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GoldRocket Level 1 Level 1



There seems to be an increasing number of complaints coming in of iPhone 4s static/crackling noise coming from the phone when placing calls.  I personally had the same problem on an iPhone received 10/14.  Replacement devices seem to be having similar problems.  Here are the following symptoms:


-Very intrusive and abnormal crackling/static noise can be heard through the ear piece while on a call. More obvious in a quiet room.

-When call ends, the sound can STILL be heard coming from the back of the phone. Which means the source of the noise may be coming from there?

-Atleast one person noted that the noise can be stopped by shorting out the signal by placing hand over two top antenna bands forcing a "switch".

-Replacement devices are having same symptoms.


Is anyone NOT having the the symptoms described on the new iPhone4S?

iPhone 4, iOS 5
  • goneinten Level 1 Level 1

    I'm having the same exact issue, both with my original and my replacement, apple store claimed its a device wide issue because the phone may be picking up too much background noise, I think he just didn't want to give me a third replacement. iPhone 4s white 64gb, AT&T ..

  • NapoleonSolo Level 1 Level 1

    Don't think a third replacement will change anything ... All 4S seem to have this issue and people begin to hear this static noise. They really have to fix it quickly !

  • GoldRocket Level 1 Level 1

    Can anyone confirm if they have a phone that does not have these symptoms?

  • tonefox Level 6 Level 6

    The problem you have is that people who do not have the problem do not come to a technical support board for people with problems.......


    As four million of these phones were sold in the first weekend, and I do not see a representative proportion of them complaining of the problem here, my guess is that the problem is not universal. But I do not deny that you have the problem, of course. My guess is that several million phones cannot be made without some displaying faults. I would hang in there with Apple until you get a good one.

  • Ted Todorov Level 1 Level 1

    I have the same problem. Also, both people I called told me I sounded strange.  I just got the iPhone last night, FWIW 64GB white.


    Can someone with the problem try simply recording a Voice Memo and then playing it back?


    And, PS, nothing to do with background noise, I was in absolutely quiet room.

  • Matthijst Level 1 Level 1

    Have the same issue as well.

  • M.A Level 2 Level 2

    Same issue here on what I thought was my first flawless iPhone. I was in my home office on an interview call and started hearing the noise. When I was done I googled the issue and ended up here.


    This is a terrible sound in the earpiece while in a conversation.


    I've had my 4S since launch day here in the US and I am positive this issue just began today for me. This phone is otherwise perfect and there was ZERO static background noise until today. What in the **** changed??

  • J32US Level 1 Level 1

    Me and my girlfriend both got 4S's at the same time. Hers is on a Canadian carrier called Bell, mine is with Telus. Her phone does not have any of the crackling noise. My phone, whenever I made a call, would create a horrendus crackling through the earpiece before connecting the call. Sometimes, the caller would not be able to hear me. I also experienced the same crackling as everyone during a call, and even had to hang up a few times because it got so bad. I called my provider for an unrelated issue, but was able to demonstrate the issue to the tech. She had never heard of this, but suggested it might be a SIM Card or Hardware issue. I was inclined to agree. So after I got off the phone I proceeded to remove and replace my SIM. At first I turned my phone off, took it out, booted up the phone, and replaced it. The noise was now even louder than before. !@#$! So, I took it out again with the phone on, blew in the SIM slot, and ensured that the SIM stayed completely in the tray when inserting it. Voila, no more static. I suggest everyone give this a try before blowing up Apple. It could be you're SIM's were hastily inserted and causing some kind of short out interference. Hope this helps someone else!


    TLDR: Take out your SIM Card with the phone on, blow in the SIM slot, and ensure that the SIM stays completely in place and in the tray when inserting it. I suggest everyone give this a try before blowing up Apple. It could be you're SIM's were hastily inserted and causing some kind of short out interference. Hope this helps someone else!

  • johnnyoffline Level 1 Level 1

    The sound seems to stop for me when I disable Siri. Can anyone else try this to confirm?

  • Matthijst Level 1 Level 1

    Nope, turning off Siri didnt change it for me.

  • Mark-UK Level 1 Level 1

    Having the same problems here (England) on Vodafone UK network, using 4S 16GB Black. Tried disabiling Siri and re-seating SIM - no change. Symptom's don't sound quite as severe as some describe, but bad enough that I want to avoid making calls from phone. I'm experiencing reverberation with light static crackle when sound comes through and light static crackle when line is on a call but silent, like on hold with no music. Have contacted Vodafone and replacement is due tmrw so will see how it goes.

  • M.A Level 2 Level 2


    I have the same exact model as you on AT&T network in the US. I feel the same way, I don't even want to make or answer a call now...

    Sadly, I don't think a replacement is going to help, it seems like all are affected.

  • M.A Level 2 Level 2

    I just spoke to Apple support. Here is how it went.


    I was told to do a full restore as new and that if the problem still exsists that would confirm it is a hardware issue and not software related. If it is hardware related I was told I would send the phone in for a replacement with a brand new (NOT a service or refurbished phone).


    The big concern is that I already see sveral here that have received replacements that still exhibit the static issue.

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