How to Fix ‘App Not Installed’ Error on Android [Without Root]

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How to Fix App Not Installed Error on Android

Probably as an Android user, you might have come across the App Not Installed error issue on your Android device. This error most a times show up when you’re trying to install an application which you download from Google Play Store and any other External source. This is frustrating right? Nevertheless, right this moment, via this article, you’ll be taught how to Fix App Not Installed error on Android devices, then you can finally overcome that annoying pop-up error message and install your chosen Apps freely.

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App Not Not Installed Error do mostly happens on Android devices running on Jellybean, Kitkat, Lollipop, and Marshmallow OS. It so happens that no matter how many times you do try to install an application, the error message still persists and, therefore, the app won’t be installed. Not to worry anymore, because in this article will be the tutorial on how to fix App Not Installed error on Android without root. But first, why not know the reason’s behind this error message? Now, let’s find out below.

Reasons for App Not Installed Error on Android

  • Low Storage Space – Your device storage space might be running low, i.e, it’s filled up. Therefore, there’s no way you can be able to install new applications.
  • Corrupt APK File – You might have downloaded an APK file from third party websites without using the official App from Google Play Store or other trusted Apps Stores. Now trying to install applications from these third-party sites might be the cause for this error.
  • Invalid App Signature – Every application do have designated signed certificate, installing the same app with a quite different signature will surely result in an error when trying to install.
  • Corrupt Storage – Having a device with a corrupted internal (Phone Memory) or external (SD Card) storage, will result to applications not to be able to install on it.
  • Compatibility of App with Android Version – Some applications on the internet are only meant to work on some Android versions. There’s no possible chance of getting these applications installed on newer Android versions, as it would show error.
  • Applications Permissions – The Android OS do allow different applications to have their own permissions, if you, in any way tamper with their permissions, it might result to some apps not to get installed on your Android device.
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How to Fix App Not Installed Error on Android

There are quite a lot of ways in which this error can be resolved, but here we’ll only provide you with the best method’s on how to fix this frustrating issue. Endeavor to read through so you learn.

1. Reset All App Preferences

This problem can be solved if you do reset all app preferences on your Android device. Now, to reset all app preferences, simply follow the below laid down steps.

  • Go to ‘Settings’ on your Android.
  • Click on ‘Apps’ or ‘Apps manager’.
  • Make sure you check all Apps.
  • You can tap on the menu icon and click on the ‘Reset App Preferences’ option that shows up.

2. Change Application Codes

There’s a possible chance of fixing this issue by altering the application codes. If you want to do that, do follow the given steps below.

  • First, and foremost, you should download APK Editor App.
  • Now click open the APK Editor App and tap on ”Select APK from APP” or “Select an Apk File”
  • Search for that App and click on “Common Edit”
  • Now you’ll be able to change the Install Location to any other option which suit’s your device or change the Version Code of the App to an older one that is compatible with your phone.
  • After doing the above, you can go ahead and apply the changes in APK Editor App.
  • Now you should make sure you uninstall any similar pre-installed app and install the modified App from APK Editor.

3. Sign the Unsigned App

For an application that has not been signed, it’s advisable for you to sign the unsigned application. You can use the procedures below to do that.

  • Download and install ZipSigner APK.
  • Now, you should launch the App.
  • You will see the app dashboard. Click on Choose input/output and locate the APK file.
  • Select ‘Sign the file’.
  • After signing the app, you can now go ahead and install the signed APK.

4. Don’t Install from SD Card

If you’re looking for how to fix app not installed on Android devices, then this is another thing worth knowing. The app installer might not completely parse the package from a mounted/external storage. So for you to resolve this issue, you need to move the APK file to the internal storage before installing the Application.

5. Allow Apps from Unknown Sources

Fix App Not Installed Error

One of the possible solutions to fix App not Installed error on Android is to allow installation of apps from Unknown Sources for your device. For you to do this, simply go to Settings>>Security>>Unknown Sources>>Enable Unknown Sources. Take the image above as an example.

6. Clear Data and Cache of Package Installer

Fix App Not Installed Error on Android

Your Package Installer might be having a problem of loading a cached page. You can clear the data and cache of our Package Installer by following the below laid down procedures.

  • Go to your phone Settings.
  • Click on ‘Apps’ or ‘Apps Manager’ tab.
  • Scroll and search for ‘Package Installer’ App under System Apps.
  • You will find two option to either Clear data and Clear cache of the app. (Android Marshmallow 6.0 and Nougat 7.0 users can check for option “Storage” to clear data and cache).
  • Now, you can go ahead and clear the data and cache of the App.

7. Use an Older Version of the App

In some cases, the latest version of the App you want to install, might not be supported by your Android device. If you still want to really use the app, then, in this case, you should download an older APK version of the App from the internet and try installing to see if the error issue is solved.

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Now this is the way you can fix App Not Installed Error for Android devices without root. You can try any of the above steps and surely one must work for you, so you can stop facing this issue, and enjoy installing any application of your choice. Nevertheless, if your device is rooted, we have a solution on how you can fix this on Rooted Android device. Check out the procedure to this below.

How to Fix App Not Installed for Rooted Android Devices

If you do have a rooted Android phone, then you can try to fix this error on your device by using the below provided process.

  • Download and install any root explorer app on your rooted Android device.
  • Copy the APK.
  • Go to System>>Apps and grant permissions to the app.
  • The App should be installed on your device without errors.
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Conclusion

Now you can follow the provided solutions above to fix App Not Installed error on Android. An alternative to this, is that you can also clear and uninstall all previous versions of the app or apps with same resemblance that you want to install. Also try freeing up some useful space, uninstall unnecessary apps and delete junk files. When you do all these, there’s no way this issue won’t be resolved for your Android device. If you’ve benefited from this article, then take a minute to share to others. You can also give us a feedback via the comment section.

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