Outgoing sound (internal and optional mic) drops out on iPhone 4
This one is probably for an iPhone 4 expert.
Outgoing sound (my voice), suddenly and unprovoked, drops out during calls. There is a small static sound, and sound is gone. The person in the other end goes "Hello, hello.." and then hangs up.
This will happen no matter what mic is used. I tried all 4 sources:
Main mic (bottom right)
Speakerphone mic (located in headset jack) Bluetooth
And of course, an ordinary minijack headset
Solutions already tried:
1. If I bump the bottom of the phone on a table, or another hard surface, sound will be back for a while, but usually not for long.
2. I have tried to change the docking module, with the standard mic attached to it = NO LASTING CHANGE!
3. I have tried to take the phone apart and assemble again = NO LASTING CHANGE
Both solutions seemed to work for 30 min or so. Then, sound gone again!
I have tried to "irritate" the jack plug, to see if it was stuck somehow, but it didnt seem to change anything.
I have checked all ribbon cable connectors with a microscope, and they seem fine. I could understand, if it was in the big dock-connector at the SIM tray that was causing this, but the coming and going of sound, with bumping the phone don't lead my suspicion to a bad connection in that sort of plug. Especially not since I changed the whole dock module, and thereby also the plug.
It records LONG memos without any problem, so the problem has to be in the "transmission/s
Unfortunately, I bought this phone 2'nd hand, and didn't get a reciept so warranty exchange is not an option. Futhermore, I had in laying on my shelf for a month before I got around to use it, so it's useless to complaint to the previous owner (who, I am pretty sure, knew about this problem, based on the fact that the problem is constant and persistant).
I REALLY hope some iPhone expert can help, as this seems to be a problem that seems hard to solve.
Thanks in advance!
me pasa que la funcionalidad del audio en todas las aplicaciones es correcto pero en las llamadas se cae la linea de mi micrófono ya que quedo escuchando del otro lado pero no me escuchan....
en ocasiones en medio del problema bajo y subo el control del volumen y en algunos casos me ha servido por un momento..... busco una solución real ya que vivo en Colombia y no encuentro respuestas.
gracias por su ayuda...
Above is all hold supported and true, your iphone is facing terminal failure due to bad audio ic.
My recommended way is to remove the back cover, heat up the audio IC area while in a speakerphone call untill you hear sound. For 10 seconds of sound, quickly blow the area with canned air and cool it down. Voila you have it worked better for longer until it recurs again. You can do that for a few times until total failure.
Thanks and good luck.
If the microphone doesn't work in GSM calls but works in SKYPE or other applications, it is 100% the audio compiler that needs to be reballed. Reballing the audio compiler should only be done by a professional with a lot of experience. In the same area as the audio compiler is the touch ic, wifi module and the cpu is on the back side. If you use too much heat, you can damage one or all of those components. If you live in Europe, we have a 100% success rate with reballing or sometimes replacing the audio compiler. If you live anywhere in Europe, you can send your iPhone to iRepair Greece and we will repair it for you and guarantee the repair for 1 year. You can check our website for current prices.