Hi guys, i'm an owner of a soundbar Hw-Ms650.
2 days ago, i've upgraded the firmware to the lastest version (i've not done any upgrade since i bought it).
Now, when i start my bluray player, Lg UBK90, the bar is switching from HDMI source to TV ARC and then, after 2 seconds, to D.IN.
My display, an optoma UHD60 projector, does not recognize anymore the source.
There's a way to downgrade the firmware to the factory setting?