No sound not the usual problems mac pro


hey guys, got macbook pro. came no os installed yosemite version 10.10.2.

thing macbook has not sound @ all. no output device, use search tool here similar came nothing, i've seen solutions erase files, clear memory, etc don't hace files mentioned , i've erase memory lot of times, wonder if maybe physical problem audio card or because nothing make sense anymore.

here shot of audio settings looks like, no output device, sound lock.


[​img]

let me know think

thank you! :)
 

have tried restarting?

, have made sure 3.5mm port free of dust?
 


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