camera app takes are stored in the photo gallery app. Consequently, if there were any issues in the photo gallery app, that could lead to the camera app not working on Android problem. Here’s how to clear the photo gallery app cache:

Step 1: Go to Settings > Apps > Photos > Storage Usage.

Step 2: Tap Clear Cache.

II.VI: Check For App Updates

This does not happen always, but sometimes, with known bugs and issues, there may be an update released that fixes those bugs and issues that prevent some users from using a given app reliably. Checking for updates is a good step to make sure that your camera app is updated to the latest version possible.

Step 1: Go to Play Store and tap your profile picture on the right.

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Step 2: Tap Manage Apps and Device.

Step 3: If there are updates available, Tap Update All to update all apps.

II.VII: Cool The Phone Down

We do not realize the immense power that is packed into the thin smartphone form factor these days. If you have been using the phone to video chat for a while now, you might not realize that the phone has become hot, especially if you are using a desk stand. Same for shooting high-resolution videos; the phone does get quite hot shooting high-resolution videos.

If this is the case, close all apps and let the phone cool down. You might even want to shut the phone off to help cool it faster.

II.VIII: Nudge The Camera System

You may want to tap your camera system (the lenses and surrounding area) gently to see if that gets the camera working. In case it did, this is indicative of a hardware issue, and you should get it checked at the service center at your earliest convenience.

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II.IX: Fix Android Camera Not Working Issue In One Click (With Dr.Fone)

Now, if the above fixes have not worked, you might want to repair your Android OS once before you make that appointment with the service centre. And, we have just the app to help you fix your camera not working on Android problem quickly.

Wondershare Dr.Fone is a multi-module app that works on both Windows and macOS and is the only app you will ever need to resolve nearly all of your smartphone and tablet issues that you are likely to encounter. Need to take backups? Dr.Fone Phone Backup has you covered with the ability to take and restore even selective backups, and to any location such as your computer or an external disk as well. Want to transfer WhatsApp chats to a new phone? Use WhatsApp Transfer to do just that! Bought a new phone? Use Phone Transfer to transfer contents from old phone to new, and then use Dr.Fone Data Eraser to securely wipe your old phone before giving it away!

Today, we will use Dr.Fone’s System Repair (Android) module to fix Android camera not working issue quickly.

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Step 1: Launch Dr.Fone app on your PC or Mac.

Step 2: Click System Repair module and then Android.

Step 3: For now, don’t bother with the scenarios given and click Start to go to the next screen.

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Step 4: Your Android device will be detected by Dr.Fone. If anything seems incorrect, use the dropdown options to change it, and click Next.

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Step 5: Your phone needs to be put into Download mode before it can be repaired. Follow the instructions shown onscreen and click Next.

Step 6: Dr.Fone automatically downloads the most recent firmware for your device and when it is ready, waits for your input. Click Fix Now to start the repair process.

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Step 7: You will need to enter a 6-digit code (digit zero, six times – 000000) to confirm and begin the repair process.

When the repair is complete, Dr.Fone shows the final screen as below:

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Conclusion

The camera app on your smartphone is one of the most important apps you use. This is not a game; this is an app that makes previous memories possible for you. So, when you get any of those incorrigible errors that are impossible to make sense of, what do you do? This guide gives you 9 fixes to fix Android camera not working error quickly and easily.

Reliable User Guide to Fix Vivo Y77t Running Slow and Freezing

Android smartphones have opened a lot of doors for their users. They continue to evolve year after year with the hope of giving the world a wonderful digital experience. So far, we can all agree that they’re going the extra mile and doing a really great job. Android phones today are all packed with supreme capabilities that are beneficial to everyone.

However, Android phones are still not close to perfect. They also act up sometimes and cause a stir. Some users have observed that the Android phone is running slow and freezing over time. There can be many potential reasons why Android phone runs slow suddenly. But it doesn’t mean it cannot be restored at all to its original state and function.

In this article, we will review the details of this Android phone issue. We’ll provide solutions you can try if you ever get caught in the same problem. Continue reading to learn more.

Understanding the Specs That Make Android Phones Run Fast

The issue of Android phone running slow and freezing is not limited to old devices only. The same problem has also been observed in newly purchased units. The roots of this unfortunate occurrence vary from one user to another. It depends on different elements, from external factors like users’ handling of the Vivo Y77t device to internal factors such as its capabilities. To understand it more, below are some Android phone specifications related to the Vivo Y77t device’s overall performance and speed.

The CPU Core Count

Unlike before, Android phones today are equipped with several cores. Each of them has the ability to execute a process alone. Therefore, the Vivo Y77t device can handle two or more tasks at once without compromising the quality of its performance. If your Vivo Y77t contains more CPU core, its performance surely be more powerful and speedy.

