How to Fix Android App Not Installed Error on Oppo Reno 9A 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.

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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 Oppo Reno 9A? 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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.

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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 Oppo Reno 9A 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 Oppo Reno 9A Quickly

All of you, sooner or later, must have found the “Unfortunately Settings has stopped” error on your Oppo Reno 9A. 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A, 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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, Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A device will be rebooted, fixing the issue hopefully.

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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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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 Oppo Reno 9A 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!

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Play Store Stuck on Downloading Of Oppo Reno 9A? 7 Ways to Resolve

Part 1: Symptoms when “Play Store Stuck on Downloading”

Just as any problem gives some indication of anything wrong is going to befall. Similarly, a user does feel some unexpected turns of events resulting in Play Store to stick at downloading. If one happens to see that the progress bar has suddenly frozen to a certain scope and taking ages to march any further, it is treated as the first signs for Play store not working properly. Another, such scenario is where your apps are not able to download easily. Rather, the Play store reflects a message downloads are yet in the pending queue. If one happens to witness such problems, these can be in fact be giving you the warning signal of the Play store problem

Part 2: Causes of why “Play Store Stuck on Downloading”

With technology, uncertainties are bound to happen. It becomes quite tricky to analyze the real problem and craft a solution. As, there can be several causes that might be disturbing the smooth functionality of Play store. Here are some collated issues that we’ve gathered that are indicative of the cause.

The time is not rightly setup: Sometimes, the unexpected root cause of play store failing to work is due to the date and time not set up rightly. If the system time is not according to the standard timing, then the application can misbehave.
Fluctuations in internet connection: If internet speed is running too low or has weaker connection, Play Store download stuck at 99 problem may arise out. Always, use a good speed of internet.
Get rid of Cache: Extras of cache can pose to be problematic in the working of applications. Users must timely clean their devices so as to brush away any kind of cache memory.
Outdated version of Play store app: Users generally do not feel the urge for updating the play store app. It is important to use only the updated version so as the functioning of Google Play app is not affected.

Part 3: 7 fixes for Play Store stuck on downloading

3.1 Check SD card and phone storage space

All the applications, data of one’s device is generally loads directly in phone’s storage or the SD card (if plugged). Hence, it is crucial to check whether your phone storage or SD is not fully occupied. As it can indirectly be the reason why the issue of “**Play Store download stuck at 99%**” might occur. Ensure to get rid of any application that you are no longer using. Or, consider deleting any picture, videos or documents that aren’t required by you.

3.2 Check Wi-Fi or cellular data connection

Sometimes, it’s not your phone that is going all faulty, the root cause might be the internet connection. If the internet is running low or does not seem to be stable, then the play store download problem may occur. Users must ensure that the Oppo Reno 9A device they are working should have a stable network connection so as to combat the problem. Then, they can try downloading the application and check if the problem is prevalent or not.

3.3 One click to fix corrupted Play Store components

The world of internet and its intricacies are beyond a novice’s realm. Chances of malfunctioning of Google Play Store may be due to the components relating to Play Store may have gone corrupted. To resolve such issue, the need of a good software that is courageous enough to tackle all kinds of issues is need. For that, the only perfect solution is Dr.Fone - System Repair (Android), an impeccable software useful in providing speedy recovery of your phone. With it you can ward away the issues like boot problem, black screen of death, phone stuck etc.

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Step by Step Tutorial

Here is the complete guide which will help users in understanding how Dr.Fone - System Repair (Android) can vanish Play store download problem completely.

Step 1: Launch Dr.Fone - System Repair (Android) and connect device

First of all, load the program on PC. In the interim, draw connection of device with phone using a genuine cable. Over the interface, tap on “System Repair” mode.

Step 2: Select Android Repair mode

Over the following screen, select “Android Repair” placed at the left panel to resolve play store stuck issue and press “Start” button too!

Step 3: Fill in the information

It is important to add in all the necessary information for successful execution of program. Make sure to give details of “Brand”, “Name”, “Country”, “Model” and all other fields.

Step 4: Ensure to Download Firmware

Now, follow the on the on-screen prompts to boot Android phone into the download mode. Once done, you’re ready to download the suitable firmware package by hitting the “Next”.

Fret not, the program will automatically detect the most suitable firmware for your device.

Step 5: Repair Android phone

After the package downloads, program will repair all kinds of problems surfacing over your phone automatically. This way, the Play store stuck on downloading will get resolved fully.

3.4 Clear data and cache of Play Store and download again

Did you know the piling up of cache memory can certainly pull off a great deal for Play Store getting stuck? Cache data may generally stash the data so that you can access it even in future course. But, this do east up a good chunk of space and result in the misbehavior of Play Store app. You can opt to brush away Play store stuck on downloading by using the following steps.

Get your Oppo Reno 9A and visit “Settings”.
Then, surf for “Application manager” option and launch “Google Play store” option.
From there, click on “Cached Data” and select the “Clear Cache” option.
Optionally, make use of “Force Stop” feature to halt the functioning of the app.
At last, reboot/restart your smartphone.

3.5 Update Play Store to the latest version

When was the last time you cared to update your Play store app? Generally, users overlook the need of updating the application. As, they think that it may not be of any greater importance. But, in reality working in an outdated version can directly impact Play Store and cause download problem. Follow the below steps to update Play Store to latest version.

From phone, just launch Google Play Store app from app drawer.
Press the 3 horizontal lines icon over the top and locate “Settings” from the left menu.
In Settings, browse for “Play Store Version” located under “About” section.
Tap on it, if it shows that Play Store app is not updated then proceed with the on-screen prompts to update it to the latest version.

3.6 Try another Google account

If you’re unable to see a streak of hope and wondering why my Play Store is still showing download pending. Well, some unexpected issue might be there with your Google account. As, there are times where your existing Google account can be the hurdle. Therefore, trying your hand in some other Google account might assist to work things out.

3.7 Avoid downloading large apps

Last but certainly not the least, users must avoid downloading large applications. Especially those games that eats a whopping number of 300+MB of your space. You must always watch out on size of the application is and only then craft the decision to load it on your device. This may help out in keeping the Play store stuck on downloading problem at bay.

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How to Fix Android App Not Installed Error on Oppo Reno 9A Quickly? | Dr.fone