How to Fix Android App Not Installed Error on Oppo K11 5G 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 Oppo K11 5G? 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 K11 5G 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 K11 5G 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 K11 5G 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 Oppo K11 5G 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!

Click here

### #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 K11 5G 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.

safe & secure

7 Fixes for “Unfortunately, Phone Has Stopped” on Oppo K11 5G

Encountering issues with the Phone app is never welcoming. Being one of the useful apps, seeing it crashing and unresponsive gives sheer despondency. If talked about the triggering points, they are numerous. But the central point is what to do when the Phone app keeps crashing. In this article, we have discussed this issue in detail. To know this and more about why the “Unfortunately, Phone has stopped” error crops up, read this article and get the problem sorted on your own.

Part 1: When can the “Unfortunately, Phone has stopped” error come?

First things first! You need to stay updated on why the Phone app keeps stopping or crashing before jumping to any solution. Following are the points when this error comes up to annoy you.

When you install a custom ROM, the issue might occur.
The upgrading of the software or incomplete updates can lead to crashing the Phone app.
Data crashes can be another reason why this error shows up.
Infection through malware and virus on your phone is also included when the Phone app might crash.

Part 2: 7 Fixes for the “Unfortunately, Phone Has Stopped” error

2.1 Open the Phone app in Safe Mode

First and foremost, the thing that can let you get rid of this trouble is Safe Mode. It is a feature that will end any excessive background functioning of the Oppo K11 5G device. For instance, your device will be able to run sans any third-party apps when in Safe mode. Since the important functions and the naïve apps will be running on the Oppo K11 5G device, you will get to know if it’s really a software glitch or not by running the Phone app in Safe mode. And this is the first solution we would recommend you make use of when the Phone app has stopped. Here is how to enable Safe Mode.

Switch off the Oppo K11 5G phone first.
Now keep pressing the “Power” button until you see the Oppo K11 5G logo on the screen.
Release the button and immediately press and hold the “Volume Down” key.
Leave the key once the Oppo K11 5G device is in Safe mode. Now, the third-party apps will be disabled and you can check if the Phone app is still not responding or everything is fine.

2.2 Clear the cache of the Phone app

The cache should be cleaned timely if you want any app to work properly. Due to the constant usage, the temporary files get collected and may corrupt if not cleared. Hence, the next solution you should try when the Phone app keeps stopping is to clear the cache. Here are the steps to be performed.

Open “Settings” on your device and go to “Application” or “Apps”.
Now from the list of all applications, go to “Phone” and tap on it.
Now, click on “Storage” and choose “Clear Cache”.

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

2.3 Update Google Play services

Since Android is created by Google, there must be some Google Play services that are crucial to run several system functions. And if attempting the previous methods isn’t of any use, try updating Google Play services when you find the Phone app stopped. For doing this, you need to make sure that automatic updates are turned on in Google settings. If not, enable it and get the apps including Google Play services updated for smoother functions.

PCDJ DEX 3 for Windows & MAC is the total entertainment DJ software solution, offering audio, video, and karaoke mixing ability. Automatic beat-sync, smart looping, 4 decks, DJ MIDI controller support, Karaoke Streaming and much more.
DEX 3 meets the demands of today’s versatile DJ, without compromise!
DEX 3 (Audio, Video and Karaoke Mixing Software for Windows/MAC | 3 Activations and Free Updates)

2.4 Update the Oppo K11 5G firmware

When the firmware is not updated, it may conflict with some apps and maybe that’s why your Phone app falls prey. Therefore, updating Oppo K11 5G firmware will be a sane step that should be taken when the Phone app has stopped. Follow the below-mentioned steps and then check if the Phone app is opening or not.

Open “Settings” and go to “About Device”.
Now tap on “Software Updates” and check for the availability of the new update.

Download and install it and then try to use the Phone app.

2.5 Clear partition cache

Here is another resolution for the “Unfortunately Phone has stopped” error. Clearing the partition cache will remove the whole cache of the Oppo K11 5G device and make it work like before.

Switch off your device to begin with and enter the recovery mode by pressing the “Home”, “Power” and “Volume Up” buttons.
The recovery mode screen will appear now.
From the menu, you need to choose “Wipe Cache Partition”. For this, you can use the Volume keys to scroll up and down.
To select, press the “Power” button.
The process will begin and the Oppo K11 5G device will restart post it. Check if the problem still persists or it is finished. If unfortunately not, get to the next and the most productive solution.

