How to Fix Android App Not Installed Error on Vivo Y77t Quickly?

App not installed on Android is no more an unknown Error Code during Application installation as many people experience it on a day-to-day basis. An “Application not installed” error message usually pops up when you are trying to download and install an App with a .apk file extension from somewhere other than the Google Play Store. The error is very confusing at first but makes sense when you realize that this unknown Error Code during Application installation is neither a software issue nor a hardware problem. It is a direct outcome of what you do with your device. Yes, you heard that right. Your faulty actions can cause Android App not installed error.

What to do when trying to install the Android APK it says “app not installed”? It is terrible that you can’t install App on your device. But in this article, you will know more about the causes behind this error and the best ways to fix it, read on, here is all you need to know.

Part 1: Common reasons for the “Android App not installed” error

You may ask: Why can’t I download apps on my Vivo Y77t? Understanding the underlying causes of the “Android App Not Installed” error is crucial for resolving the issue effectively. So, what are the reasons for Android App not installed error? Given below are a few reasons:

1. Insufficient storage

Android software and if data such as photos, videos, music, messages, apps, contacts, emails, etc are stored in the internal memory there is not adequate storage left for another App, leading to Android App not installed error.

2. Corrupted/Contaminated App file

When you do not download Apps from the Play Store and choose another platform to do so, App files are usually corrupted and hence cannot be installed on your device smoothly. You should be doubly sure of the source from where you download an App, check its extension name, and make an effort not to install contained files.

3. SD Card not mounted in the Vivo Y77t device

At times your phone could be connected to your PC or another electronic device that can access the SD Card from your device. In such situations when you install an App and choose to save it to your SD Card, you will see Android App not installed error because the App cannot find the SD card as it is not mounted in your device.

4. Storage location

You must be aware that certain Apps work their best when stored in the Vivo Y77t device’s internal memory, whereas others need to be located on an SD Card. If you do not save the App in an appropriate location, you will find that the App isn’t installed because of an unknown Error Code.

5. Corrupt storage

Corrupted storage, especially a corrupted SD Card, is known to cause the Android App isn’t installed error. Even the internal storage can get clogged due to unnecessary and unwanted data, some of which might contain an element that disturbs the storage location. Take this issue seriously as a corrupted SD Card and even clogged up internal memory can put your device in danger.

6. Application Permission

Software operations running in the background and App Permission are not new concepts. Such errors can also cause the Unknown Error Code during App installation.

7. Incorrect file

If you already have an App installed but download another variant of it having a distinct signed or unsigned certificate can also make the Android App not installed error pop-up. This sounds technical, but this and all the other reasons listed above can be tackled by you.

The Unknown Error Code during Application installation can occur due to any one or more of the reasons stated above. So read them carefully and understand them well to avoid such glitches in the future.

Part 2: One-click to fix App not installed on Android error

So App not installed on your Vivo Y77t or tablet? The most horrible part is that this issue may come out of the corruption in the system files. In this situation, Android apps won’t be installed no matter what measures you take. Android system repair is the only effective solution to deal with this issue.

Android system repair used to require high technical skills. But most of the users know little about technical things. Well, worry not! Dr.Fone - System Repair (Android) allows you to repair Android easily, that is, complete the fix with just one click.

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Note: Getting your Android system repaired may erase the existing device data. It is recommended that you should back up your Android data before starting the Android repair.

The following steps illustrate how to fix the “Android App not installed” error in one click:

Install Dr.Fone on your Windows. After that, launch it, and click “System Repair”. Connect your Android to the computer.

Select the “Android” option and click “Start”.

Select device information, such as brand, name, model, country, etc., from each field, and type “Next”.

Follow the on-screen instructions to boot your Android in download mode, and allow the tool to download the firmware to your device.

After the firmware is downloaded, the tool will start to repair your Android, hereby fixing the “Android App not installed” error.

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Part 3: How to fix App not installed error on Android

We understand that it can be a tricky situation to be in when Android App not installed error pops up, but what if we tell you can get rid of it in easy and simple steps? Yes, there is!

#1. Delete unnecessary files/Apps

Insufficient storage can prevent the app from being installed. Make some storage space on your device by cleaning unwanted data and deleting extra media and other files. You can also get rid of heavy Apps by:

Visiting “Settings” on your device. Then select “Manage apps”, “Application Manager” or “Apps” (varies based on device model or version) from the list of options before you.

Now select the App you wish to uninstall and wait for the App Info screen to open, then click on “Uninstall” as shown in the screenshot.

You can also uninstall the unnecessary application on the home screen, just long-press the app you want to uninstall until you see the “uninstall” icon. Click “Uninstall”, then, you need to click “OK” to confirm the uninstall process.

