Install OpenVPN for Android by Arne Schwabe. Open the OpenVPN for Android app.
Click the plus sign to add a profile.
Give it a name, e.g. OpenVPN via Stunnel.
Click the Import button.
Pick client.ovpn from your Download folder.
Press the Save button.
On the row for the client profile, click the settings icon.
On the Routing tab, make sure Bypass VPN for local networks is checked.
Also on the Routing tab, check the box for IPv4 Use default Route, and do the same for IPv6 if you use IPv6
On the Advanced tab, check the box for Enable Custom Options, click Custom Options, and add a new line: route 3.86.252.179 255.255.255.255 net_gateway
Replace the sample IP address in the above line with your actual server IP address
If your version of the app has an Allowed Apps tab, then exclude the SSLDroid app, so that it does not get into a routing loop from OpenVPN to SSLDroid and back again repeatedly
Connect OpenVPN via Stunnel.
Click the plus sign to add a profile.
Give it a name, e.g. OpenVPN via Stunnel.
Click the Import button.
Pick client.ovpn from your Download folder.
Press the Save button.
On the row for the client profile, click the settings icon.
On the Routing tab, make sure Bypass VPN for local networks is checked.
Also on the Routing tab, check the box for IPv4 Use default Route, and do the same for IPv6 if you use IPv6
On the Advanced tab, check the box for Enable Custom Options, click Custom Options, and add a new line: route 3.86.252.179 255.255.255.255 net_gateway
Replace the sample IP address in the above line with your actual server IP address
If your version of the app has an Allowed Apps tab, then exclude the SSLDroid app, so that it does not get into a routing loop from OpenVPN to SSLDroid and back again repeatedly
Connect OpenVPN via Stunnel.