Control TV volume with Mibox S remote?

Question

I'm recently switching from a Fire Stick to a Mibox S. My TV is connected a Sonos system via an HDMI port with ARC. Using the firestick remote I was able to control the TVs volume (and by extension the sound bar) and power the TV on and off. Using the Mibox remote, the remote only changes the Mibox volume but not the TV volume. I went into the settings and enabled Hdmi CEC so it should work, but isn't. Any ideas how to fix this?

yourintltv · Accepted Answer

It doesn't. Seems to be a thing with standard Google TV (had the same problems with other Google TV devices as well).

latinriky78 · Answer

It's somehow limited to some TVs, it's a limited implementation by Google, that's why you were able to do it with the Firestick.