*Important--iPhone4s Static/Crackling Noise

Did a full on restore (the noise became intolerable), with option to start using as a new iphone and the problem vanished.

Have both Siri and lift to talk to siri on, and those do not bring back the noise in calls.

(BTW, had the noise even with speaker on).

You had my hopes up. Did a full restore tonight, set up as new phone, and it's making the static noise just as bad as ever starting on the first call. Bummer! I'm now restoring from the backup that I created before restoring my phone, since there's no point in spending any more time than necessary. Waste of time, unfortunately.

Day 2 after restore and no cracking sound during calls.

Actually i did a new restore immediately after posting, and used restore from backup option.

Only difference i can think of the installations is that the crackling version of 5.1 software was installed OTA and no noise version was installed via laptop.

Good thing is that it seems it can be a software issue (was almost sure it was a hardware problem).

Bummer if you got your hopes up and it did not work for you, but i really did work in my case.

me too, I am having the same problem!!! STATIC STATIC

I did a full RESTORE AND received a NEW iphone 4s! The problem is still there! I am so frustrated!

so I was thinking, I don't hear the crackling all the time. I notice it most when I'm at my computer and around my house and I'm wondering if it could be from the WiFi/Wireless connection?

I'm not sure. Some here have said that they do not hear it when on WiFi and that it is coming from the 3G network. With mine, I hear it at random, whether I'm on WiFi, or not. I am on ATT in U.S., so I don't have the option to turn 3G off. If I turn wireless data off and on WiFi, I still hear the static at random. So, on mine, it doesn't matter what I do. I might get the static, or I might not. Just a matter of luck. But, as I stated in a previous thread and a few others have confirmed; one thing that always works is to use the phone on the left side of my face and the static is mysteriously gone. Switch back to the right and there's the static again. Who knows???

I had this problem for quite some time. The solution for me was buying an unlocked phone directly from Apple after accidently putting my phone through the rinse cycle. I had oringally bought my phone on contract from a carrier in south korea. I came to the US recently and I heard the same crackling noise even while using an AT&T sim. After the washing machine inccident, and having to shell out for a new phone, I've experinced nothing but crystal clear calling. I have an insurance policy on my original phone, so in the end I will just end up paying the deductible. But this does bring me to believe that the issue could be related to the carrier lock and why Apple didn't discover this issue during testing. Also, most review sites get unlocked phones, that's why most of the major sites haven't reported about this issue, like with antenna gate.

I have found a fix but need to have a Jailbroken 4s (JB), once JB simply turn siri off and take you sim out and repring iPhone, then put the sim card back and turn siri on again and it fixs the static sound, and the other way is without JB your iPhone is take the sim out turn off siri and reboot you device, this could fix it, i have not try this my self.

Can please tell, me know if resolve this issue with you

Oh my gosh... How many new problems will I find with my iPhone. I tried what you said and sure enough I hear the noise when loading on 3G......

I have tried the remove SIM, turn off SIRI, and reboot on my non jailbroken iPhone 4S 16GB. Did not change anything.

I am having the same problem with iPhone 4S when using 3G network. If disable it, the problem does not occur.

I have tested in other iPhones, Apple sent me a new iPhone, but the problem persists.

Note that iPhone 4 does not have the problem, just in 4S version.

I hope Apple recall these iPhones.

Same Problem in Costa Rica with my 3erd iphone, but I feel that is totally linked with de data and 3G service, because fades away with wifi

New Update, change my sims whith other Carrier (From Kolbi to Movistar) and i feel that the problem is almost gone , now is pretty hard to hear the sound. When I put back my old SIM imediate appears again! I am testing now but it feels better lets hope that works!

Is there a difference in signal strength between the two carriers? I only have the issue when the 3G signal is weak. When I disable 3G, the issue is not present at all. When I use earphones, the issue is not present at all (even with 3G enabled)

To me, it seems that the 3G communication unit interpheres with the earspeaker, when 3G connectivity is low.

That would make it a design error 😟

I love all my other Apple products (iPod, MBP, iPad), but the iPhone has let me down twice (3GS and 4S).

Both phones have had too many technical issues (low signal strength, battery issues, broken earspeaker, cracked screen (which was my own fault, but nevertheless, not treated differently then my previously owned phones)). The warrenty in my country ***** (2 weeks without phone, no replacement), expecially as you consider that I paid 879€ for the 4S-64GB).