Update os 10.5 on roku 3941x prevents hdmi-cec from functioning and kills audio from the connected receiver. Tried to roll back to 10.0 through the system menu but there was no option. Is there another way? Why can't you leave well enough alone?
Can you please provide more information about the issue you are experiencing:
-Roku device model, serial number, device ID, and software OS/version (these can all be found in Settings > System > About)
-does this issue occur on a specific channel? if so, what channel and what version/build is the channel (this can be found be selecting the channel on the Home screen and pressing the * button)
-tracker ID when this issue occurs (when you see this issue occur, press the Home button 5 times, followed by the Back button 5 times)
-steps to reproduce the issue you are seeing
With more detailed information, we will be able to assist you further.