I want to use the optical output, but it does not work. I have enabled SPDIF . I am running Version 220 2015 (NEO-X5-20150205-220.rar) This is absolutely fine, I have issues with brightness, but this is the best one for that, I have not tried any later versions, as I didnt want to mess this up (again!!) But now I want to use the optical output and looking through the forum, its really hard to tell which one is best. So the question is: WHAT is the best firmware for video brightness (being correct!) and an optical output that works?