Vadirocks bro. Little update about the sound issue.
Here is the HD channels without audio. Zee TV HD, &pictures HD, Zee Cinema HD, D2H Cinema HD (Test Signal), Ten HD, Nat Geo wild HD, Fox Life HD, TLC HDWORLD, TravelXP HD. There is no audio at all in this channels. Some has 2-3 feeds but none of them has audio. No DD option in language setting.
I have noticed one thing that except above channels maximum other HD channels has 2 options in "lang" option. 1. Hindi or English 2. Hindi or English Dolby Digital. If I select option 1 then no audio. If I select option 2 audio works fine.
History HD has 5 option, Hindi and English: No audio. Tamil, Bangla, Telegu works fine.
CNBC Prime HD has 2 option. English and AAC. English works fine and no audio on AAC.
But didn't find anything about missing audio on some SD channels like Al Jazeera, BBC, CNN, Russia today.
Software update: Trying from yesterday. no success yet. same error.
Customer ID is available in image of STB backside. And registered with the name of "Sanjit Das".
Thanks