It is recommended to install OpenVPN official client "OpenVPN For Android", this app will send "import VPN profile" and "connect" command to "OpenVPN For Android" app.
"OpenVPN for Android" download：
*** How to use ***
As "OpenVPN For Android" plugin as an example:
1. Install this app and "OpenVPN For Android" app.
2. open this app, click the Refresh button, the new VPN server ip will appear later.
3. Click on "Play" button , the IP address of OpenVPN profile will be save, import and start to connect to the server by pass command to "OpenVPN For Android" app.
4. If free VPN server is not busy, your device will be successfully connected to VPN server.