How to Fix Android App Not Installed Error on Oppo A2 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 A2? 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 A2 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 A2 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 A2 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 A2 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:

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

Power Tools add-on for Google Sheets, Lifetime subscription

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

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

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

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.

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

safe & secure

Forex Robotron Basic Package

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 A2 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.

Forex Robotron Gold Package

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

8 Solutions to Solve YouTube App Crashing on Oppo A2

YouTube can be considered among the apps that are widely used by users. And seeing “Unfortunately YouTube has stopped” error on the Android display screen is a thing that you can’t stand. The reasons can be multiple for why YouTube is not working or it keeps crashing. For instance, an outdated app, not updated OS, low storage, or corrupted cache. No matter what has triggered the problem on your device, we have solutions for it. Please read and follow this article to get the problem sorted.

Restart the app

The issues like YouTube keeps crashing are often get disappeared by just quitting and restarting the app. This is helpful to give a fresh start to the app and restarting will bring your device back to normal. Hence, the first resolution we would like to recommend is to restart your app. Follow the steps to do this.

• Go to “Settings” and tap “Apps & Notifications” or “Application”.
• Choose “YouTube” from the list of apps and open it.
• Tap on “Force Close” or “Force Stop”.

• You can now restart your device and then launch the app again. Check if this works or not.

Restart the Android

Similar to the app, if you restart the Oppo A2 device, it will start operating properly making the YouTube app work better than before. So, as the next tip, please restart your device.

• Long press the “Power” key.
• Press “Restart” and confirm.

Use a VPN

There is a possibility that YouTube is prohibited in your region. Banning some apps is done for some safety reasons. And therefore, you need to check if this is done in your area or not. If yes, then we shouldn’t mention the reason why YouTube is not working on Android. In such a case, use a VPN to access YouTube.

Clear the Cache of YouTube

When the stored cache files start getting crash, the “Unfortunately YouTube has stopped” sort of errors are likely to appear. And therefore, if the above method didn’t work, try this one to get the problem resolved. We are going to clear the cache of YouTube to make it run smoothly.

• Go to “Settings” and tap “Apps & Notifications”/”Applications”.
• Now, choose “YouTube” from the list of apps.
• Open “Storage” and click on “Clear Cache”.

vMix Pro - Software based live production. vMix Pro includes everything in vMix 4K plus 8 channels of Replay and 8 vMix Call
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.

Reinstall YouTube from Play Store

If YouTube keeps crashing, make sure to uninstall and reinstall it from Play Store. Doing this will make the app gets refreshed, remove the glitches, and make it normal as a result. Here are the steps for it.

• Firstly, uninstall it by “Settings” > “Apps” > “YouTube” > “Uninstall”.
• Now, go to the “Play Store” and search “YouTube”. Tap on “Install”.

Reset Network Settings

The apps that run on the internet might start crashing due to connectivity issues. Therefore, resetting the network settings once can work as a great remedy to follow when YouTube has stopped on your Oppo A2. This will remove all your network settings like Wi-Fi passwords etc.

• Tap on “Settings” followed by “Backup and reset”.
• Look for “Reset Network Settings”.

Note: In some phones, you may find the option in “System” > “Advanced” > “Reset”.

Re-flash the stock ROM of Android in one click

There are times when a corrupted system gives you such errors. And therefore, you should try re-flashing the stock ROM on your Oppo A2. Before you wonder how we would like to introduce a highly recommended tool for this. It is Dr.Fone - System Repair (Android). It holds the proficiency to flash the stock ROM in just a click. So, when your YouTube is not responding due to a corrupted system, make use of this tool to get it solved. The benefits associated with this tool are as follows.

Dr.Fone - System Repair (Android)

Android repair tool to flash the stock ROM of Android

• Easy to use and quickly fixes the issues
• Has the capability to repair any Android system issue
• 1000+ Android models are supported
• Takes no special technical knowledge to use
• Higher success rate with promising results

3981454 people have downloaded it

Step 1: Launch the Tool

Start with visiting the website on your PC and downloading the Dr.Fone toolkit. Install and open the tool. Now, from the main screen, choose “System Repair”.

Step 2: Connect Device

With the help of the USB cord, connect your Oppo A2 to the computer. Click on “Android Repair” now from the left panel.

