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MacBook Air no audio output device found ???????? *please help*

Dear all,

since yesterday my Mac Book Air can not find audio output device anymore, so no sound.

Its actually strange because i was running the Hardware Test (Boot + D and so on) but it does not show any failure or problem.

Could you please help me? Anybody has any idea?

Thank you
Carsten

MacBook Air, Mac OS X (10.5), Macbook AIr

Posted on Oct 2, 2008 4:29 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 15, 2012 4:00 AM

Well the previous fix lasted all of 2 hours. Now I have the sound working again by resetting the PRAM. Here's how;

  1. Shut down your Mac.
  2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

We'll see how long this fix lasts...

411 replies

Jan 7, 2013 6:02 PM in response to Carsten.Roth

Just wanted to add that my original MBA 1,1 has had the sound problem a for a few months. This is no longer my main machine (I have an iMac and an ipad), but I think I'm going to add an SSD, new battery, and fix the audio while I'm in there. This is in place of buying a new laptop, despite having a new need (I need to travel for work). I seriously paid a price for being an early adopter with this thing and even when I bought it I knew I shouldn't have (it was underpowered for my needs). But I think by adding an SSD and a new battery I can hopefully get another year out of this thing.

Jan 18, 2013 11:53 AM in response to Carsten.Roth

I dont know if its been posted, and to be honest I have NO IDEA WHY THIS WORKS. BUT IT DOES.


I followed the video then thought to myself "The placement cant matter, its gotta be the securing the connections and straightening the wire thats fixing it, apple pays engineers to build these things, imma stick with them" So i placed it back under the battery, Didnt work. Opened it up and did it the way the video says (cable above the battery) worked perfectly. To me it makes no sense, but it works. Heres the video, Enjoy.


http://www.youtube.com/watch?feature=player_embedded&v=RusxiDa6bQ4

Jan 27, 2013 11:52 AM in response to WYkid

My suspicion is that the position of the audio flex-cable apposed to the battery corrupts the ribbon over time. Whether that is due to the heat or other mechanics is beyond my deduction; still, I think it is flawed design to have the cable run directly under the battery. Perhaps that is why an adjustment will fix, albeit temporarily, the connectivity.

WYkid, if you have not replaced the cable yet, and in the event that you receive mail 265mi from the nearest apple store, I would go ahead and order this cable and the reccomended tools from ifixit.com. The video instructions make it an easy fix. AND when you install the new cable, you can seat it ABOVE the battery for a potentially longer life... There maybe onlines stores with cheaper options, but $30 is not a bad deal for sound. My sound has been awesome since I replaced the cable 3 months ago. Cheers!


http://www.ifixit.com/MacBook-Parts/MacBook-Air-Original-Audio-Cable/IF188-014?u tm_source=ifixit_guide&utm_medium=guide_intro&utm_content=required_items&utm_ter m=macbook_air_models_a1237_and_a1304

Mar 8, 2013 10:33 PM in response to Carsten.Roth

My 2010 Macbook Air audio stopped working. Based on this forum it seems it's the audio cable. I bought a new audio cable and replaced the old one and the whole work took me about 5 minutes. Now everything works.


http://www.ifixit.com/Guide/Installing+MacBook+Air+13-Inch+Late+2010+I-O+Board+C able/4507/1


Need the following part:

I/O Board Cable for MacBook air A1369 821-1143-B

May 12, 2013 1:33 AM in response to Carsten.Roth

hey guys i may have figured it out, i had the same problem, but i resolved it, okay first grab an audio cable, go to sound under your system pref then click output. if there is no output at all there thats okay well anyways then plug in your audio cable,adjust the sound a little bit if it shows u have sound, good cuz you have the audio cable in, well then you pull it out, adjust volume a little bit and just keep doing that untill you hear the sound adjustment ding and there you go it is fixed then magicly it will show up in your mac that you have sound from your internal speakers, if that didnt fixit then in the sound settings click on use audi port for: then click output when u have headphones in if that didnt work you should take it in to an IT group at best buy or better yet take it to an apple retail store they may be able to help/do it for you.🙂

Jun 16, 2013 4:13 AM in response to rynelandt

Also my MBA (mid 2012) stopped making sound "No Output Devices Found". It happened after I applied the latest upgrade to 10.8.4. I'm sure it's a software problem because I still have startup chimes, and I also have sound when I boot from a Carbon Copy Clone of my previous system.


I tried about anything I could find in this thread and elsewhere:

- PRAM reset

- SMC reset

- Fix Permissions

- Fix harddrive

- Re-apply updates (Combo)

- Delete the bezel preferences


I also noticed that when I try to play a YouTube movie, it freezes after about 10 to 15 seconds.


It's quite frustrating. Of course I'm just out of warranty as well.


I think there must be some kind of software conflict, but I don't know how to find out.


Anyone knows something else I could try?

Jul 20, 2013 6:50 AM in response to Noiseles

It was definetly a not perfectly installed 10.8.4. The apple support told me to start the computer wait shortly and hold cmd+R. then there was point reinstalling. I hope it was named like that, it was 2 days ago. but it was quite selftelling. I did that and everything works fine as usuapple 😀. Hope this helps you.

Perheps important to metion: before that I already installed the Combo Update AND afterwards the whole 10.8.4 over the App store again. This didn´t help. It has to be in the RECOVERY mode, as mentioned above !

Good luck !

Aug 11, 2013 10:59 AM in response to rynelandt

Yes, unlikely as it semed, this solved this problem on a 2007 (I bought it because they last a long time) imac. I cannot be absolutely certain of the trigger which caused the loss of sound output but the problem certainly arose at about the time I upgraded the operating system to Mountain Lion. Internal speakers continued to work ok.


I used headphones and for what is worth I plugged and unplugged them a couple of times and then (this seemed to be the important bit) adjusted the volume in the system preferences and the sound returned after what has been several weeks without use of a Bose speaker system.


Thankyou rynelandt.

Sep 30, 2013 7:29 AM in response to Carsten.Roth

Fixed!


I first tried every solution in this thread, with no success. I reset the PRAM, fixed file permissions (disk utility), rebooted multiple times, plugged in USB-headset, plugged in minijack, and even tried to install the latest combo update (which for some reason fails). The sound device was missing also when i booted into safe mode.


However, I did manage to fix the problem by booting into recovery mode (hold cmd+r while booting), and then simply reinstalling OS X. This doesn't erase or change any user content, so everything will be just as before when the installation is finished. (But as always - do have a backup just in case!) It just reinstalls the system files. And, the sound device problem was fixed. Yay!

MacBook Air no audio output device found ???????? *please help*

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