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

2.6 Get the Oppo K11 5G system repaired in one click

If still, the Phone app keeps stopping after trying everything, here is the most effective method that can surely help you. Dr.Fone - System Repair (Android) is a one-click tool that promises to repair Android devices hassle-free. Be it apps crashing, the black screen, or any other issue, the tool has no problem fixing any sort of issue. Here are the benefits of Dr.Fone - System Repair (Android).

Dr.Fone - System Repair (Android)

Android repair tool to fix “Unfortunately, Phone Has Stopped” on Oppo K11 5G devices.

It takes no special skills to operate it and fairly works to bring the Android system to normalcy.
It shows great compatibility with all Oppo K11 5G devices and other Android phones supporting over 1000 Android brands.
Fixes any kind of Android issue without any complication.
Easy to use and trusted by millions of users and therefore has a higher success rate.
Can be downloaded freely and friendly user interface.

3,106,444 people have downloaded it

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

Step 1: Get the Software Installed

Click the “Start Download” button to download the tool on your computer, and then open the program to begin the repair, click on “System Repair”.

Power Tools add-on for Google Sheets, Lifetime subscription

Step 2: Plug the Phone with PC

Take your original USB cord and then connect your Oppo K11 5G to the computer. When the Oppo K11 5G device is connected, click on “Android” from the two tabs > click “Start”

Step 3: Enter the Details

As the next step, enter some important details on the next screen. Be sure to enter the right name, brand, and model of the Oppo K11 5G device. When done everything, verify once and click on “Next”.

Step 4: Downloading Firmware

Downloading firmware will be the next step. Prior to this, you have to go through the instructions given onscreen to enter the DFU mode. Please click on “Next” and the program will bring the suitable firmware version and start downloading it.

Step 5: Get the Oppo K11 5G device Repaired

When you see the firmware has been downloaded, the issue will begin to get resolved. Hang on and wait until you get notified for the repair of the Oppo K11 5G device.

safe & secure

2.7 Factory reset

If none of the above methods worked for you, the last resort you are left with is a factory reset. This method will wipe everything from your device and make it function like normal. We also suggest you make a backup of your data if it is important so as to prevent the loss. Here is how to do this to fix the crashing Phone app.

Open “Settings” and go to the “Backup and Reset” option.
Look for “Factory data reset” and then tap on “Reset phone”.
Within a while, your device will go through resetting and boot up to normalcy.

EmEditor Professional (Lifetime License, non-store app)

safe & secure

9 Solutions to Fix Process System Isn’t Responding Error on Oppo K11 5G

The “Process system isn’t responding” is a common error that occurs in almost every kind of Android device. Even though most Android smartphone manufacturers have taken a huge leap in the last few years, the operating system still suffers from a few pitfalls. The process system isn’t responding Android is one of those errors that have been reported plenty of times. I definitely understand encountering the ‘Process System Isn’t Responding’ error on your Oppo K11 5G can be frustrating.

However, there are several straightforward methods to resolve this issue. This article will provide a step-by-step guide on how to fix the problem and restore your device to normal functionality.

Before solving any Android system issues, try this Android backup software to take a full backup, in case any data loss happens.

Part 1: Reasons for process system isn’t responding error

There could be plenty of reasons for getting the process system is not responding in Android.

Software Glitch: Android systems may experience temporary glitches due to factors like memory management issues, conflicts between apps or services, or system updates.
Insufficient System Resources: Low system storage is another reason for getting the error. If you have too many apps on your phone, then it might take a toll on its memory and generate the “process system isn’t responding” prompt.
Third-Party Apps: Users have also complained that they receive the “Android process system is not responding” error after installing a new app. If you have installed an app from a source other than Google Play Store, then the chances are that you can get this error. Though, even after installing an app from Play Store, there is a bleak probability of facing this issue as well.
Outdated Software: Using outdated apps, particularly system apps or critical components, may lead to compatibility issues with the latest Android version.
System Updates: Most of the time, it happens whenever a device is restarted after updating its Android version. Your device could have undergone a bad update or might have had an unsupported driver. This can result in the occurrence of process system not responding issue.
Corrupt Cache Files: Corrupted cache files can lead to conflicts and result in error.
Overclocking or Modifications: Rooting or modifying the Android device, or applying overclocking settings, can lead to instability and the process system not responding error.
Hardware Issues: Rarely, hardware problems like failing components can interfere with the proper functioning of the system.