Step 3: Enter Information

Now, as the next step, you need to make sure of the details of your device. Please enter the name and brand of the phone. The country, region, and career are also to be added. Hit on “Next” once done.

Step 4: Download Firmware

Now, follow the instructions given on the screen according to your device. Click on “Next” and the program will start downloading the firmware.

Step 5: Repair the Issue

Lastly, when the firmware is downloaded, the system will start getting repaired on its own. You need to wait until you are informed about the completion of the process.

DEX 3 RE is Easy-To-Use DJ Mixing Software for MAC and Windows Designed for Today’s Versatile DJ.

Mix from your own library of music, iTunes or use the Pulselocker subsciprtion service for in-app access to over 44 million songs. Use with over 85 supported DJ controllers or mix with a keyboard and mouse. 

DEX 3 RE is everything you need without the clutter - the perfect 2-deck mixing software solution for mobile DJs or hard-core hobbiests. 
PCDJ DEX 3 RE (DJ Software for Win & MAC - Product Activation For 3 Machines)

Reset Factory Settings of this Device

When nothing works, the last resort you can go with is resetting the Oppo A2 device to factory state. Doing this will remove any sort of conflicting bugs and other stuff. However, this will remove the data from your device. So make sure to backup everything before going with this method. The steps are:

• Open “Settings” and tap “Backup & reset”.
• Go to “Factory data reset” and tap “Reset phone”

How to Fix Error 495 While Download/Updating Android Apps On Oppo A2

Error 495 is a common error that occurs while downloading or updating apps from Google Play Store. This error is usually caused by a problem with the Google Play Store, and it can be fixed by clearing the cache and data of the Google Play Store app. If you are experiencing this error, follow the steps below to fix it.

In this article, you will learn why the Android error 495 pops up, possible solutions to bypass, as well as a dedicated repair tool to radically fix error 495.

We always like to explore every new feature or the features that already exist on our devices. We have a tendency to be the master of our device and want to know every bit of the handset. Unexpected errors ruin that experience and it is just frustrating to experience these errors. And the worst part is that we have no idea where we are wrong or what we did that led to the error. Same is the case with the error 495 which occurs due to downloading or updating of Android Apps. You may have spent countless hours on the internet to find the right solution for error code 495 but even after following many of the most guaranteed steps sometimes the error still doesn’t go away.

However, this article will provide you various methods to get rid of the Error 495 play store problem that you face and you will not have to depend on any other sources for your solution.

PDF application, powered by AI-based OCR, for unified workflows with both digital and scanned documents.

Reasons for Google play error 495

Android Apps are most commonly downloaded from the Google Play Store with the help of Wi-Fi or Cellular Data. One may come across many types of errors. Mostly the errors come in during the download or update or installing time. Error 495 occurs when the user isn’t being able to download or install an app over Wi-Fi, but the user is able to do the same thing over cellular data.

Technically speaking, the issue is caused when the connection to the Google Play servers, where the app is hosted, times out. Which is unable to resolve by itself.

Also, there could be another reason that it cannot sync with the servers.

Now that we know the possible reasons for the error 495, let us also know how to get rid of it in the sections below.

Solution 1: One Click to Fix error 495 by Android Repair

Tried several methods to make the error 495 disappear, but nothing works? Well, many people have experienced the same frustration. The root cause is that something is wrong with the Android system. You need to have your Android system repaired to fix error 495 in this situation.

Note: Having your Android system repaired may lose existing data on your Android. Backup the data on your Android before the Android repair.

Click here

### [Dr.Fone - System Repair (Android)](https://tools.techidaily.com/wondershare/drfone/android-repair/)

Best tool for fundamental Android repair in one click

• Fixes all Android system issues like error 495, system UI not working, etc.
• One click for Android repair. No special technics needed.
• Supports all the new Oppo A2 devices like Galaxy Note 8, S8, S9, etc.
• Step-by-step on-screen instructions provided to fix error 495 without any hassle.

3,390,486 people have downloaded it

With Dr.Fone - System Repair (Android) , you can easily fix error 495 in few steps. Here is how:

1. Download, install, and launch Dr.Fone - System Repair (Android). Connect your Android to your computer with a USB cable.

