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iPhone Hardware and Accessories Discuss iPhone hardware

Iphone 4 - People can't hear me but I can hear them

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Member Since: Jul 30, 2009
Posts: 45
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So I haven't had much luck with my iPhone 4. The first one I had, the power button (top right button) didn't work so I got that replaced. My second iPhone had an issue where if I called someone, they would be able to hear me but I wouldn't be able to hear them. This happened roughly 50% of the time. Now I'm on my third iPhone, and it has the exact same problem as my second, where people can't hear me but I can hear them. So far, it's happened about 20% of the time.

I've done the usual restore and all. I have no case or plastic on it and the phone is not on mute. Has anyone else experienced this issue? Any fixes? I'm not exactly sure what it could be (either software or hardware). I found a form on the apple site with many other users experiencing the same thing.

Apple - Support - Discussions - Iphone 4 people cant hear me during ...

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Member Since: Sep 30, 2007
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My wife experienced this recently after months of never having any such issue. It finally resolved when she plugged in her headset, then unplugged it. My best guess is that her iPhone "thought" the headset was plugged in and thus routing audio to the audio-out jack rather than the speaker. Perhaps it was simply some dirt on a contact that got brushed off when the headset was jacked in, or some weird electrical quirk. At any rate, try plugging in a headset, then unplugging it.
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Member Since: Feb 21, 2011
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I had a similar issue with my old iPhone 3G. It turned out to be a hardware issue and the phone was already out of warranty so I paid one of those 3rd party smartphone repair places to fix it. Worked like a charm after that.
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This has ben a common problem for most iPhones versions, seems to be a software glitch, as stated by lifesabeach, the solution for most is to plug and unplug earphone or headset into the jack a few times, seems to kick it back onto the right track.

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Member Since: Feb 20, 2012
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iPhone 4 1.5 years old.
I honestly believe Apple is lacking in customer service intentionally, knows the answer to this issue, and chooses to ignore it as there solution so far is a win/win situation for them.* By not correcting what seems to be a simple problem, they admit no error in phone design.* The fix offered is replacement either under warranty or not.* The win/win?* Apple avoids losing a client to competitors such as android based phones, keeps the client for the remainder of the contract due to costs involved with breaking the contract, or gains a new 2 year commitment via the service provider contract.
I have the sporadic problem where people can't hear me.* They always say "static" is heard before my voice goes silent or I can't be heard at all after receiving or making a call.* After trying all the fixes such as the paper spacer, starting /stopping iTunes/restarting phone, factory resetting phone, pressure on the back of phone, making sure all screws are tight, the one that usually succeeded in curing my silence during a call was pressure to the back cover?
Mine is not a software problem as physical solutions correct the issue.
After testing the many options above, I noticed a "lever" to the lower left of the battery which is a part of the hold down for the battery connector.* This lever also aligns with a "metallic" 1/4" by 3/8" rectangle on the inside of the back cover.* I assume this is a back screen anti scratch patch, ground, or tension/distance/pressure/spacer lever?* The lever actually sits higher than the remaing profile of the insides of the iphone and is compressed when the back cover is attached.* I have no clue why the lever is there but think it is part of the problem?* If anyone knows, please comment.
Anyway, I found that while making a call with the back cover off the phone, all could hear me regardless of making or receiving a call.* To be specific, no outer shell contact with the inner hardware.* After thinking through, the paper spacer makes sense as it releases pressure or completely removes contact of the lever from the backing.* My reasoning for suspecting the lever is a tension/distance/pressure/spacer sensor is due to my voice being heard after pressure being applied to the back cover.* Some will say the I am simply "reconnecting broken solder connections.* I would agree except for the fact that the profile of the hardware is flat as is the back cover and technically, there should be no contact from hardware to cover* This would indicate the lever is there to keep the internal hardware from contacting the back cover of the iPhone.* So, my applying pressure to the back of the phone shouldnt factor into solder reconnections as there should be no contact and the functional operational oif voice calls with the removal of the back cover eliminates the solder connections reconnected idea.
Further, it would seem since callers and called can hear me once the back cover is removed, the problem is related to "distance" or "contact".* I believe the rear phone cover is contacting internal hardware or the battery lever in a way that causes a "bridge" connection that shorts out the "phone" part of the microphone only.* Proof of this is the continued operation of the microphone with software such as "recorder" or "dragon dictation" when people cannot hear me talking during phone calls. Further proof is the "static" heard by callers before my voice goes blank indicating interference of either a physical or electrical source.
Possible causes are:
Aged battery.* Lithium batteries are notorious for "bubbling" after repeated charges.* This would cause contact since the battery is trying to occupy a larger space as it has "grown".
Dropping the phone has "bent" or moved internal parts causing internal contacts.
Antenna shorts?* Do the 2 antennas also have separate send/receive designations which would indicate one of the antennas working and the other not due to internal contact?* This would support being able to hear callers but not be heard.
Please let me know your results.
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Member Since: Mar 08, 2012
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5.1 fixes issue of your voice silenced to callers. Issue was software. New phone not needed for me.
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Member Since: May 27, 2012
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I'm having the same problem. Have updated, cleaned, restored to factory settings, and put the headphones in & out a few times. No luck yet.
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Member Since: Oct 10, 2009
Location: PA
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I tried resetting my software also with no luck, I ended up having to mail it away to get repaired. The jack replacement wasn't that expensive though... Home || Mobo Repair - Phones - Tablets - Laptops - Game Consoles
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