No matter what the cause is, there are plenty of ways to overcome this issue. We have listed a handful of them in this post.

Part 2: How to Fix Android Process Not Responding? 8 Fixes

When this error occurs, it can disrupt the normal operation of the Oppo K11 5G device, causing apps to freeze or crash. Fortunately, there are several effective methods to address this problem.

Fix 1: Restart your device

This is one of the easiest ways to resolve the process system not responding error. If you are getting this error on your phone, then try to manually restart your device. The way to restart your phone might differ from one device to another. Mostly, it can be done by long-pressing the power button. This will provide different power options. Tap on the “Reboot” one to restart your phone.

If it won’t work, then long press the Power and Volume up buttons at the same time until the screen goes off. Afterward, use the power button again to turn it on.

vMix Basic HD - Software based live production. vMix Basic HD includes 4 inputs, 3 cameras, streaming, recording, playlist.
This bundle includes Studio 200 for vMix from Virtualsetworks, HTTP Matrix 1.0 automation scheduler, and 4 introductory training videos from the Udemy vMix Basic to Amazing course.

Fix 2: Reset App Preferences

Sometimes the apps interfere with the Oppo K11 5G device’s settings because they were given permission to access specific functions. It is recommended to allow the asked permission precisely because some suspicious apps can also steal your sensitive data. Here are the straightforward instructions you need to follow to reset the app preferences:

Proceed to the “Apps and Notifications” settings from the Settings app. Next, tap the “See All Apps” option and access the “Three Dots” menu. Here select the “Reset App Preferences” option and confirm the process from the confirmation pop-up.

Fix 3: Free Up Space to Make Sure Android Have Enough Internal Memory

In case the Android internal memory is completely filled, it will slow down the processing speed of the Oppo K11 5G device. Internal memory is vital for the Oppo K11 5G device to run all the background apps or the process required by the OS to run the Oppo K11 5G device efficiently. You can follow these steps to free up some space on your Oppo K11 5G:

Step 1: Open the Settings app on your Oppo K11 5G and access the “Battery and Device Care” option by scrolling down. Next, tap on the “Three Dots” from the top right corner and choose the “Storage Booster” feature.

Step 2: Following this, you can select the data you want to remove from the internal memory. Your device will show the space it will free up for you, and you can press the “Free Up” button to free up the storage.

Fix 4: Enter Safe Mode to Uninstall Suspicious Apps

This issue can also occur if you have installed an app from the Google Play Store with a very low rating or an APK. Unlike Apple App Store, anyone can easily upload their mobile apps on Play Store, so it is important to check the app’s credibility before installing it. Following are the simplified instructions to enter the safe mode and delete all suspicious applications:

Press and hold the “Power” button of your Android and press and hold the “Power Off” option to access the “Safe Mode” feature. Afterward, confirm to enter the safe mode and remove all the suspicious apps from the Oppo K11 5G device. You can do this by holding on to the app and selecting the “Uninstall” option from the pop-up options.

Fix 5: Update All Apps on your Device

Updating the apps is crucial for any Android device to work with high efficiency and performance. Apps are developed to make the users’ daily tasks easy to execute. However, there might be some negligence in the development, which can leave some bugs in the app. These bugs are fixed with time by releasing the new version of the app. To update your Android app, proceed with the following step-by-step instructions:

Step 1: Locate the Play Store from the Android home screen and access it. Then, tap the “Profile” icon from the top right corner and proceed to the “Manage apps and devices” option. Afterward, you can check how many app updates are available from the “Updates available” option. To update the apps, you will have to go inside this option.

Step 2: You can tap on the “Update All” button if you want to update all the apps one by one. Otherwise, you can press the “Update” option adjacent to each app name to update the frequently used ones.

DbSchema database designer for all databases, schema design in the team, schema deployment, interactive diagrams, documentation, data and query tools.