#2. Use only Google Play Store

As you are all aware, the Play Store is specially designed for Android software and contains only trusted and safe Apps. It is often known as the “Android Market” because it is loaded with different types of Apps to stiffly all your needs so that you don’t have to rely on other third-party sources to purchase/install Apps.

#3. Mount your SD Card

Another remedy for Android App not installed error is to make sure that the SD card inserted in your device is not inaccessible.

To check the same:

First, disconnect your Vivo Y77t from your PC and then visit “Settings” on your Android and select “Storage” from the options that appear. Finally, click on “Mount SD Card” at the Storage Info screen.

You can now restart your device and try to install the app now, it should work!

#4. Choose App location wisely

It is advisable to not tamper with the App’s location and let the software decide where it needs to be placed. As far as possible, let the Apps be in your device’s internal memory.

#5. Format SD Card

The chances of your SD Card being corrupted are very high. You can format it either while it is in your device or externally.

Now to Clean up your SD Card, simply visit “Settings” and select “Storage” and tap on “Format SD Card” and mount it once again to use it smoothly.

#6. App Permissions

You can reset App permissions to combat the Android App not installed error by Visiting “Settings” and then selecting “Apps”. Now access the Apps menu and hit “Reset App Preferences” or “Reset application permissions”. This will allow third-party apps to get installed on your device.

#7. Choose the correct App file

Make sure to always download an App file only from a trusted and safe source to avoid any errors during installation.

#8. Reboot your device

Finally, if nothing else works, restart your device to end all operations which could be causing the said error. To reboot, just press the power button till you see a pop-up. Select “Restart” and wait for your device to reboot.

Conclusion

Encountering the “App Not Installed” error on Android can be frustrating, but by understanding the causes and implementing the appropriate solutions, you can overcome this issue. We saw that Android App not installed error can be fixed quickly if you keep in mind the tips given in this article. However, please ensure that you follow each instruction carefully to avoid any further goof up.

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App Won’t Open on Your Vivo Y77t? Here Are All Fixes

It is not a very rare phenomenon where an App won’t open, crash abruptly or face trouble while launching on an Android device. Many Android phone users also add to the fact that whenever they try to launch an App, it keeps loading but does not run smoothly, as it should in normal circumstances.

In such a scenario it is obvious for Android Smartphone users to look for possible solutions for such a random error so that their App/Apps load and work normally.

Many people are also interested in knowing about the causes behind why an App won’t open or why multiple/all Apps won’t open. This article will answer your query about why won’t my App open on an Android phone by listing a few probable causes for the problem.

Here are all the fixes you need if an App won’t open on your Vivo Y77t. Read on to find out all about why Apps won’t open on your Vivo Y77t and solutions to overcome such a problem.

Part 1: Possible reasons for Apps won’t open

If you are an Android phone user and face a problem while trying to open an App on your device, you will ask yourself “Why won’t my App open?”. To answer your question and explain to you why an App won’t open on your phone, here are some probable and simple reasons to make you understand the real problem.

It is appropriate to tag our generation as smartphone addicts because we use smartphones for anything and everything. All our important information, such as photos, videos, audio files, documents, notes, calendars, emails, etc, are stored on our phones. This causes a major storage/space problem in our phones and a shortage of storage space is one of the main reasons why an App won’t open or why all Apps won’t open on your Vivo Y77t. To see how much of your storage space is occupied by Apps, go to “Settings” and select “Application Manager”.

Another possible reason for Apps to crash or why an App won’t open is a possible data crash. This may occur due to an unstable internet connection or various other background software interruptions.

The causes for the problem to occur are many and no specific reason can be established as the only reason why Apps won’t open on your Vivo Y77t. There are a lot of speculations about why such a problem occurs and persists, but it is more important to focus on how to fix if a particular App won’t open or if all Apps won’t open on Android.

Part 2: Quickest solution to fix apps won’t open on Android

You have already understood ‘why won’t your app open?’ at the start of this article. But, you are not happy with the traditional solutions to fix the app won’t open issue.

Well, in such a case Dr.Fone - System Repair (Android) can prove to be your savior. It resolves failed Android system update issues, crashing apps, and black screen of death. It can also get an unresponsive or bricked Android device or boot loop stuck device fixed with one click.

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Here comes the detailed guide to fix apps won’t open problem using Dr.Fone - System Repair (Android)

Note: When you are up to fixing apps won’t open issues, make sure to back up your Vivo Y77t beforehand. These processes might lead to data erasing and you don’t want to suffer data loss this way.

Phase 1: Preparation and connection of Android device

Step 1: Post-installation and launch of Dr.Fone on your computer, you got to press the ‘System Repair’ tab. Connect the Android device later.

