My Sony OLED after latest Update

[Epsonfan]

I updated my SONY XR-77A80L awesome picture but the pic goes dark after a few hr, though I have the dimming off . There's something in the service menu that effects the pic?.

 

[lovinthehd]

I'd think that's more a "eco" thing, maybe the auto off timer?

 

[isolar8001]

Sounds like OLED ABL at work....no way to defeat it.