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Question: Popping Sound, MBP 2016

I have heard a strange noice from my MBP, and am not sure if this is expected or not. Model is MacBook Pro 2016 with Touchbar, 15 inch, Radeon Pro 460, 2.9GhZ i7, 2TB SSD.


The sound occurs rarely, there may be several days or more straight that I don't hear it, though when it occurs, it may happen 2-3 times in a half hour period. There is no association I can make with what I'm doing at the time, so I'm unable to recreate it. The sound is a single hollow "popping" noise, similar to if you slowly squeeze a plastic bottle until it crinkles. The sound is not very loud, but clearly audible, and sounds as if it is coming from approximately behind the trackpad. I've had no other notable problems with this computer to date, have made no modifications to any hardware, or used it in any abnormal way.


I'm not terribly bothered by the sound itself, but I'm aware that the battery is located roughly behind the trackpad, and I worry that an expanding battery might sound like this. The case is not flexed or distorted in any way, there is no abnormal heat being generated, and no smoke, smells, or fumes. I think this is unlikely to be the cause, but is serious enough that I would like an alternative explanation before I disregard it. Alternate explanations might be abnormal activation of haptic feedback, or flexing of internal components as adhesives or seals continue to cure since manufacturing (laptop manufacture date 12-19-2016). The OS X battery status is "Good", "No errors", Simplo model bq20z451, battery manufacture date 12-2-2016.


Thanks for any help!

MacBook Pro with Retina display, macOS Sierra (10.12.2), 15 Inch, Radeon Pro 460, 2.9GHZ i7

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Apr 7, 2017 2:48 PM in response to Michael DN In response to Michael DN

I have the same noise coming from the back of my MacBook Pro. Mine was fine until 2 weeks ago, when one evening started popping and cracking from the back. After some research on the internet I found that a lot of people have the same issue and most think it is heat related. If the laptop is open, and is in my lap, it will crack and pop every couple of minutes if I use it normally. If I use an app that will turn up the fans and the heated air is pushed through the back vent below the screen it will not crack at all. This made me think that the noise is in the screen part of the laptop and is definitely activated if the temperature is lower.


I HAVE FOUND WHERE THE CRACKING AND POPING NOISE IS COMING FROM.


Pick up the laptop, with the screen open at 90 degrees and press right at the bottom of the screen assembly in the middle.

It will crack and pop like a candy.


Now, I think the problem is actually from the hinges, as there is some natural flexing in the aluminium back of the display. I think the heat has affected the glue or some plastic mount in the display assembly.

I have looked at the iFixit teardown pictures and theres is no hinge in the middle, but there are 2 contact strips in the middle. I hope this is the same for everyone and I hope Apple will fins a solution and a fix.


Please let me know if you guys have tried this and if is the noise comes from the same place.

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Feb 17, 2017 2:46 PM in response to Michael DN In response to Michael DN

I found 2 videos with the popping sound on YouTube:

https://www.youtube.com/watch?v=umx5MVeeq_o

https://www.youtube.com/watch?v=oST0bDjSjDw


I hear it several times a day. I can't tell if it is heat/cold related, or capacitance build-up. It's definitely a problem, though. It sometimes happens several times over the course of a few minutes and other times there can be hours in between when I hear it. I feel like it hear it more regularly shortly after I plug it in to charge.

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Feb 26, 2017 12:42 PM in response to mac-dude In response to mac-dude

The same for me, on my 15 inches, 2,6 Ghz 1TB 460, TB MBPr

The pops occur when heating up, and cooling down. 2 to 3 pops each time


Another annoying thing : a CLAC ! located near the left side of the trackpad, when I open the lid.

What is strange is that the CLAC occurs the first time I open : If I immediately close, no CLAC when reopening...it occurs after 15 to 30 minutes closing time.


it looks like my MBPr will come back to Apple. it's a pity regarding that otherwise, it works absolutely fine.

Maybe I will wait for the end of warranty.


Did some one met this CLAC issue ?

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Feb 23, 2017 2:01 AM in response to Michael DN In response to Michael DN

Yep, I have this issue too. Initially I thought I was the only one with this problem when I received my rMBPtb in November 2016, I couldn't find anyone else in any online forums exhibiting the same behaviour. I have the 2.7Ghz i7 with Radeon Pro 460 and 512Gb SSD. Mine only exhibits the popping sound when it warms up under processor load, then I don't hear it again until it cools down. I concur, I think it's to do with expansion and contraction somewhere in the body of the casing. Battery model is the same as Michael DN. I'm in the UK. Apart from this occasional annoying pop the machine is absolutely superb, no other issues or sticky keyboard keys etc.

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Apr 19, 2017 1:02 PM in response to Michael DN In response to Michael DN

Update: Apple is definitely reading the post and researching the issue. Working with AppleCare and Engineering now! Hopefully we will all get a fix soon, hang tight! My popping sound is coming from the screen hinge area directly behind the MacBook Pro logo, especially when open 90 degrees and wider. I'm able to reproduce by reaching around and pressing, its the same sound I hear from thermal expansion since the fans exhaust there as well.

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Mar 25, 2017 3:30 AM in response to Michael DN In response to Michael DN

Macbook Pro 2016 15'. I'm experiencing this random popping sound too (the videos in this thread "show" the issue pretty well). I don't think it has anything to do with warm up. I already chatted with Apple Support and they only recommended software solutions. Didn't want to try those and checked if anything could make the popping noise on my Macbook.


I might have found the source:

The screen / screen hinge. If I press on the in the middle of the screens backplate near the screen hinge (close to or on the edge) I hear a very similar popping sound. Works in opened and closed position.


Please check if this could be the source on your Macbook too and reply to this comment.

