I have MED500X and when I instaled firmware v4.0.4 I lost voice audio while playing mp4. Backround music plays normaly but no speech sound on mp4 movies. On other formats (avi and mkv) everything works fine.
My mede8er is connected to TV with HDMI and to my stereo amp. with cinch connectors (classic L and R).
Sound is OK when I use TV speakers, but on stereo amp. I have backround music and no speech sound.
On firmware v3.0.4 the sound worked both ways.
Also I tried to install both versions of firmware v4.0.4 (NO_HD and INC_HD) and problem still remains.
In audio setup i tried both options dowmmix 2CH and passthrough but same result.
If anyone has any suggestion please help!
Jerko
p.s. I don't want to downgrade v4.0.4 to v3.0.4 because on older version some mkv movies doesn't work.