FlashStart's ClientShield configuration in Android
Open the "OpenVPN for Android" app and click on the "+" symbol (top right) to add a new VPN profile
Click on "IMPORT" and select the certificate file you previously downloaded
You should find it in the "Downloads" folder.
Enter a name to identify the VPN profile
For example CloudProtection (or leave the default one) and click the checkmark in the upper right corner to save the change.
Click on the pencil symbol next to the VPN name to change the settings
Enter the "2username" that you copied previously and choose a "password".
Use the back button on your phone to return to the "PROFILES" menu
Test the VPN connection by clicking on the VPN name. If everything works correctly you can see the message "Initialization Sequence Completed" at the end of the OpenVPN Log.
Now open the "SETTINGS" menu and select the VPN name from the "Default VPN" section
Also select the "Reconnect on network change" field to enable it
Finally, open the "Connections" menu in your smartphone's settings
Click on "More connection settings" then on "VPN". Click on the gear symbol next to "OpenVPN for Android" and enable "Always-on VPN".
Other ways to ask: » How to configure ClientShield for Android. » Configuring ClientShield for Android. How to.