Once the download is complete, pull down your notification bar and tap the notification.
After the installation is finished, it is a good practice to go back into Settings > Security and turn Unknown Sources back Off to keep your device secure. Download APK File [Android 5.0] v1.03
Alternatively, open your folder (usually found in an app named "Files," "File Manager," or "My Files"). Tap on the file named something like [AppName]_v1.03.apk . Once the download is complete, pull down your