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The CPU Clock Speed

Simply put, clock speed is basically the speed at which the CPU cores can carry out a cycle in a second. A faster clock speed definitely translates into the Vivo Y77t device’s higher performance. For instance, an octa-core Android phone with a one GHz per second clock speed is a decent device. But it’s less powerful than a device with the same number of cores but runs at two GHz per second.

Random Access Memory

In a simple language, Random Access Memory (RAM) temporarily stores the data from apps that are currently running. Smartphones can be more flexible with multi-tasking if their RAM has enough space. So if you’re among these users who perform multiple tasks simultaneously, you better choose a device with more RAM.

Internal Storage

The mobile applications installed on your smartphones are directly related to internal storage. The apps save their data every time, so they behave strangely when the Vivo Y77t device runs out of storage. If you’re using heavy mobile applications, it’s best to opt for smartphones with huge internal storage.

Reasons Why My Vivo Y77t is Running Slow

It’s not really hard to tell why your Vivo Y77t is slow because it’s apparently a common issue among users. But don’t worry. Most of the time, the problem is not a major concern. Here are some scenarios that may slow down your Vivo Y77ts.

Overloading Background Processes

It’s great to have an Android phone that can flawlessly multi-task. However, not all units can handle that well. As mentioned earlier, it depends on the CPU core count and the core’s clock speed. If your Vivo Y77t is running slow and freezing, many processes may be happening at the same time. Your device’s cores and clock speed are potentially incapable of executing such demands.

Your Phone is Running Out of Storage

Mobile apps need to save data on your phone. They perform the tasks based on the data stored on the Vivo Y77t device. So if your Vivo Y77t is slow, it’s possible that your device is already running out of storage. Each app has its own storage requirement. If your phone goes below that, the app will surely crash and not work.

Animation Speed is Way Too Slow

You can modify the Vivo Y77t device’s animation type and speed on your Vivo Y77t via the developer’s option. However, altering its default settings can sometimes make the Android phone run slow. If the speed is set slower, more delays are added to the animation. Hence, it takes a while for Your Vivo Y77t to launch an app or complete a certain process.

You’re Using an Outdated Android Version

If your Vivo Y77t is running slow and freezing, the Vivo Y77t device’s software is probably outdated. The mobile apps installed on your device are lagging or crashing because they’re no longer compatible with the OS. It happens most of the time. Hence, always watch out for OS updates.

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Your Phone is Experiencing Some System Issues

Operating systems and device software serve as the main component of all smartphones. Sometimes, it runs into inevitable problems caused by computer bugs and other glitches. When it happens, the Vivo Y77t device’s overall performance is affected. So that can be the reason why sometimes your Vivo Y77t is running slow and freezing.

Your Internet Connection is Unstable

Of course, a slow internet connection can make the Android phone runs slow too. Most apps today rely heavily on the internet to execute some tasks like communicating and streaming. So don’t panic when your Vivo Y77t is running slow and freezing. It’s possible that your internet connection is messing up with you.

What to Do When My Vivo Y77t Lags?

It’s not as bad as the black screen of death when the Android phone runs slow. However, it can still cause some delays and inconvenience for users. So it’s really important to take action when you notice some anomalies with its speed and performance. Below are some remedies that can help you get rid of this issue.

Solution 1: Reboot Your Phone

Sometimes, minor bugs can give your device a hard time. It can be the reason why your Vivo Y77t is running slow and freezing. If that’s the case, rebooting your phone might help a lot. Here’s how to do it.

• Step 1: For seven seconds or more, hold the Power and the Volume Down button together.

• Step 2: Several options will manifest on the screen. From there, click Restart. Wait until your device completely shuts off and restarts again.

Solution 2: Uninstall the Unused Apps to Free Up Some Storage

If your Vivo Y77t is running slow and freezing, it’s likely because you’re running out of internal storage. You may uninstall the apps you rarely use to free up some space. Here’s how to do it.

• Step 1: On your home screen, find the app you wish to uninstall. Hold its icon until an option list appears.
• Step 2: Click Uninstall.

• Step 3: Click Ok if it asks you to confirm the action.

Wait until the app icon disappears from the home screen.

Solution 3: Set the Animation Speed a Little Faster

Altering the animation speed is not that dangerous. However, it can sometimes interfere with the Vivo Y77t device’s smoothness if set too slow. If your Vivo Y77t is running slow and freezing after modifying this setting, try to re-adjust it a little faster. Here’s how to do it.

Initiate the following steps first to enable the developers option on your device. Skip this if you have already activated the developers option:

• Step 1: Go to Settings.
• Step 2: Find the About Phone option. Click on it.

