How to Fix Android App Not Installed Error on OnePlus 12R 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 OnePlus 12R? 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 OnePlus 12R 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 OnePlus 12R 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 OnePlus 12R 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 OnePlus 12R 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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Fix Unfortunately Settings Has Stopped on OnePlus 12R Quickly

All of you, sooner or later, must have found the “Unfortunately Settings has stopped” error on your OnePlus 12R. The problem can occur if the Settings keeps stopping or crashing. Many times, you may try to open the Settings but it doesn’t even open. Or possibly, it may freeze after getting opened thereby hampering the OnePlus 12R device’s performance.

Well! There can be a number of reasons why this thing happens. For instance, custom ROM installations, not enough space in the OnePlus 12R device or perhaps an outdated version of Android. If you are struggling with the same issue and want to know what to do when Android Settings is not responding, this post will help you. We have explained everything in detail along with the solutions. So, scroll down and get things sorted.

Part 1: Clear the cache of Settings and Google Play Service

It is possible that the corrupted cache files are responsible for this error. Hence, as the first tip, we would like you to clear the Settings cache if that is what triggers the “Unfortunately Settings has stopped” issue. Clearing it would definitely make Settings run appropriately. And The steps to clear the cache of the Google Play Services app are similar. Here is how to clear the cache of Settings:

Open “Settings” on your OnePlus 12R and choose “Apps & Notifications”/”Apps”/”Application Manager” (the option may differ on different devices).
In the list of applications, look for “Settings” and open it.
Now, select “Storage” followed by “Clear Cache”.

Note: In some phones, the “Clear Cache” option may come after tapping on “Force Stop”. Therefore, go accordingly without getting confused.

Part 2: Clear the Android phone’s RAM and retry

As the next tip, we would like to suggest you clear your device’s RAM by ceasing the running apps in the background. RAM, if at the increased level, is responsible for the OnePlus 12R device’s freezing, poor performance, and most probably is the reason behind crashing Settings. Also, if the apps in the background keep running, they might conflict with the Settings and stop it to perform properly. Therefore clearing RAM is important when Android Settings is not responding. Here is how to do it.

Firstly, you need to go to the Recent apps screen. For this, long-press the Home key.
Note: Please note that different devices have different ways to go to the Recent apps screen. Do it according to the OnePlus 12R device you own.
Now, swipe the apps and tap on the clear option. You will be able to notice the amount of RAM cleared

Part 3: Uninstall the Google update

Uninstalling Google Play Store updates has also responded well to many users. It has worked in the case of the “Unfortunately Settings has stopped” error. So, we would also like to suggest you use this tip if the others don’t work. Here are the steps to be followed for this.

Open “Settings” on your Android and tap on “Application manager” or “Apps” or “Application.
Now, head to all the apps and select “Google Play Store” from there.
Tap on “Uninstall Updates” and restart your device to check if the crashing Settings issue has been resolved.

Part 4: Uninstall the custom ROM or re-flash the stock ROM

Using a custom ROM on your device brings up this problem due to incompatibility or improper installation. Therefore, you should either uninstall the custom ROM or re-flash the stock ROM. in order to re-flash the stock ROM of your OnePlus 12R, the best way would be Dr.Fone - System Repair (Android). It offers one-click functionality to flash stock ROM and that too with full security. Supporting all OnePlus 12R devices, it ranks among its counterparts when it comes to fixing crashing Phone app issues or any other Android system issue. It is loaded with the beneficial features which are discussed below.

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How to fix crashing Settings using Dr.Fone - System Repair (Android)

Step 1: Download Tool

Visit the official website of Dr.Fone and download the toolbox from there. Go for the installation process and wait until the installation gets over. Launch it now and choose the “System Repair” tab from the main window.

Step 2: Get the Phone Connected

With the help of a USB cable, plug your OnePlus 12R into the PC. Upon proper connection, hit on the “Android Repair” option from the left panel.

Step 3: Feed Correct Information

In the next window, you need to fill in some necessary information like the name and model of the mobile device. Enter details like country and career. Check once and hit on “Next”.

