Buzzing / static sound coming from back of new iPhone 7 Plus

Discussion in 'iPhone' started by maxlind, Sep 16, 2016.

  1. CSpackler macrumors regular

    CSpackler

    Joined:
    Jun 22, 2010
    Location:
    On a plane
    #76
    The sound reminds me of a phenomenon called "coil whine" present in some graphics cards. Technically, what happens is that a (relatively) high electrical current runs through the inductors, causing them to vibrate. Hence the high-pitched buzz or whine.

    If this is related, then it's a hardware issue that won't go away with time. I have two identical AMD graphics cards in my computer—one whines more than the other while under load. You need to be down next to it with the case open in order to hear it, but it's definitely there and would drive me bonkers if I had to listen to it all the time.
     
  2. AmelieCofas Suspended

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    Sep 17, 2016
  3. indiekiduk macrumors 6502

    Joined:
    Jul 26, 2005
    Location:
    Glasgow, Scotland
    #78
    Do the people with the problem have the Intel or Qualcomm modem?
     
  4. xeio macrumors regular

    xeio

    Joined:
    Sep 16, 2016
    #79
    I have the normal iphone 7 and have the same problem. Its very very very quiet when running a benchmark for example. But it doesnt bother me
     
  5. Sgall123 macrumors newbie

    Joined:
    Sep 16, 2016
    #80
    I updated & no differnce
     
  6. skwood macrumors 6502a

    skwood

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    Location:
    Tonbridge, UK
    #81
    I had never noticed processing noise from my 6s until this thread! Thanks guys...seriously though it seems to be standard. Might just be a bit louder on the 7 than the 6s or earlier so noticeable for first time.
     
  7. iphone1105 macrumors 68020

    iphone1105

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    Oct 8, 2009
    #82
    I heard similar on my 6+.
     
  8. renet macrumors newbie

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    Sep 16, 2016
    #83
    you're right!!
     
  9. skwood macrumors 6502a

    skwood

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    Jul 8, 2013
    Location:
    Tonbridge, UK
    #84
    Maybe people are just noticing this because they can't plug headphones in :D
     
  10. IconIc215 macrumors 6502

    Joined:
    Oct 11, 2013
    #85
    Well it seems now a lot of the tech media outlets are picking up on 9to5mac's story so hopefully we find out what is actually causing it. It would be nice if Apple either said Yes its normal or No its a defect before our return window expires. I would not count on it though. The only way I hear it on mine is if I put my ear up next to the back. It seems it is louder in these audio clips posted on Youtube than what I experienced. I suspect it has always been apparent on phones just to different degrees. I would guess if there was a thread for this back when the 6S+ was launched there would be reports here and there.
     
  11. DADDYDC650, Sep 17, 2016
    Last edited: Sep 17, 2016

    DADDYDC650 macrumors 6502

    DADDYDC650

    Joined:
    Sep 26, 2015
    #86
    Same on my lady's Rose Gold 32GB iPhone 7 Plus.

    Pretty sure every iPhone 7 has this noise and I wouldn't have ever noticed until OP pointed it out. It isn't a big deal. For those that claim theirs don't make noise, either they don't own an i7, are in a noisey environment, in denial or have hearing issues.
     
  12. newellj macrumors 604

    Joined:
    Oct 15, 2014
    Location:
    East of Eden
    #87
    Some ICs make noise. It probably was designed to operate silently. I'd return it.
     
  13. jimbo1mcm macrumors 68000

    Joined:
    Mar 21, 2010
    #88
    A10 noise. Apple solution: Don't hold it up to your ear and listen.
     
  14. indiekiduk macrumors 6502

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    Jul 26, 2005
    Location:
    Glasgow, Scotland
    #89
    yep my 6s has the noise too
     
  15. Hogg macrumors regular

    Hogg

    Joined:
    Sep 14, 2016
    #90
    Have we reached pause for concern time?

    People with the issue... what date was yours made on?
     
  16. Zulithe macrumors member

    Zulithe

    Joined:
    Jun 6, 2010
    Location:
    San Francisco, CA
    #91
    Just tested on my iPhone 7 Plus 256GB (black), can confirm the sound.
    As a test case, run something intensive. Like a browser benchmark:
    https://developers.google.com/octane/

    6S Plus: barely any noise
    7 Plus: noticeable noise (focused nearer to the top of the phone)
     
  17. yegon macrumors 68030

    Joined:
    Oct 20, 2007
    #92
    You're listening wrong.
     
  18. RickNY macrumors regular

    Joined:
    Oct 8, 2012
    #93
    While I didn't hold my regular 7 up to my ear, yesterday when I was restoring my apps, I noticed almost like a very high frequency vibration coming from the top back of the phone when I ran my fingers lightly across it. I haven't been able to get it to occur again -- but I haven't had the phone under a lot of load since then either.
     
  19. maverick808 macrumors 65816

    maverick808

    Joined:
    Jun 30, 2004
    Location:
    Scotland
    #94
    Just tried this. If I put my ear against the back of the phone while the CPU is under load (e.g., open a game) then I hear it too... on my 6S.
     
  20. Hogg macrumors regular

    Hogg

    Joined:
    Sep 14, 2016
    #95
    Yeah, this seems to be a little louder though. You don't need to put your ear up to it, to hear it.
     
  21. IconIc215 macrumors 6502

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    Oct 11, 2013
    #96
  22. mjjferreira macrumors member

    Joined:
    Sep 17, 2016
    #97
    Go check your old 3GS, i bet it hisses too.

    Jesus, this foruns are usefull for many things, but when many start searching for problems (where probably they don't exist) it's a really big mess.

    My guess is all of the iPhones 7 models do it, probably lounder on some. For now we can only speculate but i am sure that there's got to be a very good reason.

    I waiting for my ip7+ and i am start thinking on shutdown my internet! Lol
     
  23. aj8690 macrumors member

    aj8690

    Joined:
    Aug 28, 2012
    Location:
    Orlando, Florida, USA
    #99
    It's definitely not from the speaker. I can barely (if at all) hear it from the front. From the back it is many times louder. For me it's a buzz that alternates in frequency seemingly randomly (but gets louder with more CPU usage). For me, the sound is reminiscent of an old hard drive seeking, except higher pitch. There's a constant, quieter buzz that's always there and always has the same frequency (think like the hard disk spinning); then in addition, there's a 2nd buzz that is louder and higher pitch with alternating frequency (think like hard disk head seeking) depending on CPU demand. That's my observation.
     
  24. Sgall123 macrumors newbie

    Joined:
    Sep 16, 2016
    #100
    I agree it's only at the back I can't hear anything from the front... however I have noticed it's only when it's downloading stuff like music etc... other times it's barely noticeable
     

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