How to Quickly Fix Bluetooth Not Working on Vivo Y78t

One of the key features of an Android device these days is the Bluetooth technology. This is such an important part of the phone that many of us take for granted, but as soon as the feature stops working, it can cause all kinds of problems.

Fortunately, despite there being many reasons why a problem could occur to your Bluetooth feature, there are also plenty of fixes. Today, we’re going to share with you the complete guide that details everything you need to know to get your Bluetooth up and running once again as quickly as possible.

Let’s get straight into it!

Part 1. About Bluetooth Not Working on Android

Of course, the most common problem to occur with Bluetooth technology in your Vivo Y78t is when it doesn’t connect to the Vivo Y78t device you’re trying to link it to. This could be anything from a Bluetooth headset or headphones, to a portable speaker or even an in-car audio system.

However, the problems don’t stop there. You may have problems with turning your Bluetooth settings on through your actual device. Perhaps the software simply isn’t loading, or maybe the Bluetooth feature keeps turning itself off randomly.

Due to the complicated nature of Bluetooth technology, there could be many reasons as to why your Bluetooth feature is playing up in this way, but that doesn’t mean it can’t be fixed. For the rest of this guide, we’re going to explore the nine need-to-know ways you can fix the Bluetooth problems not working on your Vivo Y78t as quickly as possible.

Part 2. 9 fixes for Bluetooth not working on Android

2.1 One click to fix Android Bluetooth issues due to Android system

Since Bluetooth is an internal technology, this indicates there’s a problem with the software or firmware of your Vivo Y78t. If something’s broken, this means you need to fix it. Fortunately, there’s a quick and easy way to do this using software known as Dr.Fone - System Repair (Android).

Dr.Fone - System Repair (Android) is a powerful Android repair tool which is hailed as many as being on the best software applications in the industry. With all the tools you need to repair your phone not just for Bluetooth errors, but basically any internal firmware problems, this is a one-shot-tool that gets the job done.

Dr.Fone - System Repair (Android)

Android repair tool to fix Bluetooth issues in one click

Can fix most internal software and firmware issues
Trusted by over 50+ million people around the world
Supports over 1,000+ unique Android brands, manufacturers, and devices
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To ensure you have the best experience while using the Dr.Fone - System Repair (Android) software, here’s a complete step-by-step guide on how it works when fixing your Android’s Bluetooth problems.

Step One Make your way over to the Wondershare website and download the Dr.Fone - System Repair (Android) software to either your Mac or Windows computer. Install the downloaded file by following the on-screen instructions. Once installed, open the software, so you’re on the Main Menu.

Step Two Connect your Vivo Y78t to your computer using the USB cable, wait a couple of seconds, and then click the System Repair option. On the Menu on the left, click Android Repair, and then press Start.

Step Three Next, use the drop-down menus to make sure all the information about your specific device is correct, including your device, operating system number, and carrier information. Click Next to confirm your selections.

Step Four When prompted, put your phone into Download Mode needed for repairs. You can do this by following the on-screen instructions which will depend on which device you have and the available buttons.

Step Five The software will now begin the repair process. This will happen automatically, and all you’ll need to do is make sure your device doesn’t disconnect during this process, and your computer doesn’t turn off.

When the repair process has been completed, you’ll receive the screen below, which means you can try again if the process didn’t work, or you can disconnect your Vivo Y78t and start using it and your Bluetooth features.

2.2 Restart Android and turn on Bluetooth again

One of the most common solutions in technology is simply to turn it on and off again, which is the case to happen here. By restarting your device, you can clear out any problems you may be suffering from to help it get up and running again. Here’s how;

Turn your Vivo Y78t off by holding down the Power button
Wait for several minutes and then turn your phone on again
Wait for your phone to completely power up, so you’re on the Main Menu
Navigate Settings > Bluetooth and then enable the setting
Try to connect your Bluetooth device to what you were trying to do before

2.3 Clear the Bluetooth cache

Every service on your Vivo Y78t using a feature called a cache. This is where information is stored to help the feature run properly and give you the best experience. However, over time this can get messy and can cause problems with your Bluetooth feature.