3. Select the option “Repair” > “Android Repair”, and click “Start”.

5. Select the Oppo A2 device information like brand, name, model, etc., and confirm your selection by typing in “000000”.

7. Press the stated keys to boot your Android in download mode to download the firmware as instructed.

9. After the firmware is downloaded, the program will automatically start to repair your Android.

Solution 2: Clear the Google Service Framework cache to Fix error 495

Step 1:

Go to the “settings” of your device. Once the series of sections comes up, tap on the “APPS” section.

Step 2:

Click on ‘All Apps’ or ‘Swipe to All’ and the open the section named “Google Services Framework App”

.

STEP 3:

Open “App Details” and the screen shown in the image should come up on your device. As shown in the image, follow the three steps. First, tap on “Force Stop” and then second, tap on the “Clear Data” option and finally go ahead and tap on the “Clear Cache” option.

Following the above steps should solve your problem of Google Play Error 495. And you can enjoy back to using the apps which you couldn’t download or update due to the Error 495.

Solution 3: Reset App Preference in Google play Store to Fix error 495

STEP 1:

Go to the settings section in your device. It will be differently placed for different devices and different users.

Click here


STEP 2:

Once the Settings section is open. A lot of further sections will pop up. No find the section named “Application Manager” or “Apps”. After locating it, tap on that section.

STEP 3:

Now go ahead and tap or slide to a section named “ALL”.

STEP 4:

After reaching the “ALL” section tap the touch button to open menu/properties and choose an option named “Reset Apps” or “Reset App Preferences”.

There’s no need to be alarmed because on clicking the reset option, the apps won’t be deleted but it is only going to re-set them. And hence solving the Error 495 created in the Google Play.

Solution 4: Fix Error Code 495 by installing a VPN app

The Error code 495 can be easily removed in another interesting way too. On downloading a Virtual Private Network (VPN) and then operating the play store automatically solves the error 495.

STEP 1:

Install Hideman VPN (using any other VPN will also make it work) from Google Play store. (If the error persists for this app too then download it from a different app store or by using a third-party store).

STEP 2:

Now open the app and select the United States as the country of connection and press the option named Connect.

STEP 3:

Open Google Play Store and Download any app without the Error Code 495 coming in and bothering.

This fix will work for most of the Google Play Errors and not just only The Error Code 495.

Solution 5: Remove your Google Account & Reconfigure it to fix error 495

Removing the Google account and re-configuring it is a very common method adopted to get rid of the Error 495. Adopt the following steps to complete this method.

STEP 1:

Go to the “Settings” section of your device. Like it was mentioned before, different devices and different users will have the placement of the settings section in a different place.

STEP 2:

Go to the accounts section in the settings tab.

STEP 3:

In the accounts section tap on the Google Account part

STEP 4:

Inside The Google section, there’ll be an option called “Remove Account”. Tap on that section, to remove your google account.

STEP 5:

Now go ahead and re-enter/ re-register your Google account and check if the Error 495 still persists.

Now you have completed all the steps and your problem should be solved.

Solution 6: Fix error code 495 by Removing your Google Play Store Data & Cache

One of the best and most accurate methods in the series of various steps in eradicating the Error Code 495 in Google Play Store is by removing the Google play Store Data and Cache. In order to do so follow the steps mentioned below. After following the steps it is guaranteed that the Error code 495 will be done with and you won’t experience any such problems in the future.

STEP 1:

Go to the “Settings” section into your mobile device. The settings can be accessed by scrolling down and pulling down the drop-down menu and most likely the settings app will be on the top-right corner. Otherwise, it will be found after opening the app drawer.

STEP 2:

Once after opening the settings section, select the “Installed apps” or the “Apps” section.

STEP 3:

Find the “Google Play Store” section and select that too.

STEP 4:

Tap on the “Clear data” & “Clear Cache”.

Doing the above steps will clear your caches of the Google Play Store. Now you have a new google Play store.

Hence in this article, we got to know about the error 495 and the possible solutions to it as well. Also, this article explains how Error code 495 can be removed by 5 different ways. These are the best ways by which you can remove or get rid of the Error Code 495. In case one of the method fails, use the other one to rectify this recurring error 495 on your Oppo A2.