I’ve got exactly the same problem. None of the codes supplied by Humax for Sony work with my Sony Bravia KDL-40S55. I can get the Humax FOX-T2 remote to work with my LG DVD player and a Vivanco remote works with the Sony so I guess there is a code missing from Humax. Does anyone have it?
It works. Code is 301. Having looked at the FAQ I saw an entry talking about the remote being vey directional. So I tried again close to the TV and pointing directly into the sensor, and it worked. So I guess the Humax RC is more directional than I am used to.