How to Fix Android App Not Installed Error on Realme GT 3 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 Realme GT 3? 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 Realme GT 3 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 Realme GT 3 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 Realme GT 3 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.

Dr.Fone - System Repair (Android)

A powerful tool to fix the “Android App not installed” error in one click

Fix all Android system issues like Android App not being installed, the system UI not working, etc.
One-click to fix Android App not installed. No technical skills are required.
Support all the new Realme GT 3 devices, etc.
On-screen instructions are provided to prevent any misoperation.

3981454 people have downloaded it

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.

safe & secure

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.

LYRX is an easy-to-use karaoke software with the professional features karaoke hosts need to perform with precision. LYRX is karaoke show hosting software that supports all standard karaoke file types as well as HD video formats, and it’s truly fun to use.
LYRX Karaoke Software MAC/WINDOWS (Includes Activation For 3 Machines)

#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.

Take advantage of PREMIUM features for 12 months.
Create your texts / logos without any limitation.
No attribution required when downloading.
No advertising on the website.
TextStudio.com PREMIUM - Yearly Membership

#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 Realme GT 3 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.

Power Tools add-on for Google Sheets, 12-month subscription

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.

safe & secure

How to Quickly Fix Bluetooth Not Working on Realme GT 3

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 Realme GT 3 is when it doesn’t connect to the Realme GT 3 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 Realme GT 3 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 Realme GT 3. 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
Incredibly user-friendly and easy-to-use
Compatible with all Windows computers

3981454 people have downloaded it

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 Realme GT 3 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.

Glary Utilities PRO - Premium all-in-one utility to clean, speed up, maintain and protect your PC

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 Realme GT 3 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 Realme GT 3 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 Realme GT 3 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

Jet Profiler for MySQL, Enterprise Version： Jet Profiler for MySQL is real-time query performance and diagnostics tool for the MySQL database server. Its detailed query information, graphical interface and ease of use makes this a great tool for finding performance bottlenecks in your MySQL databases.

2.4 Remove paired devices

Sometimes, you may have a problem with the Realme GT 3 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 Realme GT 3, head to Settings > Bluetooth > Connected Devices.
Turn Bluetooth on, and you’ll see all the connections your Realme GT 3 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 Realme GT 3 device, enter the passcode, and use a fresh paired connection.

2.5 Use Bluetooth in safe mode

KoolReport Pro is an advanced solution for creating data reports and dashboards in PHP. Equipped with all extended packages , KoolReport Pro is able to connect to various datasources, perform advanced data analysis, construct stunning charts and graphs and export your beautiful work to PDF, Excel, JPG or other formats. Plus, it includes powerful built-in reports such as pivot report and drill-down report which will save your time in building ones.

It will help you to write dynamic data reports easily, to construct intuitive dashboards or to build a whole business intelligence cockpit.

KoolReport Pro package goes with Full Source Code, Royal Free, ONE (1) Year Priority Support, ONE (1) Year Free Upgrade and 30-Days Money Back Guarantee.

Developer License allows Single Developer to create Unlimited Reports, deploy on Unlimited Servers and able deliver the work to Unlimited Clients.

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 Realme GT 3 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 Realme GT 3 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 Realme GT 3, 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 Realme GT 3 from the Bluetooth device and turn your Bluetooth off
Now take another Bluetooth device and connect this to the Realme GT 3 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 Realme GT 3
If the Realme GT 3 devices connect, you’ll know there’s a problem with your Realme GT 3

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 Realme GT 3 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 Realme GT 3 to the Realme GT 3 device you were trying to use. If it works, you know you were experiencing Bluetooth interference.

How to Exit Android Factory Mode On Realme GT 3?

You’ve often heard that recovery mode will solve just about any problem your Realme GT 3 is experiencing. This is mostly true and one of the components of Android’s recovery mode, factory mode or factory reset is one of the most efficient ways to solve various problems on your device. While factory mode is often a good thing, there are times when your device can enter factory mode on its own. Other times, you can safely enter factory mode but not know how to get out.

Fortunately for you, this article will explain all aspects of factory mode and especially how to safely exit factory mode.

Part 1. What is Android Factory Mode?

Factory mode or what is commonly known as factory reset is one of the options available for you when your Realme GT 3 is in recovery mode. Several options are available for you once you enter Recovery mode on your device but few are as effective as the wipe data/ factory reset option. This option is useful in solving a whole host of problems that your device could be experiencing.

If you have been using your Realme GT 3 for a while now and its performance to be less than ideal, a factory reset might be a good solution. That is however not the only problem a factory reset or factory mode can solve. It will also work for a number or Android errors that you may experience, problems caused by faulty firmware updates and also tweaks made on your device that may not have worked as expected.

It is however important to note that a factory reset or factory mode does often result in the loss of all your data. Therefore a backup is necessary to protect against this data loss risk.

SwifDoo PDF Perpetual (1 PC) Free upgrade. No monthly fees ever.

Part 2. Backup your Android Device First

Before we can see how to safely enter and exit factory mode, it is important to have a full backup of your device. We mentioned that a factory mode will likely erase all the data on your device. A backup will ensure that you can get your phone back to its original state before the factory mode.

In order to do a full and complete backup of your device you need to have a tool that will not only ensure that you backup everything on your device but one that makes it easy for you to accomplish this. One of the best tools in the market is Dr.Fone - Backup & Resotre (Android) . This software is designed to enable you to create a full backup of your device.

