Previous 1 2 Next 20 Replies Latest reply: Jun 15, 2012 11:07 AM by mpdavismd
EricDeichl Level 1 Level 1 (0 points)
Can hear callers, callers can't hear me.

Backup synced and restored as Genious Bar requested, but problem still exists.

Anyone else have an idea or a fix before I return it?

IPhone4, iOS 4
  • NikkiCrick Level 1 Level 1 (0 points)
    This might be a basic (stupid) question, but when you turn volume up does it show ringer or headphones?
    My iPhone was stopped ringing last week and was convinced it still had headphones plugged in.
    I re-plugged them in and out and cleaned headphone jack socket.
    Might not be the case with yours, but worth checking.
  • tonefox Level 6 Level 6 (8,830 points)
    A silly thought - you're not holding it in a way that the microphone is covered by a finger or something?
  • HiBridLP Level 1 Level 1 (0 points)
    I have the same issue that you do. I was in the middle of a call when the person at the other end all of a sudden could not hear me. I attempted multiple calls after with no success. I have tried using it normally, using the speaker phone mode and also with my Bluetooth headset. None will work.

    It almost seems like it is stuck in mute, but I have tried switching on and off mute with no success as well.
  • CLegs Level 1 Level 1 (0 points)
    I have read many different troubleshooting efforts throughout multiple threads regarding this issue. Unfortunately I too have had major problems with what I will call either a mic issue or a one-way talk path issue. The issue occurs whether I am placing or receiving calls....I can hear the other party great and they hear either noise or nothing at all from me. I am using an IPhone4 that is only a week old and running the latest OS Version 4.0.2 (8A00). To rule out other potential cause and effect items that others have raised throughout discussions elsewhere: this is not a signal issue, not a mute issue, and not as a result of the holding of the device. Through my troubleshooting efforts, I have determined fairly conclusively that the problem is related to either media applications or other audio/mic devices. The problem occurs for me most often after using the iPhone to play music (Pandora, other) and/or when using a headphone device. There is a solution that clears up the problem – *HARD REBOOT.* Shutting down the device and powering it back up does not do the trick. I can’t tell you how frustrated I am by this….my 3GS was working great!
  • vpatel787 Level 1 Level 1 (0 points)
    I had the same issue. When I was on the EDGE network, the other person could barely hear me, however when I was on 3G network, they could hear me just fine. I called AT&T and asked for someone on the technical support group and explained my issue. They asked me to call from a different phone (landline) so that they could collect some information from my phone. (Also make sure you have the latest firmware on your phone.) They then said they would address the issue and call me back in 3-4 hours. I never got a call back from AT&T, however my issue was fixed and my edge calls are flawless and can be heard by the other party on the call. Therefore if you have issues with one of the networks and not the other I would suggest you contact your service provider, if it is both networks, then you should have your phone replaced since you have a warranty and you should make use of it.

    Hope it helps, goodluck !

    vp
  • HiBridLP Level 1 Level 1 (0 points)
    I attempted to reboot the iPhone, update to 4.02 and also do a restore with no luck. I eventually made an appointment with my local Apple Store where I was promptly given a new iPhone 4. As of now the issue is resolved, they wouldn't say what was causing it, but they are sending it back to Apple for a closer look. My guess is a hardware issue with that phone.
  • barshnik Level 1 Level 1 (85 points)
    This happened to me nearly every call PB (pre-bumper). I was holding the phone left handed with the antenna gap in the heel of my hand. Touching the gap caused enough de-tuning of the antenna so that reception was OK but transmission was gone.

    Are you using a bumper? Any chance you have low-moderate signal (1-4 bars) and are touching the gap during the call when this happens? It sure was what was happening to me until I quit 'holding it wrong' and got the bumper. Post-bumper, not a single occurrence of this.

    Here is my take on the iPhone4 antenna issue (I know, talked to death). There are 2 issues:

    1) Attenuation. Putting enough meat (flesh) around the antenna causes the signal to be attenuated (reduced) by one or more bars. All phones are subject to this to some extent as Apple pointed out.

    2) Detuning. Touch the external antenna lower left hand gap, and the antenna is detuned, causing nearly instant transmit signal drop/loss. This is mostly a transmission problem (sending) and not a reception problem, which is why you can hear the caller but they can't hear you. If detuned enough with initial low-moderate signal strength, the call will eventually drop after the party can no longer hear you.

    Apple never has been up-front about #2, the whole detuning issue. That is, of course, why they gave everyone a free bumper, but they never were clear about the fact that crappy hardware design caused #2, they just blamed #1.

    John F
  • joeaus79 Level 1 Level 1 (0 points)
    iPhone 4 less than a week old. Updated to 4.0.2 three days ago. Same problem now, i can hear callers, but they can't hear me. HOWEVER, if i call or receive when the iPhone is plugged in via USB, the problems goes away. It's as if the iPhone needs power connected to it to work properly.

    To the Apple Store tomorrow!
  • brreadd Level 1 Level 1 (0 points)
    I am also having this problem, I've had this phone for 3 weeks and it just suddenly happened, I hope Apple resolves this problem soon, it may just be that At&t's service is really bad.

    EDIT: it actually works sometimes, so it's an On and Off situation, it's like playing with a dam slot machine. Fustrating

    Message was edited by: brreadd
  • VitaliyMezhevich Level 1 Level 1 (0 points)
    This occurs when Iphone switching from 3G network to network EDGE. In turn, this shift is due to the fall of the signal because of the dead hold. To fix, simply turn off 3g. I hope the Apple will solve this problem differently.
  • Duke 2 Level 1 Level 1 (10 points)
    Any luck as of yet?

    OK, I have the exact same problem. I have a friend with the exact same 4G and ear buds. After struggling with the same issues for a month (they worked fine initially) "could hear callers but they couldn't hear me unless I unplugged the ear buds and used the phone conventionally, I tried his ear buds and "Viola"! Worked fine. Am on the way to the Apple store tomorrow to replace buds.
  • mikerudolph22 Level 1 Level 1 (10 points)
    Hey my friend had this problem and I had an idea. Try plugging headphones into the port and then pull them out. It might be stuck in headphone mode...which the iPhone doesn't display. That fixed her problem!!!

    Message was edited by: mikerudolph22
  • jackieg1011 Level 1 Level 1 (5 points)
    Hi I also have this problem since updating to 4.2! It will only work on speakerphone or with earphones in, it also wks if plugged in 2 the USB port. My phone is 10 days old from new and Apple said I could return it. I don't know whether to do this or keep it hoping for it to be sorted out, hope yours sorts itself out soon!
  • InnuendoPanda Level 1 Level 1 (10 points)
    I've been having the same issue. I called apple about it and their solution was to take it in and have my phone replaced. I disagree - it makes no sense that this would be a hardware issue since my phone worked perfectly fine for months until this update. Also my microphone still works fine for all of my apps - it only doesn't work with calling.
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