By clearing the cache, you can restart the service and hopefully clear up any issues or problems you may be experiencing.

On your phone, navigate Settings > Application Manager, and you’ll see all the apps and services on your phone. Locate and select the Bluetooth service.
Select the Storage option
Tap the Clear Cache option
Go back of the Menu and restart your phone
Now turn your Bluetooth feature on and turn connecting it to your preferred device

2.4 Remove paired devices

Sometimes, you may have a problem with the Vivo Y78t device you’re trying to connect to via Bluetooth, especially if this is a device you’ve updated. To counter and repair this, you’re going to need to remove the paired devices saved with your device and then reconnect them.

Here’s how;

From the Main Menu of your Vivo Y78t, head to Settings > Bluetooth > Connected Devices.
Turn Bluetooth on, and you’ll see all the connections your Vivo Y78t is paired with
Go through these settings and remove/delete/forget every connection on your device
Now when you go to connect to a device using Bluetooth, repair the Vivo Y78t device, enter the passcode, and use a fresh paired connection.

2.5 Use Bluetooth in safe mode

If you’re having problems with your connection and paired devices, sometimes you may have conflicting software faults in your device that are causing the problems. If this is the case, you’ll need to boot your Vivo Y78t in Safe Mode.

This is an operating state in which your phone will run the bare minimum services it needs to perform. If your Bluetooth works in Safe Mode, you know you have an app or a service that’s causing the problem.

Here’s how to find out;

Hold the power button down, so the Android power menu turns on
Long-press the power button again and the restart in Safe Mode option will come up
The phone will automatically boot into Safe Mode
Wait a minute on the Main Menu
Now turn on your Bluetooth and connect it to your preferred device

2.6 Turn on the discoverable feature

To ensure your Bluetooth can connect to other devices, it’s important to make sure you’re making your device discoverable to other Bluetooth devices. If it’s hidden, other devices won’t be able to find it, and sometimes it can bug and prevent connections.

Here’s how to turn on your Bluetooth discoverable feature;

From the home screen of your Android, navigate to the Menu> Settings > Bluetooth
Toggle the Bluetooth switch, so it’s on
Under the available settings, tick the box that allows your Bluetooth device to be discoverable
Turn your Bluetooth feature on and connect to the Vivo Y78t device you’re trying to connect too

2.7 Exclude Bluetooth issues of the other device

Sometimes, you might not even have a problem with your Vivo Y78t, but rather the Bluetooth device you’re trying to connect to, whether that’s a Bluetooth speaker, an in-car entertainment system, or any other kind of Bluetooth device.

By testing out another Bluetooth device to see if it will work with your preferred device, you can rule this out from being the issue.

Disconnect your Vivo Y78t from the Bluetooth device and turn your Bluetooth off
Now take another Bluetooth device and connect this to the Vivo Y78t device you’re trying to connect too. This could be another Android device, or even a computer or iOS device
If the new device doesn’t connect to your Bluetooth device, you’ll know there’s a problem with your Bluetooth device, not your Vivo Y78t
If the Vivo Y78t devices connect, you’ll know there’s a problem with your Vivo Y78t

2.8 Place both devices within close proximity

One of the common misconceptions of Bluetooth is just how far the wireless range is of the service. You need to make sure your devices are well and truly close to each other to make sure a stable connection can be formed.

The further away the Vivo Y78t devices are from each other, the less likely the connection will remain secure. As a rule of thumb, Bluetooth can work up to 100 meters, but to play it safe, always try and keep your devices under 50m apart.

2.9 Avoid interference of other Bluetooth sources

The final consideration you’ll want to think about is that Bluetooth radio waves, or wireless waves, can interfere with each other. This means they can bounce off each other or get muddled up and make things confusing from your devices.

With this in mind, you’ll want to make sure you’re limiting the amount of Bluetooth activity in the area where you’re trying to use a device. While uncommon, this could be the problem.

To fix this issue, turn off all the Bluetooth connections in the area. This includes computers, laptops, mobile phones, tablets, and any other Bluetooth devices you may have. Then, try connecting your Vivo Y78t to the Vivo Y78t device you were trying to use. If it works, you know you were experiencing Bluetooth interference.