Dr.Fone - Backup & Restore (Android)

Flexibly Backup and Restore Android Data

Selectively backup Android data to computer with one click.
Preview and restore backup to any Android devices.
Supports 8000+ Android devices.
There is no data lost during backup, export or restore.

3,428,803 people have downloaded it

Follow these very simple steps to use this MobileTrans Phone Transfer software to create a full backup of your device.

Step 1. Launch Dr.Fone on your computer and choose “Backup & Restore”

Run the software on your computer and you can see all features displayed in the primary window. Choose this one: Backup & Restore. It allows you to get your device backed up entirely with one click.

Step 2. Plug in with your device

Then plug in with your device to the computer. When your devic is detected, click on Backup.

Step 3. Select the file types to backup

The program will display all the file types it can support to backup. Just select the ones you would like to backup and hit Backup.

Step 4. Start backing up your device to the computer

After choosing the file’s type for backup, click “Backup” to begin backing up your device to your computer. It will take you a few minutes, depending on the storage of the data.

Note: You can use the feature of “Restore From Backup” to restore the backup file to your device, when you have the need later.

Part 3: One Click Solution to fix Android stuck in factory mode

From the above parts, you are well aware about what is factory mode. As we discussed, this mode fixes most troubles with Android devices.

But for situations when your Realme GT 3 gets stuck in this very same factory mode, the most feasible solution for you is Dr.Fone - System Repair (Android) . This tool fixes all Android system issues including unresponsive or bricked device, stuck on Realme GT 3 logo or factory mode or blue screen of death with a single click.

Dr.Fone - System Repair (Android)

One click fix to Android stuck in factory mode

You can easily fix your Android stuck in factory mode with this tool.
The one-click solution’s ease of operation is appreciable.
It has carved a niche being the first Android repair tool in the market.
You don’t need to be a pro in technology to use this program.
It is compatible with all latest Realme GT 3 devices like Galaxy S9.

3,645,867 people have downloaded it

In this part we will explain how to exit Android recovery mode using Dr.Fone - System Repair (Android) . Prior to proceeding, you got to remember that device backup is paramount to keep your data safe. This process might erase your Realme GT 3 data.

Phase 1: Ready your device and connect it

Step 1: Installation completion needs to be followed by running Dr.Fone on your system. Over the program window, tap ‘Repair’ afterwards and get the Android device connected.

Step 2: Select the ‘Android Repair’ option from the list to fix Android stuck in factory modeissue. Hit the ‘Start’ button soon after.

Step 3: Select Android device details on the Realme GT 3 device information window, followed by tapping the ‘Next’ button.

Step 4: Enter ‘000000’ for confirmation then proceed.

Phase 2: Get in ‘Download’ mode for repairing the Android device

Step 1: It’s important to put the Android device in ‘Download’ mode, here are the steps to do so –

On a ‘Home’ button-less device – turn off the Realme GT 3 device and push down the ‘Volume Down’, ‘Power’ and ‘Bixby’ buttons for about 10 seconds and un-hold. Now, hit the ‘Volume Up’ button to get into ‘Download’ mode.

For a device with ‘Home’ button – switch it off and hold down the ‘Power’, ‘Volume Down’ and ‘Home’ buttons together for 10 seconds and release. Click the ‘Volume Up’ button for entering ‘Download’ mode.

Step 2: Press ‘Next’ for initiating firmware downloading.

Step 3: Dr.Fone –Repair (Android) starts Android repair as soon as download and verification of firmware is done. All Android issues along with Android stuck in factory mode will be fixed now.

Part 4. Common Solutions to Exit Factory Mode on Android

Having a backup of all your data will eliminate the risk of losing any of your data. You can now safely exit factory mode using one of the 2 methods below. These two methods will work on a rooted device.

Method 1: Using “ES File Explorer”

To use this method, you will need to have installed file explorer on your device.

Step 1: Open “ES File Explorer” and then press the icon on the top left corner

Step 2: Next, go to “Tools” and then turn on “Root Explorer”

Step 3: Go to Local> Device> efs> Factory App and then open factorymode as text in the “ES Note Editor” Turn it ON

Step 4: Open keystr as text in the “ES Note Editor” and change it to ON. Save it.

Step 5: Reboot the Realme GT 3 device

Method 2: Using Terminal Emulator

Step 1: Install Terminal emulator

Step 2: Type “su”

Step 3: Then Type the following;

rm /efs/FactoryApp/keystr

rm /efs / FactoryApp/ Factorymode

Echo –n ON >> / efs/ FactoryApp/ keystr

Echo –n ON >> / efs/ FactoryApp/ factorymode

chown 1000.1000/ efs/FactoryApp/keystr

chown 1000.1000/ efs/FactoryApp/ factorymode

chmod 0744 / efs/FactoryApp/keystr

chmod 0744 / efs/ FactoryApp/ factorymode

reboot

You can also exit factory mode on unrooted device by going to Settings> Application manager> All and the search for Factory Test and “Clear Data”, “Clear Cache”

As much as factory mode can be a useful solution to a number of problems, it can be quite annoying when it pops up unexpectedly. Now you are equipped with 2 effective solutions to help you safely exit factory mode if ever you find yourself in this situation.

Change Location

How to Fix Android App Not Installed Error on Realme GT 3 Quickly? | Dr.fone