They broke it so back to Sony for a fix or if they can't, ask for a full refund so you can get something that works.
I have sony bravia tv model 55x900E and Sony sound bar model ht-ct800. Did a sony software update on the tv and ever since, when you power on the tv it will switch to the tv speakers and won't default to the sound bar even though all the settings are for the tv to use the sound bar. I have completed all the factory resets that are recommended. Nothing seems to work. I hope you can help. Thanks.