I have similar issue since yesterday's update to 9.4.0.4174. The Roku starting showing black screen even after unplug power and plugging power back on. Performed a full reset which works to have something show on screen until after the setup procedure step where it is detecting my TV. This is where the screen turns black, I can hear the remote sounds, and at times I get the static screen briefly or a full no hdmi device detected. This is with my Streaming Stick+ plugged into soundbar. When I plug directly into TV, the Streaming Stick+ works. There seems to be some video auto detect issue for me. I would like to have this fixed to connect the Roku to my soundbar for better audio options (Atmos).
Roku model 3810X - Streaming Stick+
Device ID - 2139AD878399
SW ver - 9.4.0.4174
Serial # - YHOODP878399
