Turn off hdmi cec. set device setup-> hdmi cec to off. (this is the default). why? official oppo bdp-103 owner's thread at avsforum. oppo sometimes releases public beta firmware. although still experimental, it is meant for public testing and is generally safe to use. it has already been tested by a beta team and any bad bugs should have. I hooked mine up to my e6 today and everything was working swimmingly until i turned on hdmi cec on the oppo. now when i power it on, somehow the audio on my tv changes from optical out to my sonos soundbar to the internal speaker and i can't change it back, on any input, until i turn off the oppo.. The oppo mediacontrol app turns your mobile device into a remote that provides complete control over your oppo blu-ray player. the app is able to browse media libraries, control playback of media files, and even turn the player on and off..