When attempting to download and install an app with a .apk file extension to your Android phone from anywhere other than Google Play, the error code “App not installed” is likely to be generated. Often even though you download applications from Google Play to Android phones, there will still be an error with the Android app that has not been installed.
Android App that is not installed is no longer an unidentified error code during the installation of the app because it is faced by many people on a daily basis. “App not Installed” error message typically occurs when you try to download and install an App with a .apk file extension from somewhere other than the Google Play Store.
The error is quite confusing at first, but it makes sense when you understand that this undefined error code is neither a software problem nor a hardware problem during the installation of the program. It is a direct consequence of what you’re doing with the phone.
The Main Reasons for “App not Installed” Errors are:
- Lack of space can be a problem for you. If you run out of space on your smartphone, you won’t be able to install the app. If you store too much data on your Android phone, you can’t install the downloaded application on Mobile, for sure. However, as Android devices are getting more and more storage, insufficient storage is rarely a reason why Android app does not have an error installed
- The problem may also be the incorrect location of applications. If you cannot find the correct location for the application you want to download, you will not be able to install an application on your Android device. Apps function best when installed in the internal memory of Android devices, and some apps can only be stored in the internal storage of smartphones. If you are not saving the device in a suitable place, it is likely that an error will occur with an Android app that has not been installed.
- If the place where your apps are downloading is the SD card but your device can not detect the SD card on your phone.
- If you download a file from an unknown source, which is somewhere other than Google Play, due to source and security issues you can get this error. If you download apps from anywhere other than the Google Play Store, usually app files can’t be installed smoothly on your device. Downloading apps from other platforms is still ok, you just need to check its name for the extension and make an effort not to install these corrupted files.
- If the file you’re trying to install is corrupted, the android application won’t open the file and you’ll get the error message.
- Application operations running in the background are sometimes set to not allow third-party program installation, it is also one of the reasons why “App not installed” device error occurs on Android.
Back up Your Android before getting into the fixing of the Error:
Step One: Navigate to settings in your Android device and then tap on the Backup and Reset option in the Settings.
Step Two: Tap on the Back up my data option. Now the backup will start. Make sure the backup is complete.
Fixing the “App not Installed” Error:
Restart Your Android Device:
Restarting your Android Device easily and simply will also fix the issue. Hold the power button to restart your device for longer than 2 seconds, and a message will pop up asking you to shut down or restart. Tap restart and you are ready to go.
Download Apps from Google Play
Google Play is the best source to find and download any application. If you want to avoid the “app not installed” error, Google Play should be your choice to download the applications.
Step One: Open the App drawer and click on the Google Play app.
Step Two: Search the app you want to download and click on Install.
Step Three: A prompt will open, click on accept. Then your app will be downloaded soon.
Check the Application Installation Location
Many applications cannot be downloaded to the SD card, and some of them require an SD card. So, you need to check the location of the file to prevent this mistake.
Step One: Open the setting app from the App-Drawer and open storage.
Step Two: In the storage, you will find SD card and internal storage. From here you can easily see the location of the app and move it to the other storage.
Users are recommended not to tamper with the location of the device and let the app determine where it should be put. Installing applications in internal storage is always the safest.
Check SD card, Mount:
While your SD card is properly inserted into your Android phone, it can still be inaccessible at times. The SD card can be made available by installing an SD card. This is how the SD card can be installed.
Step One: Start Go to Settings in the App-Drawer and select Storage.
Step Two: Click the Storage Details tab on the Mount SD card.
Restart your smartphone and try downloading the Application now.
Format SD Card
If the Android app fails to install an error due to a corrupted SD card, the formatting of the SD card is required. Nevertheless, please make a backup of the data on the SD card so you don’t have to encounter any data loss.
Step One: Start by navigating to settings using the app drawer and select Storage.
Step Two: Select the Format SD Card and then remount as the 4th Method.
Avoid Installation from SD Card
Most of the time when you are downloading from the external sources, your device will not accept the files. The reason is about the corrupted files, so you should avoid doing it on the SD card. But what you can do is to download the APK editor. It will let you install the app in the internal storage and will make sure your device is accepting files from external sources.
Sign the Unsigned Application:
Sometimes the unsigned application causes issues while installing, which causes it to pop up with, “App not Installed” Error. To sign the unsigned app, Google Play will help you to download the Zipsigner app. It’ll help you get the signed app installed.
Step One: Download the ZipSigner application from Google Play.
Step Two: Launch the ZipSigner Application.
Step Three: On the dashboard, you will see 2 option which is input and output.
Step Four: Tap on input/output and sign the app.
Step Five: Now select sign the file option and install the application.
Reset App Preferences
Often because of the device references, you have set you can see the application error not installed.
Step One: Open Settings and go to Application Manager/Apps.
Step Two: Under All apps screen, tap on the three-dot icon at the top and select Reset app preferences from the menu. A pop-up will appear asking you to confirm your choice.
Clear Data & Cache of Package Installer:
Step One: Navigate to the Settings app on your Android device using the app drawer.
Step Two: Navigate down to find the Apps menu in the Settings. With the entire list of apps on your phone in front of you, scroll down to find Package Installer.
Step Three: Press the Clear Cache button and confirm your action.
Step Four: After clearing the Cache, Reboot your device by holding the power button down for 2 seconds and tap on the option of Restart.
We hope these methods will help you to fix the “App not installed” error.