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2.26 or 2.4 GHz / White plastic unibody enclosure

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My headphone jack glows with a red light

After accidentally pulled my headphones out too fast and now the red optical out light is shining in my headphone jack.

Ive tried everything to try and fix it, like a tooth pick on the bottom of the optical switch but nothing happens.

Could there be a way of disengaging the head phone jack but fixing the built in speakers, because i never use the head phone jack.

Or a software that fixes the optical out light?

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I tried all these solutions, and nothing worked for me. I've looked with a magnifying glass and there's not much going on in there. Mine was strange too. The red light was on, but I was still able to switch between sound types, but the headphone sound was really scratchy.

In the end I just bought a USB audio interface for $10, which as a workaround, works just fine. I plug my speaker system into that.

Just want to put it out there, that there are also optical to analog converters for not too much money, so if you're really stuck, you can do that instead of forking over big cash.

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已选择的解决方案

Your digital audio out has switched on. You can insert a plastic toothpick in the hole and try and switch it off. The switch should be at the 3 o'clock position and go towards the 6 o'clock position. Some people also have had luck inserting their headphone jack and pulling out a few times. Another recent report was that inserting the headphone jack and turning it in the hole helped.

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And if those solutions don't work, fear not ... all you have to do is replace the logic board!

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I've tried that but i read about a something with a software where you can choose different outputs. I think the switch in my headphone jack is broken because i excerpted a little bit of force last time i tried it.

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I don't know about a software fix. If you're frustrated with trying to fix it, get a new pair of eyes and hands to read how to fix it and give it a shot. I have never heard of anyone actually breaking this switch.

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Hey Mayer. Can you describe the shape of the switch more? I'm currently having the same problem, and none of the other solutions are working. Is the switch at the end of the hole near the LED, or is it on the side of the cylinder somewhere? If I knew what I was looking for, I'd surely be able to find it. Thanks.

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This worked first try. Thank you!

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最有帮助的答案

put your mouth directly on the port and blow as hard as you can while the mac is on. Trust me it works. I struggled for hours before i knew it actually works. It is worth the few seconds. Cheers.

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This worked perfect for me. I was struggling, trying to find a way to fix it, until i found this, thank you. Ignore other complicated solutions. No toothpick needed.

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thank you very much for this idea,worked perfectly.

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Blowing in it worked!!!!!

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Holy crap, I was an apple certified tech for half a decade, and I'd never heard of this. Totally worked on a Mid 2012 Unibody MBP.

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Boom! worked first try.

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I just had this problem and I was completely flipping at having to replace it! But i just got a match, and moved it around a bit inside the jack then blew on it. I think blowing on the jack helped get something that was jamming the jack but i hope that helps!!! :)

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I had to check that itś November and not April! I found this thing with the red LED in the 3.5mm output hole after rebooting for the first time after installing Mint, the solution was to change the sound settings from analogue 2.0 stereo to analogue 2.1 stereo. The reason for this was that the right channel had been using both its own speaker and the sub, whereas the left channel was only using its own speaker, this can be tested in sound settings but the case speakers are designed as a 2.1 setup and now that theyŕe running that way, there is no red glow from that socket. I tested with headphones in, but they work in exactly the same way regardless of whither you remember to enable 2.1. Possibly the red LED comes up regardless of the nature of the audio fault? Either way, check that your output is set to 2.1 as apart from anything else, onboard sound is less bad when all three drivers are working!

With the output set at digital, the red LED comes up but no sound is heard at all, the fact that the respondent above identified this as a cause of the trouble makes sense but why not simply switch to analogue - making sure to select 2.1 - in sound settings, which has had the exact same effect? ;-)

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Wow this worked first try!

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Hi,

I had the same problem, My internal speakers were not showing in system preferences, but when you turn on the MacBook pro, you hear the gong, so I know my speakers was working ok

so I used compressed Air in the jack port...Nothing

tried to clean the jack port...Nothing

Poked things in the jack port...Nothing

reset the VRAM...Nothing

so I thought outside the box, So I squirted some good old WD40 into the jack port (the Macbook Pro was switched off) then I pushed in and out a 3.5" jack in the port a couple of times and then left the Macbook Pro powered off for about 40 mins, then when I powered the Macbook Pro back on

BINGO, my internal speakers are now working OK....YIPPEE

So I am guessing that the WD40 freed the stuck switch in the jack port.

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NEVER use WD40 in delicate contact surfaces! This time, you were lucky because you got away with it. That stuff is purely for displacing water in hc applications, if you must use something in lc locations like this, then use contact spray such as Servisol S10. WD40 is a mixture of paraffin and DERV fuel. If you're running Mac OS on your MBP, then use a live Mint, Ubuntu or Debian usb stick and boot from that to access the required settings and enable all three drivers by selecting 2.1 analogue mode, this will then solve the problem if you're using Mac OS and changes will be saved.

One question to those who poked or blew: Does the digital output come back up if you select digital audio out or connect a digital device? No red glow showing means that this ill-judged messing about has damaged the internal DAC which in turn means that the sound won't work nezt time you want to connect to a Tosh link or optical RCA device.

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Just for the record, audio jacks seem to glitch a lot with Macbooks (I've seen happen with both my 13 and 15 inch) so I would highly advice to plug/unplug headphones as careful as possible, cheers

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Hi all,

MacBook Pro Mid 2012,

Using Air Pressure , set ~15 psi

,and blow into head phone jack hole , works right away.

Thanks for the guy who 1st share and others who keep share this tip.

Stapana , Los Angeles.

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is this solution permanent for you. i have to continuously do it. any tips?

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