There is only a red LED, displayed when booting or if the device is in standby.
It sounds like you haven’t plugged the USB remote receiver in. If you wish to use the supplied remote control, you’ll need to plug that in. It is a small receiver and would have arrived taped to the back of the PE bag which your remote control arrived in. Once this is plugged in, the remote should then work as expected.
The pairing procedure applies to all generation of OSMC remotes, but obviously needs the USB plugged in.