How To Deal With the Vivo Y78t Screen Black But Still Works?

With the advance of technology over the years, many of us rely on smartphones to communicate, work, and play. As such, it can be pretty concerning when your device begins to act strange like your phone screen suddenly went blank.

Whether you’re using an iPhone or an Android device, you’ll eventually encounter a problematic symptom like this. Therefore, this article will explore what to do when your phone screen goes black. After exploring below, you’ll learn the common causes of why your phone screen went black and how to fix it. Read on below to learn more.

Part 1: Why Did My Vivo Y78t Screen Go Black but Still Works? Common Causes

Experiencing a cell phone blank screen is not exclusive to Android or iOS users. A phone screen not turning on happens all the time due to several factors that may or may not be out of your control. While they can be frustrating, here are some common causes you should know as to why your phone screen went black but still works.

A Drained Battery

The first thing that comes to mind when your phone screen suddenly goes black is you have a drained battery. Even though this is obvious, it’s still important to mention, as this is usually what most people encounter. To fix this problem, plug your smartphone into a charger and wait for your device to turn on again. If it works, then you just prevented a rather annoying experience.

App Troubles

If your phone is working, but the screen is black, there’s also a high probability that you are having an isolated issue with a particular application. An app could be loading something, which often happens for streaming apps such as YouTube, Netflix, Prime, and more, especially if you have slow internet connectivity.

Software Issues

A potential reason why your phone screen went black but still works could be because of your smartphone’s software. This problem suggests that your Vivo Y78t is crashing, potentially freezing your device if not addressed immediately. If this is the cause, then your device is likely experiencing a critical system error, and you should directly try to reboot your phone.

Hardware Problem

If you dropped your phone, there’s a high chance the LCD connectors went loose due to the physical impact. If this happened to you, the phone might be working, but the screen is black due to the LCD cable dislodging. Another issue could be your phone got exposed to extreme temperatures. This can also cause a black screen but your phone is still on.

Part 2: How To Fix Black Screen on Your Phone

Here are four valuable methods you should know on what to do when your phone screen goes black on your iPhone or Android smartphone to get them working again.

Method 1: Force Restart your Android/iOS Smartphone

If your phone screen is black but still works, force restarting it is the easiest way to fix it. The following are the detailed steps for both Android and iOS devices.

How to Force Restart your Android Device

Here is how you force restart an Android device when your phone screen doesn’t turn on.

Step 1: Press and hold the Power and Volume Down buttons simultaneously.

Step 2: Hold the same buttons until your device restarts, and display the phone’s logo.

How to Force Restart your iOS Device

If you own the latest iPhone models, here are the method of restarting it from iPhone 8 up to 14.

Step 1: Press and immediately release Volume Up. Next, press and immediately release Volume Down.

Step 2: Press and hold Sleep/Wake until you see the Apple logo.

Note

If you own an iPhone 7, press and hold the Side button and Volume Down simultaneously until you see the apple logo.

Method 2: Uninstall or Update Outdated Applications

In some cases, your phone screen is black but still works because of installing incompatible apps on your iOS/Android device. If the installed app is frequently crashing, it may be the source of a blank cell phone screen. Uninstall the problem app to see if the black screen disappears or not.

Method 3: Inspect the LCD Connectors

If your phone screen goes black but still works, you should inspect the logic board to the LCD screen to see if it has become disconnected. It is common for smartphones that often get dropped a few times. It’s best to plug the connectors back to regain your screen’s functionality.

However, this requires technical know-how. It’s better to seek help from a professional as you could risk causing more damage to your device if you don’t know what you’re doing.

Method 4: Perform a Factory Reset

If all the methods above did not solve your problem, the last resort you can take is to perform a Factory Reset. This method works on Android and iOS smartphones and erases all your data. It is the quickest way to try to fix why your phone screen went black. Here are the steps.

For Android Users

If you’re on Android, tap Settings > Backup and Reset. Tap on Factory data reset > Delete all to initiate the factory reset.

If you cannot do this, here’s how to perform a factory reset manually using Recovery Mode.

