Please can someone tell me what I am doing wrong, I have just received my Lightbridge and can't get it to work, my Futaba 18MZ won't communicate with the air unit.

I am running Naza M V2 with Lightbridge

When I run the Naza Assistant it can't see my radio (worked perfectly with s-bus on Futaba receiver before I got the Lightbridge)

Updated the LB ground and air units to latest firmware

Calibrated transmitter with ground station in LB Assistant software no problem

I have the video feed working perfectly

The air unit has both solid green lights

I have the hardware setup as per Page 2 of the quick start guide "DIY Connection"

Naza unit LED flashes rapid yellow (Transmitter (TX) signal lost)

Please please please can someone tell me what I am missing, I want to go flying :-)

Now this is so disappointing… I found the problem, the D-Bus cable had the yellow wire on one of the plugs going into the centre hole instead of the outside hole!!!!! corrected that and it works perfectly. Big thumbs down for QC at DJI, The good news is that I am going flying today