Step 4: Enter Download Mode

Now, you need to take your device into Download mode. For this, you need to follow the onscreen instruction according to your device. Click “Next” and you will notice the firmware downloading progress on your screen.

Step 5: Repair the Issue

Once the firmware is completely downloaded, your OnePlus 12R will automatically start getting repaired. Stay there and you will receive a notification that the repair is done.

Part 5: Wipe cache partition to restore Settings

Like RAM, wiping cache is also vital so as to make the OnePlus 12R device’s operation smoother. And when you are getting the “Unfortunately Settings has stopped” error, it might be due to the collected cache. To remove it, you will need to enter the recovery mode. And the steps for recovery mode range from device to device. For instance, OnePlus 12R users have to press the “Home”, “Power” and “Volume Up” buttons. Similarly, HTC and LG device users are supposed to press the “Volume Down” and “Power” buttons. For Nexus, it is “Volume Up, Down” and Power key combinations. Therefore, before going further, make sure what device you own and enter the recovery mode according to it. Now, follow the detailed guide below to wipe the cache partition in order to fix crashing Settings.

Primarily, turn off the OnePlus 12R device and enter the recovery mode by pressing the respective key combinations.
You will notice a Recovery screen on your device.
On showing up the recovery screen, look for the “Wipe Cache partition” option and use the “Volume Down” and “Volume Up” buttons to scroll down and up respectively.
On reaching the required option, press the “Power” button to start wiping.
Once finished, click the reboot option and the OnePlus 12R device will be rebooted, fixing the issue hopefully.

Part 6: Factory reset your Android

You can also opt for Factory resetting your device to fix the issue of Settings keeps stopping. By removing everything from the OnePlus 12R device, it will make your device run properly. If you have important data on your device, please make sure to create a backup before taking action if you don’t want to lose it. The steps are as follows.

In the “Settings, go to “Backup and Reset”.
Tap on “Factory data reset” followed by “Reset device”.
Wait for the completion of the process and check if Settings is stopping or not after it gets rebooted.

Part 7: Check and update Android OS

A lot of times minor issues crop up due to the operating systems that get outdated. It is because the OnePlus 12R device needs to get updated from time-to-time for proper functioning otherwise it will not be able to match up with the fading technologies thereby coming up with issues like “Unfortunately Settings has stopped”. We recommend here you check for the available update and update your device. For this follow the guide below.

Go to “Settings” and tap “About Phone” on your device.
Now, hit on “System Update” and the OnePlus 12R device will look for any available update.
If there is any, go along with the prompts to install it and make your phone even smarter.

Conclusion

If your OnePlus 12R shows the “Unfortunately Settings has stopped” error, don’t worry. This problem can come from many things like old software or cache issues. You can try easy fixes like clearing cache or updating your system. Sometimes, removing custom ROMs might be needed.

For iOS users facing similar problems, we recommend using Dr.Fone-System Repair (iOS) . It’s known for fixing many iOS problems without losing any data. Remember, a well-working device is just a few steps away!

safe & secure

Bricked Your OnePlus 12R? Here’s A Full Solution

A bricked phone is a device that won’t turn on no matter what you do and everything you try to do to fix it doesn’t work. Most people will tell you that there is really nothing you can do to fix a bricked device. But with the right information, the right buttons to push and useful additional software you can actually try to fix a bricked device.

In this article we are going to look at how you can fix your device if you are sure it is bricked, how to rescue the data on your bricked device and even how you can avoid this situation in the future.

Part 1: Rescue the data on your Bricked Android Phone

Before we can learn how to fix a bricked device, it is important that you are able to save the data that is on the OnePlus 12R device. Having the data saved somewhere else will be the added insurance you need in case anything goes wrong during the process. There are very few software solutions in the market to help you get back data from a bricked device. One of these and the most reliable is Wondershare Dr.Fone - Data Recovery (Android) .