Note

The process of booting into Recovery Mode is not the same across all Android devices and depends on the manufacturer and model of your phone. Refer to your owners manual to see which method is the right one for your Vivo Y78t.

Step 1A: Press and hold the Power button and Volume Down buttons simultaneously and continue holding until the screen starts.

Step 1B: For Android devices with a Home button, press and hold the Home button and the Power button and continue holding until the screen starts.

Step 1C: Press and hold the Power button as well as the Volume Up and Volume Down buttons simultaneously and continue holding until the screen starts.

Step 2: Use the Volume buttons to navigate the choices and select Wipe data/factory reset and confirm your choice with the Power button.

Step 3: Simply wait for the process to complete and wait for your Vivo Y78t to restart automatically.

F****or iOS Users

Step 1: For iOS users, meanwhile, tap Settings > General > Transfer or Reset iPhone.

Step 2: Next, choose Erase All Content and Settings. Check the list of items you want to remove.

Step 3: Tap Continue and enter your iPhone passcode. A message warns you that the process will delete all media and data and reset all settings.

Step 4: Tap Erase iPhone to confirm. You’ll be asked to type in your Apple ID and password if Find My is active. Enter your password and tap Erase.

Part 3: How To Fix Black Screen Phone With an Alternative

If your phone screen went black but still works and doing the methods above did not solve the issue, you can use Wondershare Dr.Fone for iOS and Android as a last resort. It’s one of the most popular smartphone repair tools today, enabling you to fix all kinds of annoying scenarios. These include black screen, boot loop, white screen of death, bricked iOS or Android device, and more.

Key Features

Dr.Fone – System Repair for iOS and Android has fantastic features you can immediately take advantage of. Here are its key features below.

Fix all Android and iOS Problems in Minutes

Dr.Fone – System Repair can fix all kinds of issues on your Android/iOS, such as a black screen, white screen of death, screen freeze, boot loop, or recovery mode. All of this can be done within less than 10 minutes to save you precious time.

Supports up to 1000+ Android Smartphones and the latest iOS

All iOS versions, including the latest iOS 16 and iOS 16 beta, are fully supported by Dr.Fone – System Repair. The app handles all your smartphone issues without data loss to secure your info. On the other hand, if you own an Android, the app supports up to 1000+ Android smartphones, making it highly versatile for Android owners.

Tech Specs

Dr.Fone – System Repair (Android)’s minimum system requirements for your computer are listed below.

Computer OS	Android
Windows 11, 10, 8.1, 8, 7	Android 2.1 and up to the latest

Meanwhile, here are the system requirements for Dr.Fone – System Repair (iOS).

Computer OS	iOS
Windows 11, 10, 8.1, 8, 7	Supports all iOS versions, including the latest iOS 16 and iOS 16 beta
macOS 12, 11, 10.15, 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8

Pros and Cons

If you’re still undecided about Dr.Fone – System Repair, here are its pros and cons.

Pros

Fone – System Repair for iOS and Android has a clutter-free and beginner-friendly user interface. It’s easy to understand and use, so you can start immediately.
Both the iOS and Android versions finish the repair tasks within less than 10 minutes to save you time.

Cons

Each version for each OS is sold separately.
The free version works up to your device’s compatibility. Once you start the repair process, the app will ask you for a valid license key.

How to Fix Black Phone Screen With Dr.Fone – System Repair

Here’s how to fix your phone screen with Dr.Fone – System Repair on iOS/Android.

Step 1: Download and install Dr.Fone – System Repair for iOS or Android. Next, open the program and connect your smartphone.

Step 2A (For iOS): Choose the correct model of your iPhone for the program to be able to download the appropriate firmware package.

Step 2B (For Android): Click Start. On the next window, choose the Brand, Name, Model, Country, and Carrier of your smartphone, then click Next.

Step 3: Follow the on-screen instructions provided on the main program window and wait for the repair process to complete.

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Conclusion

Our increasing reliance on smartphones has led to amazing advancements in new technologies. However, lingering issues such as your phone screen not turning on or your phone screen being black but still working are ongoing problems to many. That’s why learning how to prevent these events is essential to take care of your smartphone.

