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

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

  1. aj8690 macrumors member

    aj8690

    Joined:
    Aug 28, 2012
    Location:
    Orlando, Florida, USA
    #101
    For a device that's meant to be held up to your EAR, this is a legitimate concern. I have had every iPhone except the 3G and I'm not one to seek out problems or even care about minor issues like screens being warmer or what have you. But the fact is that I noticed this sound on my own within hours of purchase, before even reading about it online. If it existed in previous models, it was many times quieter. This is a real issue and a legitimate one that affects one of the main features of a phone (you know...making phone calls).
     
  2. shahin90 macrumors regular

    Joined:
    Oct 23, 2012
    #102
    I am experiencing the same exact issue on my 7 plus model under heavy load.
     
  3. iphone1105 macrumors 68020

    iphone1105

    Joined:
    Oct 8, 2009
    #103
    have you made a call with your new 7 or 7+ and had it hinder your call? Because i have the noise as well, but have been on 3 calls and hasn't leaked over the line or even been heard. FWIW :) hope it works out for you! :)
     
  4. amps macrumors member

    Joined:
    Jul 2, 2009
    #104
    We might need a noise canceling case to mask this noise.
     
  5. aj8690 macrumors member

    aj8690

    Joined:
    Aug 28, 2012
    Location:
    Orlando, Florida, USA
    #105
    I do notice it get louder when downloading stuff too, but I also tested it in airplane mode and it's still there.
    I do notice it on HD Voice calls because of how clear they typically are. The call is not hindered but I can tell it's there. Not really noticible on regular calls.
     
  6. iphone1105 macrumors 68020

    iphone1105

    Joined:
    Oct 8, 2009
    #106
    Do you know if the person on the other end might have heard it? Thanks.
     
  7. Cscottrun macrumors 6502

    Joined:
    Oct 8, 2011
    #107
    Can someone who has the sound post the steps I can take to try and replicate it? All I've seen is that the noise may come upon a "Heavy load", but I'm not exactly sure what is considered a heavy load.
     
  8. aj8690 macrumors member

    aj8690

    Joined:
    Aug 28, 2012
    Location:
    Orlando, Florida, USA
    #108
    I was on a 46 minute HD Voice call earlier today, mixed between regular earpiece mode and speaker mode off an on. The person on the other end only heard static for just a moment during the whole call and the rest of the call was clear, so I think it was unrelated...it doesn't seem like the person on the other end can detect any of the hiss. I kept the call on speaker most of the time and that way I was unable to detect the hiss. Using the earpiece was still clear, but every time there was a pause in the conversation, I could make out a very slight hiss. It wasn't really bad (not worse than a regular phone call), but knowing how clear HD Voice calls are supposed to be, you could tell that something was going on. I made a couple of brief regular (non HD Voice) calls and couldn't notice anything wrong since regular calls have their own background noise/static on their own.
     
  9. IconIc215 macrumors 6502

    Joined:
    Oct 11, 2013
    #109
    I am starting to think its a defect and bothersome after paying as much as these phones are. I can live with the screen being moderately warmer than my 6S+ but this might be what pushes me to return. Whats worse is now that I know about it I always find myself listening in for the problem more often than not.....
     
  10. CSpackler macrumors regular

    CSpackler

    Joined:
    Jun 22, 2010
    Location:
    On a plane
    #110
    You know when you walk by an electrical substation and hear that loud buzzing? That's what's happening at a very tiny level with the new iPhones. All electronics with transformers and inductors do it to some degree. With a device as small as an iPhone though, you really shouldn't hear it. Seems it's happening when the CPU fires up on all cylinders. It's a quality control issue.
     
  11. Neebee, Sep 18, 2016
    Last edited: Sep 18, 2016

    Neebee macrumors 6502a

  12. michael31986 macrumors 68040

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    Jul 11, 2008
  13. mjjferreira macrumors member

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    Sep 17, 2016
    #113
    So you use the BACK of your phone in you ear (regardless the noise)? Ok.
     
  14. KimHansenDK macrumors 6502

    Joined:
    Jul 29, 2011
    #114
    I tried running the Google Octane benchmark that someone suggested and I cannot hear it on my iPhone 7 128GB. I held the back of the phone up to my ear I could not hear anything. Maybe I need to run something more demanding. Maybe I have bad ears.
     
  15. mjjferreira macrumors member

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    Sep 17, 2016
    #115
    People are not used to have screens calibrated to 6500k.
     
  16. Neebee macrumors 6502a

    #116
    There is talk about this on Reddit. There's also talk that Apple will address this issue by throttling the CPU which won't be a good thing, but nobody will probably notice except those who run benchmarks.
     
  17. mjjferreira macrumors member

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    Sep 17, 2016
    #117
    I don't believe apple will throttling the CPU. Nonsense!
     
  18. ventmore macrumors 6502a

    Joined:
    Jul 13, 2008
    #118
    If it makes anyone feel any better, I can hear something on my 6 plus if I press my ear to the back of it whilst running the octane benchmark.

    It's like a much quieter version of the "CPU whine" I hear on my rMBP when under load. A sort of screechy intermittent hiss. As I said...very quiet though.
     
  19. arncalars macrumors member

    arncalars

    Joined:
    Oct 2, 2013
    Location:
    Denmark
    #119
    I have similar sound from my 2 year old 6 plus and I didn't know before I read this thread and listened for it. I hear a weak clicking when pressing light on home button and judging from ifixit tear down, I think it's from the Wi-Fi antenna.
     
  20. SBruv macrumors 6502a

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    Sep 25, 2008
    #120
    By (the second instance of) 'talk', you mean total speculation, of course...
     
  21. pmau macrumors 68000

    Joined:
    Nov 9, 2010
    #121
    Right. Plus there's no True Tone backlight which puzzles me.
    This would have been a great selling point.
     
  22. Alexrat1996 macrumors 68040

    Alexrat1996

    Joined:
    Mar 29, 2015
    Location:
    Lehigh valley PA
    #122
    Mine won't vibrate when I plug it to charge but it vibrates to make calls and text is this normal
     
  23. netnative macrumors regular

    netnative

    Joined:
    Nov 21, 2013
    Location:
    Puerto Rico, USA
    #123
    According to 9to5Mac the problem is real. Add a hissing or buzzing noise to the list of potential issues to check during the return period. This is the first time I hear of such an issue with a smartphone. Some have claimed that all iPhones make some noise but I ran Geekbench 3 on my 6s Plus while holding the device to my ear and heard nothing.
     
  24. Cscottrun macrumors 6502

    Joined:
    Oct 8, 2011
    #124
    Just ran this on my 7+. No noise. Guess its an intermittent problem.
     
  25. newellj macrumors 604

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    Oct 15, 2014
    Location:
    East of Eden
    #125
    It's very possible that what we are seeing is due to yield rates on the chips. Those that are well into the "good" range don't hiss. Those that are "bad" get rejected. It's possible that chips close to the "fail" or "bad" cutoff need to be "fail" to allow Apple to ship phones with no hissing. That would, of course, slow down production rates and delivery dates, fwiw.
    --- Post Merged, Sep 18, 2016 ---
    OK, this is vaguely interesting. I have two iP7s here right now. I downloaded the Geekbench CPU benchmark append ran it on both. One has a very clear, loud hiss/click noise under load. The other is basically silent - I could occasionally hear faint clicking if I was in a VERY quiet room. I can't hear any noise from that phone in a normally noisy room.

    I do think it's normal manufacturing variations and chip yield rates that are the cause.
     

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