Step 2: Hit the ‘Android Repair’ located on the left panel followed by tapping the ‘Start’ button.

Step 3: Feed your Vivo Y77t details under the Vivo Y77t device information screen. Please check the warning and press the ‘Next’ button right after that.

Phase 2: Repairing your Vivo Y77t under ‘Download’ mode

Step 1: You got to boot the Android device under Download mode, as it’s important. The steps for that are as follows –

Android devise with a ‘Home’ button – Press together ‘Volume Down’, ‘Home’, and ‘Power’ buttons together for 5 to 10 seconds after turning off the Vivo Y77t device. Release them afterward and click the ‘Volume Up’ button to get into the ‘Download’ mode.

When there is no ‘Home’ button – Turn off the Vivo Y77t device and then for 5 to 10 seconds, keep the ‘Volume Down’, ‘Bixby’, and ‘Power’ buttons pressed. Tap the ‘Volume Up’ button after releasing all the buttons to enter the ‘Download’ mode.

Step 2: Hitting the ‘Next’ button starts downloading the Android firmware.

Step 3: Once Dr.Fone - System Repair (Android) verifies the downloaded firmware, it begins fixing the app won’t open the issue asap.

Part 3: 3 Common fixes if a particular App won’t open

In this segment, we will discuss the three best ways to help you fix the problem if only a particular App won’t open/launch/ run and takes an indefinite time to load.

1. Update the App

It is always advisable to keep your Android software as well as your Apps up-to-date and you must constantly check for any updates which may be available in the Google Play Store.

Follow the steps given below to update the app which won’t open on your phone:

• Visit Google Play Store on your Vivo Y77t.

• Now select “My Apps & Games” from the main menu.

• In this step, you may click on “Update All” to update all Apps for which an update is available or manually select the Apps which you wish to Update.

Once the App is updated, close all Apps and tabs running in the background. Now try to launch the app once again. If it opens, your problem is solved. If not, DO NOT worry as there are more ways to help you.

2. Force Stop the App

Closing the App completely which won’t open on your phone is a good idea. To make sure that no operations are running in the background related to the App, you must “Force Stop” it. Doing this is extremely simple and all you need to do is follow the steps given herein under:

• Visit “Settings” on your phone.

• Click on “Apps” to see a list of all the Apps on your Vivo Y77t.

• Select the App which won’t open.

• Now click on “Force Stop” as shown below.

3. Clear App Cache and Data

This method resolves the issue to a great extent by wiping off unnecessary App content from your device.

Carefully follow the step-by-step instructions given below to clear all App cache and data:

• Visit “Settings” and select “Apps”.

• From the list of Apps that appears, select the App that won’t open.

• Now tap on “Clear Cache” and “Clear data” directly or under “Storage”.

Part 4: 3 Common fix if all Apps won’t open on Android

In this segment, we will discuss solutions to the problem if all your Apps won’t open. They are simple and easy to follow and solve the error in no time.

1. Android updates

Firstly, it is very important to keep your Android software updated at all times as an old Android version might not support new Apps or updated Apps.

To update your software:

• Visit “Settings” and keep going downwards.

• Now select “About Phone”.

• From the options available on the screen, tap on “System Updates”

• In this step, if you are prompted for an update, follow the instruction given and do so.

Updating your Android software solves most of your problems. This method might sound weird but works wonders when it comes to App related issues.

2. Restart the phone

Restarting your Vivo Y77t to fix an error might sound old school but it gives good results when your Apps won’t open. Restarting your phone is fairly simple. All you need to do is:

• Long press the power button.

• Now click on “Restart”.

Your phone will automatically restart and once it does, you can try to launch the App. You may also restart your Vivo Y77t by pressing the power button for about 15-20 seconds.

3. Reset Factory Settings

This method is a little tedious and must be last on your list. Also, make sure you take a backup of all your data and contents stored on your Vivo Y77t and this solution will completely wipe off your phone making as good as a new smartphone.

To Factory Reset your Vivo Y77t, carefully follow the guidelines given below:

• Visit “Settings” to find the “Backup and reset” option as shown in the screenshot below.

• Now click on “Factory Data Reset”>“Reset Device”>“Erase Everything”

Your phone will now reboot and will be required to set up from scratch.

“Why Won’t my App open” is a question asked by many Android phone users who fear that the problem occurs due to a virus attack or a system failure. However, this is not the case. The reason for the error to the surface is quite minor and can be fixed by you, sitting at home, without resorting to any kind of technical or external assistance. The solutions listed above are easy to understand and not very time-consuming.

So go ahead and try them out now!

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.

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.

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.

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How to Fix Android App Not Installed Error on Vivo Y77t Quickly? | Dr.fone