Fix 6: Check the SD card

If you are still getting the process system isn’t responding to Android error, then chances are that there could be an issue with your SD card. Firstly, check if your SD card is working fine or not. If it is corrupted, then get another memory card for your phone. Also, it should have a prominent amount of free storage. You might be facing this issue if the SD card has limited free space.

Also, if you are storing apps on the SD card, then your phone might encounter the process isn’t responding issue whenever you run a respective app. Therefore, you should move apps from your SD card to the phone’s internal memory. To do this, go to your phone’s Settings > Application Manager and select any app. If the app is stored on the SD card, then you will get an option of “Move to devise storage”. Just tap on it and manually move every app to your device storage.

Fix 7: One click to fix the process system isn’t responding error

If all the above tricks don’t get your device out of the process system not responding state, then there may be some system issues on your Android. In this case, an Android repair can successfully fix issues like process system isn’t responding.

Note: Android repair may wipe out existing Android data. Back up your Android data before going on.

Dr.Fone - System Repair (Android)

Android repair tool to fix all Android system issues in one click

Fix all Android system issues like the black screen of death, system UI not working, etc.
One-click for Android repair. No technical skills are required.
Supports all the new Oppo K11 5G devices like Galaxy S8, S9, S22, etc.
Step-by-step instructions are provided. Friendly UI.

3981454 people have downloaded it

Follow the easy steps below to fix process system isn’t responding error:

1. Download and install the Dr.Fone tool. Then select “System Repair” from the main window.

2. Connect your Oppo K11 5G to the PC. After the Oppo K11 5G device is detected, select the “Android” tab.

SwifDoo PDF Perpetual (2-PC) Free upgrade. No monthly fees ever.

3. Select and confirm the correct device details of your Android. Then boot your Oppo K11 5G in download mode and proceed.

4. Download the firmware and click “Fix Now”.

5. After a while, your Android will be repaired with the “process system isn’t responding” error fixed.

safe & secure

Fix 8: Factory reset Android

It is always considered the most used way to factory reset your phone in order to resolve the process system not responding error. Though, this should be your last resort, as it will wipe off your device’s data entirely. Even if you are performing a factory reset, make sure that you back up your data by using a reliable tool like Wondershare Dr.Fone .

Wondershare Dr.Fone

Flexibly Back up and Restore Android Data

Back up Android data to the computer with one click.
Preview and restore selectively the backup to any Android device.
Supports 8000+ Android devices.
There is no data lost during backup, export, or restoration.

3,981,454 people have downloaded it

If your phone is functioning, then you can easily factory reset it by visiting Settings > General > Backup & Restore and selecting the option of “Factory Data Reset”. Your device will display a warning regarding all the data files that would be lost or un-synced. Just tap on the “Reset” button to factory reset your device.

If your device is not functioning or locked, then you can perform the factory reset operation by putting your phone into Recovery mode. Most of the time, it can be done by pressing the Power and Volume up button simultaneously for at least 10 seconds. Though, the key combinations might change from one device to another.

After entering the Recovery mode, go to the “wipe data/factory reset” option using the Volume up and down button. Use the Power button to make a selection. If you get an additional message, then select the “yes – delete all data” option. When it is done, you can simply reboot your device.

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

Fix 9: Unroot the Oppo K11 5G device

It has been further discovered that the process system isn’t responding error is more common in rooted devices. Therefore, if you also have a rooted Android device, then you can choose to unroot it in order to fix this issue. There are different ways to unroot an Android device. One of the easiest ways to do it is by using the SuperSU app.

You can always download either SuperSU or SuperSU Pro app from its website here . Simply install it on our device and launch it whenever you wish to unroot it. Visit its “Settings” tab and select the option of “Full unroot”.

This will generate a warning message regarding all the repercussions of the unrooting process. Just tap on “Continue” to initiate the process.

If you are using an older version of Android, then you might get another pop-up to restore boot images. Simply make the desired selection and start the process. After a while, your device would be restarted the usual way, and it would be unrooted. Most probably, this will resolve the process system isn’t responding error as well.

Now that you know different ways to fix the process system not responding error, you can easily overcome this issue and make the most out of your device. Simply start with the easy fixes, and if they don’t work, then take extreme measures like unrooting your device or restoring it to factory setting. Also, make sure to back up your data before taking any extreme measures.

Change Location

How to Fix Android App Not Installed Error on Oppo K11 5G Quickly? | Dr.fone