Why did you downgrade ?wifi75 wrote:I'll explain, the latest firmware of my tv is 2770.
after root I downgrade to 2116.1, but since that moment my sound bar not switch on automatically when tv start.
for this reason I think that the firmware version 2116.1 have a bugs whit soundbard.
So I though update to firmware version 2130.
That's all
You can upgrade to intermediate one which was working with your sound bar...
I do not recommend to update to latest FW unless you have feedback that root is still possible.