9 Replies Latest reply: Jul 25, 2009 7:48 AM by irene-ga
pcollins666 Level 1 Level 1 (0 points)
I have noticed a fault with my iPhone 3G when I use Speakerphone.

As soon as I select Speakerphone mode I can hear the caller but the caller cannot hear me. They hear no sound, not even faintly. The microphone seems to mute. However, when I switch back and put the unit up to me ear, they can hear me and I can hear them.

When I got the iphone this function definitely worked. I now mostly use a Bluetooth headset so only recently (post software 2.2 upgrade) noticed the speakerphone defect.

It sounds like a software defect rather than a microphone fault to me. Have tried a Restore but this has not cured the problem. Has anybody had a similar problem?

I will call O2/Carphone Warehouse if nobody has encountered this issue, however, when I contacted them to question the lack of PUSH e-mail, before the last software upgrade, O2 tried to tell me that it was my e-mail provider that was at fault! However, immediately after the upgrade my PUSH e-mail returned!!!

Thanks for any help!

IPhone 3G 16Gb, Windows Vista
  • Raducu Level 1 Level 1 (0 points)
    Hi there.
    I'm having the same problem. When in speaker mode the microphone went dead.
    Now my device is sent to service and I'm waiting for response.
    How did you solved the problem ?
  • ezcome Level 1 Level 1 (0 points)
    Hi all,
    I have same problem.
    Call receiver can not hear me when I talk in speaker mode. But when I turn it off, everthing becomes good. I dont understand the problem, coz iphone using only one microphone and I can record my sound verywell, and also I can talk on the phone without error. When I turn on the speaker, everything upside down, but it still uses the same microphone. so, the problem shouldn't be the mic!!
    Is there anyone help us?!

    Thanks in advance,
    Alp.
  • dblue Level 1 Level 1 (5 points)
    For what it is worth, I am having the same problem. Tried the restart, then restore everything. No dice.
  • shadowbeast Level 2 Level 2 (210 points)
    Restore as new or from a backup?

    I would try another restore (make sure as new) and also try a replacement SIM card.
  • Paolo Murgia Level 1 Level 1 (5 points)
    I'm experiencing the same problem; I guess it's just a software issue which hopefully will be addressed by next OS updates.
  • Abus Level 1 Level 1 (0 points)
    Have been having same problems for past few days. Although I had updated to sw ver 2.2.1 sometime back, I first noticed the problem 3 days ago when I could not use the bluetooth function in my car. Other party could hear what I was saying but I could not hear.

    The speaker plays OK with iPOD. The headset works Ok to listen to. But no incoming voice on telephone calls.

    Not sure if this is a hardware or software bug.
  • J.E.Turner Level 1 Level 1 (0 points)
    A friend had the same issue in reverse... after replacing cracked glass and touch-screen digitizer, the microphone would only work with speakerphone enabled. During one of his repeated attempts to take it apart and troubleshoot it, another friend broke his Home button by man-handling it and damaging the little copper leaf contacts inside.

    He tried wiping the data, restoring the firmware (2.2 or 2.2.1 IIRC), etc but it did not appear to be a software issue. He could not do a restore-mode or DFU-mode FW restore because his Home button wasn't working, but that should not have been needed. Anyway, he's not stupid, so he was testing before and after loading his data backup and nothing he could do would fix it.

    Using a Bluetooth headset, he suffered with it for a month and a half until iPhone OS 3.0 came out, which MAGICALLY fixed it, meaning it somehow WAS a software issue after all and his phone was not getting fully restored. He is very angry that iTunes or whatever is at-fault would claim to be doing a real restore and was not.

    That said, my phone still reboots when deleting pics from Windows XP even in iPhone OS 3.0, so it doesn't fix all my problems.
  • Volker Nawrath Level 1 Level 1 (5 points)
    I want to precise this issue, which is behaving slightly different on my iPhone 3GS 16GB.

    The microphone seems only to be muted in speakerphone mode, when the caller is talking. As soon he stops talking, he can hear, walk I'm saying.

    When searching for some information on this issue I found similar topics for other mobile phones too. May be it is a feature but no bug?
  • irene-ga Level 1 Level 1 (0 points)
    Hi. Can you answer my question please?