If you are an Android phone user, you must have come across "Application not installed" error message when trying to install an apk file extension on your Android phone. Today we shall be showing you some common causes with their possible solutions:
Common causes & Possible Solutions:
Insufficient storage space: Your storage space may have filled up with no more space to accommodate new apps.
Free up some space: Uninstall any irrelevant apps and files on your device.
Corrupted app or apk file: This is one of the common issues with apps downloaded from somewhere else other than Google Play Store.
Ensure the app you download is from the official Google Play Store. You can also recheck the apk files you download and be sure they were completely copied or downloaded.
Installation on inaccessible SD card: installing app while your phone is connected to your PC or elsewhere can result in errors because the SD card might be inaccessible.
Make sure your SD card is not mounted or connected to a PC or elsewhere.
Incorrect app install location: Some apps are meant to be only installed on phone memory while some others can be installed on both phone memory and SD card. Trying doing otherwise with the former can bring up this error.
Change app installation location to Automatic or Let system decide.
Corrupted storage (Phone and SD card): This is probably the most common cause of this error. If the storage of your device is corrupted, any app installation will be impossible.
Try changing you SD card if your card is corrupt. In other case scenario, the last solution would be to wipe your device by doing a factory reset either under Settings or by doing a full wipe in recovery mode.
App permission errors or temporary OS glitches could also bring about this error.
Try resetting app permissions by going to Settings >Apps>All>Menu key >Reset application permissions or Reset app preferences.
Apk signature/certificate clash: Installing another version of an app (with a different signed certificate) on the same device will probably result in this error. Installing an unsigned app could also result in this error.
Get the right apk file for your device.
- Reboot the phone: In times like this, first thing to do is to reboot your device. Or just shut down, remove and reinsert your battery.
- For worst case scenarios, format your SD card – copy its contents somewhere else for backup and format.
- Delete file .android_secure/smdl2tmpl.asec from SD card. If the folder .android_secure is empty on file manager, delete it from PC (make sure you show hidden files)
- Download Astro File Manager from Play Store. Open it, click on manage my files [up]. Locate the app you are trying to install but could not because of error "application not installed" click on it and install it. It will get installed!
Some possible conflicts may involve DPI, RAM, or Android version prerequisites. If your system specifications do not meet the requirements of the manifest of that app, you may not be able to install it at all.
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