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How to Use Dr.Fone - Data Recovery (Android) to Rescue Data from a Bricked Android

If your device is completely unresponsive, don’t worry Dr.Fone can help you get all the data back. Simply follow these steps to gain access to the OnePlus 12R device and recover all your data.

Step 1: Download and install Wondershare Dr.Fone to your PC. Launch the program and then click on Data Recovery. Select the data types you would like to recover and then click on Next.

Step 2. Select the issue type for your phone. Choose from “Touch screen not responsive or cannot access the phone” or “Black/broken screen”.

Step 3: In the next step, you need to select your device model. If you don’t know the model of your device click on “How to check the OnePlus 12R device model” to get help.

Step 4: The next screen will provide instructions on how to enter “Download mode.” Connect the OnePlus 12R device to your PC once it is in “Download Mode”

Step 5: The program will begin an analysis of your device and then download the recovery package.

Step 6: Then Dr.Fone will display all the recoverable file types. You can click on the files to preview them. Select the ones you need and click on “Recover to Computer” to save them to your computer.

Part 2: How to Fix Your Bricked Android Phone

Android devices are usually very flexible in allowing users to flash ROM but sometimes an incorrect process can result in a bricked device. While there are few solutions to this problem, here are a few things you can do;

When the OnePlus 12R device Boots Straight into Recovery

If the OnePlus 12R device can boot to the recovery screen, you can find an alternative ROM to install and copy it your device. Installation can then be done in the recovery menu. If the OnePlus 12R device is booting to recovery mode there is a chance that it can be fixed.

Step 1: Load up Clockworkmod or any other recovery tool that you have been using.

Step 2: Once you are in, navigate to the “Reboot system now.” If you are using Clockworkmod, this should be your first option. Hopefully everything will work just right if you do this, If it doesn’t you may need to download and re-flash the ROM again.

When the OnePlus 12R device won’t stop rebooting

Here’s what to do if the OnePlus 12R device wont stop rebooting.

Step 1: Turn off the OnePlus 12R device and then reboot in recovery mode.

Step 2: Go to “Advanced” which will bring up a number of options to choose from.

Step 3: One of the options should be “Wipe Dalvik cache” select this option and then follow the instructions. When finished select “Go Back” to return to the main menu.

Step 4: Go to the “Wipe Cache Partition” and select it.

Step 5: Go to “Wipe data/ factory reset.”

bricked android phone data recovery-Wipe data/ factory reset

Step 6: Finally reboot the OnePlus 12R device by selecting “Reboot system now.” This should fix the problem. You may also want to flash the same ROM or try a new one.

If the above methods don’t work, try one of the following options.

You can return to resource where you found the flash tools and search or ask for advice

Sometimes these errors can be caused if the ROM installation was performed via SD card. In this case reformatting the SD card might help.

If all else fails, it is time to returning the OnePlus 12R device to the vendor if your warranty is still applicable.

Part 3: Useful Tips to avoid Bricking your Android Phone

If you are planning on installing custom ROM you need to install Custom Recovery. This will enable you restore the OnePlus 12R device to its original settings should anything go wrong and hopefully help you avoid bricking your device.

Ensure that you are familiar with the Fastboot or ADB commands before doing anything. You should know how to recover your device by flashing a command line and also manually transfer important files to your device.
Make a backup of your device. This is obvious but most people fail to adhere to it. At the very least you can get back all your files and settings to transfer to a new phone.
Keep a full Nandroid backup on your phone
Keep another backup on your PC which you can access should anything go wrong with the Custom ROM installation
Know how to hard reset your device. It may come in handy when your device freezes on you.
You should also consider enabling USB debugging. This is because many solutions for a Bricked device rely on USB debugging.
Ensure the Custom ROM you choose can actually be used on your device model.

While installing Custom ROM can actually be a great way to customize your device, it is also the leading reason for bricked devices. Therefore ensure that you understand what you are doing when you decide to customize your device. Learn as much as you can about the process before attempting everything.

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How to Fix Android App Not Installed Error on OnePlus 12R Quickly? | Dr.fone