MacbookAir no Sound

My Problem

Suddenly my macbookair run out of.... sound. Even though I could see the speaker icon on the top bar, under output tab on System Preferences the device wasn't recognized...

My Fix

Firstly I bought MacBook Air audio card I replaced it but this didnt fix the problem, then I ordered the audio cable, but that didn't solve my problem too. Then I took off an audio card from an other MAcbookAir, I plugged in my Macbook Air and it worked like a charm! Well, the problem was that I had ordered the wrong type of audio card, I should have order macbook Air ORIGINAL Audio board.

My Advice

Be sure about the type of hardware you are going to buy. Be patient and stronger than market think...