Open the app and tap the in the top left corner.
If a pre-made config file isn't working, you can manually configure the app using these general steps: Stark VPN Reloaded - Apps on Google Play
: The Stark VPN Official Channel and Stark VPN X Channel are primary sources for the latest "tweaks" and server updates. How to Install and Setup Stark VPN Reloaded
: Provides direct download links for Stark VPN files along with troubleshooting guides.