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iPhone 4 mic not working during call
Hi,
probably this question has been asked many times
here is my problem
i have an iphone 4, during incoming or outgoing call, i can hear other people, but other people can't hear me, i've tried speaker mode,same thing. have not try headphone with mic yet.
i tried to go to camera, and record a short clip, i can hear my own voice though, so it is only happening during calls.
here is what I've tested so far
i have another perfectly working iphone 4, so i began to swapping parts.
first, i swapped the motherboard only, and it seems like it is not the motherboard. because the mic problem iphone motherboard transfer to a good phone, and i can hear people and other can hear me.
and the good iphone motherboard on the bad mic iphone housing still have the mic problem.
my guess i narrowed it down to the housing.
so continued swapping the bottom speaker, bottom mic and charging port, it seems like these parts from bad iphone housing to a good iphone are working.
so it doesn't seem like problem on lower mic and charging port, lower speaker/antenna
what else should i try?
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SIMRAN
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jamespribi
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Hello,
You have almost done everything possible, but try doing a restore in itunes, might be your only chance if you have tried everything else. Unless of course someone else thinks of another solution.
ok i finally got it working but did many things at once. i don't know which fixed the problem, restored 5.1.1 from itune and i went general, accessibility, hearing, and turn on hearing aid mode, also took out the motherboard, rubbed every part with 70% alcohol, and use hair dryer on high heat, remove the EMI shield, blow the audio compiler for a short time, put a small business card paper to pad on top of the audio compiler IC. and pad the sim card tray area on the back of the iphone. turn it on, and it works. i was afraid to undo and break it, so i am leaving it as it is in working condition. i am not sure if i've misdiagnosed the problem, but it seem like the problem might be on the motherboard, not housing. because i have too many parts laying around at the time.
Well thats good to know it's back up and running. It's best to use 100% (or close to) alcohol in stead as the rest or in your case the 30% mainly contains ingredients that can harm the board. I now always do a restore in itunes has this can fix many problems from quick battery drain to extreme slow loading and speeds.
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ranjith
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Your phone is faulty, it has a manufacturing defect that was there when you purchased the Phone. This is a hardware fault and will only get worse over time.
Request a Refund or replacement ASAP even if the phone is out of warranty. As the You Tube video Suggests a defective soldering joint comes loose over time, sometimes within warranty sometimes not.
Apple should offer immediate replacements for all users affected by this issue where the phone has been looked after as per manufacturers recommendations and not neglected by the end user.
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Beria
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cesar
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hi, had same problem with my iPhone 4 that i bought from eBay.
tried everything that did not involve opening the phone but nothing worked, just could not understand it... So after reading what jamespribil said i gave it a shot with isopropyl alcohol, gave it a nice bath for about 2 hours and cleaned it from time to time with a touth brush, to my amazement it worked... crazy but it did.
When i opened the cover on the logicboard, one thing i noticed was that there was only plastic protectors under one cover and not 2 like its suppose to be, do not know if that was what caused the problem but just glad i came here, as i was not going to do that...
Just wanted to share that it worked for me, but do not open logicboards if you do ot know what you are doing, thanks...
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Tom
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This is down to the Audio compiler it will need reball or replaced you can get this repaired here
Edited by: oldturkey03 ( )
tried replacing the dock connector?
oldturkey03,