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Apr 7, 2017 3:11 PM in response to krisztian_s In response to krisztian_s

Yes, his is exactly where the noise is coming from on my laptop. I am worried that this is a design flaw with the product. My computer is currently with apple and the screen and logic board are both getting replaced. If the flaw is inherit with all 15" MacBook pros I will find out soon. The noise is not just annoying it presents real issues with those doing live recording / podcasts / audio recording etc. the noise makes the computer feel cheap and badly manufactured. It would be one thing if this was a chrome book but the fact that this laptop is over 3k makes it completely unacceptable.

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Jan 12, 2017 11:14 AM in response to Michael DN In response to Michael DN

I'm hearing the exact same issue! I've scoured the internet and have found nothing about it. Your post is the first thing I've seen on this topic.


I have identical specs, albeit the 512GB storage on mine.


My single pop noise also sounds like it's coming from under the trackpad. Very weird.

Jan 12, 2017 11:14 AM

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Jan 13, 2017 10:37 AM in response to Michael DN In response to Michael DN

Hey I also have this issue... I am wondering if it is due to something inside heating up or shifting inside due to everything being packed so tightly. See this for example from a previous generation: http://6ixpassions.com/post/1095520847/fix-the-ticking-clicking-sound-in-your-ma cbook-pro.


I just wonder whether apple will fix this...

Jan 13, 2017 10:37 AM

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Jan 19, 2017 11:36 AM in response to Michael DN In response to Michael DN

same here, Macbook Pro 15 2016.

Seems to be hardware related since it often, maybe even always appears when the machine heats up or cools down.

Never or rarely hear the popping sound when Macbook is idle, except it was heated up before.


If it is hardware related it is definitely unacceptable for a 2,6K laptop, hopefully not even dangerous if it is a thermal expansion


I think the new Macbook Pro has some heating issues since i also have this problem

MacBook Pro (15" with Touch Bar) Keyboard Clicking/Sticking When Machine is Warm

Jan 19, 2017 11:36 AM

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Jan 21, 2017 4:47 PM in response to Michael DN In response to Michael DN

Same thing on my MBP 13 Touchbar 2.9 16 GB Ram 1 TB HD. What I am hearing sounds very similar to what you are describing. I feel like it only occurs maybe once an hour give or take (rare enough to where like you I didn't feel like it was a huge issue but still not something that I just want to completely ignore). I did notice on mine that it doesn't seem to be coming from the same place every time. I have noticed that sometimes it seems to come from the left side of the keyboard and other times the right side. If I had to guess I would say it has to do with the components expanding ever so slightly as the laptop gets warmer but that's just a guess. Kinda annoying either way.

Jan 21, 2017 4:47 PM

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Jan 24, 2017 3:29 PM in response to Michael DN In response to Michael DN

Same problem here. I went to the Apple Store to get support for this annoying problem. Even after the top case and the battery were replaced in my MBP 2016 the popping didn't stop. My notebook was then replaced by a new one and guess what....the popping sound is still there, although it doesn't occur that often.

Jan 24, 2017 3:29 PM

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Jan 27, 2017 8:18 PM in response to Michael DN In response to Michael DN

My guess would be one of the clips holding on the back metal cover isn't in all the way but not sure that's it. These new MBPs have like 4 metal clips in addition to the screws that hold the back on. Naybe they didn't install it well? Ive heard that sound because I had to check out mine but everything in there is really solid and shouldn't move. If you can't hear it happening right on the metal I'd take it in to the store. You can see them pretty well in this picture from Ifixit, right near his thumbs. https://d3nevzfk7ii3be.cloudfront.net/igi/vD5cOxfEQiVt54N2.huge

Jan 27, 2017 8:18 PM

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Feb 12, 2017 10:29 PM in response to Michael DN In response to Michael DN

I am having the same issue as well. Seems to occur when I open the lid after it has been closed for a while as well as when I am using the computer for a graphic intensive task. I have an appointment with Apple tomorrow. Just a thought, but I have been using a case with a magnetic closure, are any others also using a case with magnetic closures?

Feb 12, 2017 10:29 PM

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Feb 13, 2017 6:12 PM in response to RKnapp12 In response to RKnapp12

You know you could be on to something. Aluminum is paramagnetic but iron and nickel are ferromagnetic and can have spontaneous magnetic events. Wonder if this has anything to do with the large pieces of neodymium in the speakers. If you put a screw or something iron below the cosmetic speaker grill you'll see how strong they are..

Feb 13, 2017 6:12 PM

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Feb 17, 2017 2:46 PM in response to Michael DN In response to Michael DN

I found 2 videos with the popping sound on YouTube:

https://www.youtube.com/watch?v=umx5MVeeq_o

https://www.youtube.com/watch?v=oST0bDjSjDw


I hear it several times a day. I can't tell if it is heat/cold related, or capacitance build-up. It's definitely a problem, though. It sometimes happens several times over the course of a few minutes and other times there can be hours in between when I hear it. I feel like it hear it more regularly shortly after I plug it in to charge.

Feb 17, 2017 2:46 PM

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Question marked as Helpful

Feb 23, 2017 2:01 AM in response to Michael DN In response to Michael DN

Yep, I have this issue too. Initially I thought I was the only one with this problem when I received my rMBPtb in November 2016, I couldn't find anyone else in any online forums exhibiting the same behaviour. I have the 2.7Ghz i7 with Radeon Pro 460 and 512Gb SSD. Mine only exhibits the popping sound when it warms up under processor load, then I don't hear it again until it cools down. I concur, I think it's to do with expansion and contraction somewhere in the body of the casing. Battery model is the same as Michael DN. I'm in the UK. Apart from this occasional annoying pop the machine is absolutely superb, no other issues or sticky keyboard keys etc.

Feb 23, 2017 2:01 AM

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Question: Popping Sound, MBP 2016