I'm new to quads, fpv, betaflight and have searched and searched but can't figure out how to get telemetry to my x9d+. I have the s port wire from my r-xsr connected to the tx pin of the fc's gps port. I selected smart port on the drop down menu of betaflight and enabled telemetry under the configuration tab. I also enabled telemetry in the osd but nothing shows up when I try to discover new sensors in the tx except for rssi and rx voltage.