Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Mini jack audio out is loose

The mini-jack audio out is loose so that when I stick in headphones or loudspeakers the mini-jack "pops out" by the slightest movement.

I have really tried hard to find somewhat solution for it on the net with no result. The only answer I am getting is to change the whole board.

Do anyone know what to do?

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Please list the last three figures of your serial number so we know which machine you have.


The last three is: 66J


What happened with your jack??

Did the cleaning was enough to solve your problem??

I've the same problem but i dont know what to do!!


mine does the same thing. very frustrating when listening to music in quiet library and it pops out...


Apple MacBook Pro "Core 2 Duo" 2.53 13" (SD/FW) Specs

Identifiers: Mid-2009 13" - MB991LL/A - MacBookPro5,5 - A1278 - 2326*


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1 Answer

Chosen Solution

Yeah, this is a broken solder joint. Get your warranty and take it to the Genius bar, or find someone who know's what their doing who can solder it back on.

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The warranty is out. So no smart way to fix it?

And if I need to look for someone is that anyone that knows about Mac or have more specific experience?

I have no idea if this is completely unusual what happened to me?


does the whole jack pop out? if so can't you see where it broke loose? I don't think the whole jack can come out the hole in the aluminum case without damaging the case so what actually pops? do you mean that the male plug that you put in get's almost rejected/ejected when you touch it? If so then it's probably the spring in the jack that has moved or broken. I think this is almost impossible to fix, but you could take a flashlight and check. even a small amount of lint being packed at the bottom of the jack could make this happen. I'd start with compressed air, then maybe use a sewing needle to try and see if you can get anything out of the jack. Also a q-tip with a bit of alcohol on the end (NOT WATER) would work to help clean it out. You may have to take some of the cotton off the end of the swab to get it to fit.


Hey thanks a lot! I'll try and clean the jack hole and see if I'm lucky. I didn't think of that.

The jack doesn't fall all out it just goes 1-2 mm when I sit with the Macbook and move a bit. But enough to loose the connection to headphones.


No, cleaning did not do the job. I have just learned to be careful when using headphones and not getting too annoyed... :-/


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Jesper H Christiansen will be eternally grateful.
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