Go to your phone’s Settings.
Go to Security & privacy > More settings.
Tap on Install apps from external sources.
Select the browser (e.g., Chrome or Firefox) you want to download the APK files from.
Toggle Allow app installs ON.
Go to your phone’s Settings.
Go to Biometrics and security > Install unknown apps.
Select the browser (e.g., Chrome or Firefox) you want to download the APK files from.
Toggle Allow app installs ON.
Go to your phone’s Settings.
Tap Security.
Under Device administration, toggle Unknown sources ON.