Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Static in Iphone 4s

I have noticed a static sound while I am on my new iphone 4s 😟 Is anyone else having problems or know any solutions?


Thanks

iPhone 4, iOS 5

Posted on Oct 15, 2011 12:37 PM

Reply
945 replies

Oct 21, 2011 5:43 AM in response to lukas501

Anyone try simply using the Voce Memos app to test with it? Also, if you have old memos transfered when you upgraded from an old phone it would help to compare them to newly recorded ones, to see if it is a mic or speaker problem -- although something must be wrong with the mic -- both people I called (full signal, from home) told me I "sounded strange".


Hearing static and echo at my end.

Oct 21, 2011 11:42 PM in response to Cdellamura

This is most likely the adaptive antenna system and it's proximity to the speaker of the handset picking up some frequencies. Try moving an edge based phone (some blackberries for example or the original iPhone) next to an unshielded speaker and you find interference during data transmission. The iPhone's speaker is way smaller and certainly shielded so this is just random speculation.


However a good way to confirm this is simply place your finger across the top of the phone, this will short the top antenna and have it adapt elsewhere. I don't have a 4S, but if this does indeed stop the hiss you are hearing, then you can rest assure this is an easy fix for Apple with minor firmware update. In short, the frequency which is casuing the minor disturbance, be it 3G, Edge, CDMA, Wifi, Bluetooh, will be adjusted so it always traverses through another route and will be made off limits to the top antenna. It's probably just one frequency which may be causing this so this should have zero impact once it's adjusted.


Apple is listening and observing all forums and as was the case with the proximity, 3G bars, etc. from previous phone release, this will be addressed as part of the first update. I wouldn't worry too much and enjoy the phone -- it's a master piece of software/hardware. You are carrying the most sophisticated 8MP camera and 1080P video on a phone among all theo ther cool features.


Enjoiy

Oct 22, 2011 8:41 AM in response to chlywly

I don't think they test things like this, I could be wrong, but if they tested for this there is NO WAY with Apple's technology in Cupertino that they could have missed this.


My problem is that on November 14 my 30 days is up and after that I'll be given a refurbished/service phone and not a brand new in a sealed white retail box phone like I agreed to when I bought on launch day.


However, that being said it looks like those that have just had their 4S replaced with another 4S are still experiencing the issue.


We are in a bit of a quandry here....

Oct 22, 2011 10:24 AM in response to BSUBCSBUSTIN

I don't have a 4S yet but I'm glad my hypothesis has been verified. I don't know the details of the phone but given it has a dynamic antenna it's a matter of rerouting the interfering frequency to a different antenna. If you want to do another test, I'm just curious. Try disabling 3G and work off edge. I read this is not possible with ios5, but I see the option on my iPhone 4. If the hiss doesn't occur the. It's the 3G frequency.


I the 3G off option is not available on iPhone 4S then perhaps this is intentional as the edge frequency is known to interfere with speakers and hearing aids and may bE exacerbated with the improved antenna reception of iPhone 4S

Oct 22, 2011 10:45 AM in response to Mike95

Here are the symptoms I see:


-On the 4S when placing a call you hear the abnormal static 'hissing' noise. It's very annoyng when on a call and in a conversation.

-I END THE CALL

- But then I still hear the noise, even with the call ended. Curiously, I put my ear to the back of the phone and its obvious the noise is coming from there also. Which made me think is that the source of the noise?

Static in Iphone 4s

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.