• Step 3: Find the Build Number. And then click on it seven times.
• Step 4: Enter your lock screen passcode if necessary.

Follow these steps to adjust the animation speed:

• Step 1: Tap Settings from your home screen.
• Step 2: From the given options, find and click Systems.
• Step 3: Click Developers options.
• Step 4: Under the Drawing section, you’ll find the following animation scale settings: Window Animation Scale, Transition Animation Scale, and Animator Duration Scale. Adjust the speed of these three options to 0.5x.

Solution 4: Update Your Phone to the Latest Android Version

It’s always recommended to update your phone to the latest Android version. Aside from repairs to some system errors, it also keeps your phone compatible with mobile apps. An outdated operating system can be the reason why your Vivo Y77t runs slow, and the apps are freezing. Don’t worry. It’s very easy to perform. Here’s how to do it.

• Step 1: First, ensure your internet connection is strong and stable to avoid unwanted interruptions.
• Step 2: Go to Settings.
• Step 3: Click About Phone.
• Step 4: Click Check Now for Update. If there’s new software available, it will automatically appear on the screen.
• Step 5: Click Install Now. Depending on your device, it will restart itself after the installation process.

Solution 5: Reset Your Vivo Y77t to Factory Settings

One way to restore the original performance of your Vivo Y77t is to revert it back to factory settings. It deletes all the phone’s data and adjusts the settings to default. Most of the time, this procedure works magic. It fixes numerous issues, including the Android phone that’s slow and constantly freezing. But ensure your phone has already been backed up before commencing this step. You may use Wondershare Dr.Fone to help you back up and secure your files.

Here’s how to back up your Vivo Y77t using Wondershare Dr.Fone:

• Step 1: Download Wondershare Dr.Fone from its official website. And then install it on your desktop.
• Step 2: Launch the application on your computer.
• Step 3: After it fully loads, connect your Vivo Y77t to your computer.
• Step 4: From the main dashboard, find and click Phone Backup. Ensure your device is in USB Debugging mode.

Step 5: Check the files or data you wish to back up. Right after, click Backup.

Here’s how to reset your Vivo Y77t to factory settings:

• Step 1: Go to Settings.
• Step 2: Click System.
• Step 3: Click Reset Options.
• Step 4: Click Erase All Data (Factory Reset).
• Step 5: Your Android phone will inform you about the data that will be deleted from this procedure. From there, click Reset Phone.
• Step 6: Your Android device will ask you to confirm the procedure. From there, click Erase Everything.

Solution 6: Fix the System Issue Using Wondershare Dr.Fone

The device’s operating system may sometimes run into unexpected problems. That can make your Vivo Y77t performs slow. System issue is not a terrifying scenario at all. Thanks to Wondershare Dr.Fone, which provides instant repair to this kind of mobile problem. Here’s how to use it in easy steps.

• Step 1: Launch the Wondershare Dr.Fone application on your desktop. And then connect your Vivo Y77t to your computer.
• Step 2: Click System Repair from the main dashboard or Toolbox section.

• Step 3: Click Android.

• Step 4: Wondershare Dr.Fone will give you a list of the Android problems that this procedure will fix. From there, click Start.

• Step 5: Wondershare Dr.Fone will ask you to confirm your device details. Review the listed details for Brand, Name, Model, Country, and Carrier. Amend them if necessary. Tick the checkbox beside the Note if you agree to the terms. Lastly, click Next to proceed.

• Step 6: At this point, you need to put your device into Download Mode. Power off your device. And then hold these three buttons altogether: Volume Down, Home (or Bixby if you’re using a newer model), and Power buttons. Finally, press the Volume Up button.

• Step 7: Wondershare Dr.Fone will automatically download the firmware that matches your device’s specifications. Wait until the process has been completed.

• Step 8: Thereafter, the details about the newly downloaded firmware package will be displayed on the screen. From there, click Fix Now.

• Step 9:  Before initiating the installation process, Wondershare Dr.Fone will ask you to review and confirm the firmware details. It will also let you know that this procedure will erase the phone’s data. If you agree to the terms, enter 000000 into the input box and click Confirm.


• Step 10: Wait while Wondershare Dr.Fone installs the new firmware to your device.

• Step 11: A notification will immediately appear after installing the new firmware. Click Done if your phone starts normally. Otherwise, click Try Again to repeat the process.

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Conclusion

Android phone is capable of performing lots of stuff. It can assist you in both your personal and professional tasks. But if it’s sluggish and doesn’t execute optimally, the good things it promises all go down the drain. So if you notice that your Vivo Y77t is running slow and freezing, act fast to resolve the issue. Wondershare Dr.Fone can be of great help in this kind of situation. It’s an all-in-one mobile solution that can assist you with system repair, phone backup, data recovery, and a lot more.