I am using inav not betaflight, with this firmware: inav_2.0.0_OMNIBUSF4_V6_extends_FIREWORKSV2.hex.zip
providing in this topic: I2c magnetometer not working on Omnibus f4 v6, as gps and mag are working but sbus does not.
Btw, I will post my tries in details as soon as possible.
Thank you in advance.