820-00165 audio

[wirelessplanet]

Got a 820-00165 that the audio goes in and out. its not constant. some time copmuter will boot up and have no sound sometimes it will. I've changed i/o board twice and hasn't fixed issue. board looks clean, no liquid damage or drops.

 

[2informaticos]

Did you change LIO flex too?
Inspect LIO connector from MLB under microscope.
OSX recognizes audio device in system report always?