Solex TX not connecting with ardupilot

Hi Community, we are trying to connect Solex Tx(Version 1.2.3) in herelink with the plane firmware v4.3.0 with cube orange plus.
We are not using camera module with the setup.

Can this cause any issue with the connection?, Please advice how can we connect arduplane with the solex tx.
It’s saying “Looking for vehicle type : No Vehicle”

Thank you in advance.

This is most often due to mismatched pairing or an incompatible firmware match between the air unit and ground unit.

But then QGC also shall not connect in that case, QGC seems to work flawlessely but the thing with QGC is that I can’t set up short and long press on buttons.

I have attached more details here like, hardware configuration, hardware and firmware version of the ground and airunit here —>>>> Solex TX not connecting with ardupilot - Cube Autopilot - Cubepilot