OLED 55C7T is not supporting atmos in truehd container when playing from Hard drive after firmware update

[hellojavad]

Hello guys

I can't play Dolby atmos in TrueHD format when playing from hard drive after I update my firmware and only DD+ is playing.

I reset my device also but nothing changed.

any Idea what to do?

[Cody k]

This is because the TV outputs audio via ARC, or its internal speakers + Optical. Neither of those methods supports TrueHD or any lossless audio. ARC only supports DD+ with Atmos metadata, and Optical won't support Atmos in any form. Your option would be to find a device that connects to your receiver by HDMI, like a 4K Blu-Ray player, which can play media files from an external drive. Or, y'know, buy the movies legitimately.

[hellojavad]

@Cody k TV supported and played this metadata from time I bought TV  but problem showed up after firmware update.

[Cody k]

7 hours ago, hellojavad said:

@Cody k TV supported and played this metadata from time I bought TV  but problem showed up after firmware update.

That sounds unlikely. I've had a C7 for eighteen months and it never supported lossless audio. The TV does not have and never had a transcoder for those codecs. 

[hellojavad]

I think that's the reason tv can't decode truehd as I upgraded firmware from a different region by USB. it supported at the first time.