Doing all the recommended methods above usually solves the case. If the different fixes don’t work for you, Dr.Fone – System Repair for iOS and Android can help resolve all your problems within less than 10 minutes. You can download it for free on Windows and Mac to test it yourself.

9 Quick Fixes to Unfortunately TouchWiz has stopped Of Vivo Y78t

“Unfortunately TouchWiz home has stopped” is the talk of the town due to annoying TouchWiz UI, a front-end user interface developed by Vivo Y78t. Not to mention, the Vivo Y78t has borne a whole lot of heat from its agitated users over the years and the reason is pretty much obvious due to the pre-installed bloatware apps and the theme launch “TouchWiz home”. That not just brutally annoys users and eats up a heck of internal storage space but lags up too often due to low speed and stability. As a result users end up with “Unfortunately TouchWiz home has stopped” and “Unfortunately, TouchWiz has stopped”. Apparently, there are several flaws in the design and functioning of this launcher and hence, Touchwiz keeps stopping or becomes unresponsive.

Part 1: Common scenarios when TouchWiz keeps stopping

Here in this section, we will introduce some scenarios that can be blamed for why TouchWiz is not working. Check out the following points:

More often than not, the TouchWiz keeps stopping after an Android update. When we update our Vivo Y78t device, the old data and cache usually conflicts with TouchWIz thereby cropping up this mess.
When you disable some built-in apps, you might get in trouble with TouchWiz. Doing this sometimes can hamper the TouchWiz operation and raise the “**unfortunately TouchWiz home has stopped**” error message.
Many times installing some third-party apps and widgets can cause this problem. The apps like launchers can be conflicting with TouchWiz home launcher and therefore cease it to work. Also, a glitched widget is responsible for the same i.e. forces stop the TouchWiz.

Part 2: 9 Fixes to “Unfortunately TouchWiz has stopped”

Fix “TouchWiz keeps stopping” by repairing Android system

When your TouchWiz keeps stopping and you aren’t able to proceed further, the best way to handle the situation is to repair the Android system. And the best that can help you to serve the purpose is Dr.Fone - System Repair (Android). It has the ability to fix any sort of Android system issue without any complications. To fix this issue, the tool only takes few minutes of yours and performs smoothly. Moreover, you don’t have to worry if you aren’t tech pro. This tool requires no special technical know-how. Here are the advantages you get with this tool.

Dr.Fone - System Repair (Android)

One click tool to fix “Unfortunately TouchWiz has stopped”

A very easy tool that fixes problems in just one click
Provides full support all day all night as well as offers 7 day money back challenge
Enjoys higher success rate and considered as first tool carrying such amazing functionalities
Able to fix wide variety of Android issues including app crashing, black/white screen of death
Fully secured and no harm regarding any virus infection

3,211,972 people have downloaded it

Step 1: Download the Program

The one-click repairing process begins with downloading Dr.Fone from its official website. When it is downloaded, follow the installation steps. Upon successful installation, launch the tool on your PC.

Step 2: Connect your Vivo Y78t Device

After you open the software, hit on the “System Repair” button from the main interface. With the help of a genuine USB cable, get your Vivo Y78t phone and connect it with the computer.

Step 3: Choose the Tab

Now, from the next screen, you are supposed to choose “Android Repair” tab. It is given on the left panel.

Step 4: Enter Right Information

Please keep your mobile details handy as you will need them in the next window. You will need to enter the correct brand, model, and country name etc. for better detection of your device.

Step 5: Confirm Actions

This process may result in removing your data hence we strongly recommend you to keep a backup of your data.

Tip: You can use Dr.Fone – Phone Backup (Android) to backup your Vivo Y78t device in case you’re wondering how.

Step 6: Take your Device in Download mode

You will get some instructions on your screen to keep your device in Download mode. Follow them according to the Vivo Y78t device you own and hit “Next”. When you do this, the program will detect your device and let you download the latest firmware.

Step 7: Repair Device

Now, when the firmware is downloaded, the program will itself begin to repair your device. Wait and keep the Vivo Y78t device connected until you get the notification for process completion.

