The red symbol means the driver is not installed.
Did you click the green button to install?
The OpenSPA image installs the drivers automatically if you turn on the box with the USB tuner connected.
Is it possible you installed the kernel drivers?
There are two different drivers, the kernel drivers and ours, but they are not compatible. If you install the kernel drivers, you won't be able to install ours. My recommendation is that you install the image with the tuner connected. After the first reboot, it should work automatically.
If it doesn't work, send a screenshot of how it looks in the plugin and run `dmesg` via Telnet and send us the output.