Install OpenVPN Connect
Get OpenVPN Connect from Google Play, then open the app.
Download the Android appOPENVPN SETUP
Install OpenVPN on Android
Install the app, import your file and connect.
Import your VPN file
Open your downloaded .ovpn file and choose OpenVPN Connect. Or open the app, tap Add, then File, and select the file. Confirm the import.
Connect
Choose the imported profile and tap Connect. Enter your VPNNu username and password if asked, then allow Android to create the VPN connection.