How to downgrade firmware version, because the Q90R with 1012.6 firmware has very low subwoofer

[Levstyle]

I got the same problem as mentioned in the url

https://eu.community.samsung.com/t5/audio-video/hw-q90r-soundbars-low-subwoofer-with-1012-6-firmware...

My Q90R soundbar got a very low subwoofer after updating firmware from 1010.5 to 1012.6，Lots of people who upgrade the firmware to 1012.6 have been suffering the absence of subwoofer。

Thanks you all.

[pepsinio]

Great!

[Aber1967]

My sub is still ok after the update to 1012...but i've completely lost the 2 rear speakers, no sound at all...any suggestions?

[pepsinio]

Don't buy Samsung.  I just bought another Samsung product (s21 ultra) and also has defects from day 1. Used to be a very loyal customer in the past, but going forward will avoid anything with Samsung badge.  

You can always try with support too You can try to change the channels used for the back speakers.

[Nforce]

Tell me how you change channel from subwoofer....?  Mine keep on losing connection to the soundbar every 2 minutr...