As a security measure, Android phones are set to disallow app installation that are downloaded from third-party and unknown sources. If you downloaded an app or APK file from another source other than Google Play Store, you won’t be able to install it by default. When you tried to do so, the system warns you that your phone is not allowed to install unknown apps from this source for your security.
To install an APK not downloaded from the Play Store, you need to enable the ‘Unknown Sources’ option from Settings. Here’s how you can install APK files on Tecno mobile phone which is running on HiOS V6.
Head over to the Settings on your Tecno phone, then navigate to App & notifications > Special app access > Install unknown apps.
Find the app you like to grant it the permission to install unknown apps, touch the toggle to enable ‘Allow from this source‘.
Installing apps from unknown sources extra tips
- Note that your phone and personal data are more vulnerable to attack by unknown apps. By installing apps from this source, you agree that you are responsible for any damage to your phone or loss of data that may result from their use. So don’t allow unknown or untrusted app to install apps, or install an app from an untrusted source.
- Once you turned it on from your phone settings and managed to install the app you need, you should go to turn it off immediately.
- Different Android or HiOS version may rename the setting to Install unknown apps. On my Tecno Camon 15 which is running on HiOS 6 and Android 10, it is named as ‘Install unknown apps’, ‘Allow from this source’. On other Tecno phone, it may name the option as ‘Unknown sources’ like many other Android devices or else.
- Also this option may be found in different locations on different phone models. That’s why you may be told to find this option from Security, Apps & notifications, or other places.