Mac Air- Sudden sound disappearance

Just like many of the Mac Air users, my sound suddenly disappeared. NO sound, no icon. I tried every suggestions recommended in this forum. Finally I brought it in to the Genius Bar who couldn't fix it and had to send it in for service.
After 2 days I got a phone call to inform me that the problem was caused by the dent on the cover and that it will be $400+. I don't remember any dent and based on what I've been reading in this forum and others, it seems to be other problem instead of any such dent!
Although I have Apple Care, changing the hard cover is not covered by such insurance.
I don't know.. I feel like they are just blaming on such because they don't know what is causing it. It has been only a few months since I got my computer. It really makes no sense that a computer that is advertised as a sturdy one is actually so fragile. I think what they are telling me is total BS...

My MBA had no sound for a while, there were no hardware to choose/select in the system preference nor in About this MAC option.
I've tried everything possible (other then sending it in for repairs) to restore the sound.
Well long story short. I had order a hard shell cover for my MBA. During the process of snapping on my cover, my sound came back! I couldn't believe it, I thought it was from something other than the MBA. I realize during the process of putting on the shell cover, I had to apply pressure at specific points on my MBA. I applied pressure to each location where the cover had a snap lever.
I believe this pressure may have push in the cabling / pins for the sound card. Since then I have not loss my sound capabilities.
I thought it might have been a fluke. Therefore I shut the MBA down and restarted it and I heard the startup sound. I did this several times to ensure it was working properly.
So far it has been two weeks and sound still works!
What do you have to loose? Try applying pressure (not too hard though) on the sides of the MBA, along the left and right sides of the monitor and the left and right of the keyboard. It may or may not work, but it is worth a try before sending the MBA in for repairs.
Good luck and I hope it works for those who are having sound problems with their MBA.
Regards,
I Am Webhead

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Try SMC and PRAM resets:
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....and I'm trying to see videos on my Sony TV from my Mac Air, for that purpose I've bought a Thunderbolt / HDMI Encore electronics adapter. (There's a picture below....)
Everything goes well, apart from the issue that the sound is not coming from the TV but from the Mac Air. Is there any way to configure the port properly ?
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If you have a newer MBP, you need what is illustrated in the following two images.:
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It all that is in the system.

Closing up the book is a bad idea when she is hot.
The fan tends to move air via the keyboard as well as the vents on the bottom.
Prove it your self; hold your hand over the right side of keyboard and it is relatively cool. However on the left half of keyboard heat is rising; also from left most side of case.
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Message was edited by: barkingmad

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It catches the signals of the neighbors connections.
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Restart or log out then back in.
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These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
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Mac Air- Sudden sound disappearance

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