Clear the cache data the TouchWiz

Maximum Android devices are designed to deleted cache data upon getting updated to the newest Android system. However, Vivo Y78t stands as an exception in such case. And therefore, many times TouchWiz starts stopping right after upgrading. Thus, due to the collection of cache data, TouchWiz can display error. This calls for removing the cache from TouchWiz and run things smoothly. Here is how to do this:

Tap on “Apps” from the Home screen firstly.
Launch “Settings” afterwards
Look for “Applications” and tap on it followed by “Application Manager”.
When Application Manager gets opened, swipe towards right to get into the “All” screen.
Now, choose “TouchWiz” and tap “Clear Cache”.
Now, tap “Clear Data” followed by “OK”.
Now restart your device.

Please note that this will delete all your Home screens post this method.

Disable Motion & gesture settings

The functions regarding Motions and Gestures can be responsible for why TouchWiz home has stopped in your device. Usually the Vivo Y78t devices running on Android version less than Marshmallow are prone to encountering this issue. Or the Vivo Y78t devices having modest specs often fall prey to the issue. When you disable these settings, you might get out of the problem.

Change the Animation Scale

When you use TouchWiz, it may consume higher memory usage for high amount of graphic maintenance. As a result, the “**unfortunately TouchWiz home has stopped**” error might crop up. Taking this into consideration, you should try reconfiguring the animation scale and get rid of the error. Here’s how:

Clear Cache Partition

In case the above steps didn’t figure out the problem, here is the next tip. This method can be counted as one of the most effective one. Because it is able to fix minor issues in Android devices, we recommend you for “**TouchWiz home has stopped**” issue too. Let us know how you can do it:

Turn off your Vivo Y78t device.
Start pressing and holding “Volume Up” and “Power” buttons simultaneously.
Keep doing this until you see the Android screen. This will take your device into recovery mode.
You will observe some options on the screen. Take help of Volume buttons, scroll down to choose “Wipe Cache Partition”. Press Power button to confirm and the Vivo Y78t device will be rebooted.

Check now if the error is eliminated. If unfortunately not, please try the following solution.

Enable the easy mode

For some users, enabling Easy Mode has been of great assistance. This feature aims to make the user experience more efficient by simply eliminating complex features. The Easy Mode removes those features that confuse the users by messing up the screen. Hence, we suggest you to switch to this mode in order to remove “**TouchWiz not working**” problem. The steps are:

Open “Settings” and go to “Personalization”.
Hit on “Easy Mode” now.

Hope the TouchWiz won’t keep stopping error does not pop up anymore!

Boot your phone to safe mode

Here is the next solution to be followed when TouchWiz keeps stopping. As we already said, third-party apps can cause this issue, booting your device in the Safe mode will disable those apps temporarily. Hence you need to boot your Vivo Y78t device to Safe mode and check if the reason is any third-party app.

Switch off your device to initiate.
Press “Power” button and keep doing this until device’s logo appears on the screen.
When you see logo appearing, instantly release the button and start holding “Volume Down” button.
Keep holding until rebooting finishes.
You will now witness “Safe mode” on the bottom screen. You can now release the button.

Reset Factory settings

If the above method went futile and you’re still at the same place, then factory reset is the next logical step to be taken. We suggest this method because it will take your device to its factory state. As a result, TouchWiz will probably get normal and work perfectly.

Along with this, we would also suggest you go take backup of your data so that you won’t lose any of the personal information from your device after performing factory reset. For your convenience, we have stated the backup steps too in the following guide. Have a look:

Run “Settings’ in your device and go to “Backup & Reset”.
Notice if “Back up my data” is enabled or not. If not, turn it on and create backup.
Now, scroll for “Factory Data reset” option and confirm it by clicking “Reset Phone”.

Wait a few minutes and your device will reboot.

Install a new launcher to replace TouchWiz

We believe that you will find the above methods helpful. However, if still in case your TouchWiz is not working, we advice you that you should install a new theme launcher in your device. It will be a wise option to ditch TouchWiz in such scenario rather than tolerating the problem. Hope this advice will help you.

Fix Guide

How to Quickly Fix Bluetooth Not Working on Vivo Y78t | Dr.fone