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  1. mrf00x's Avatar
    I updated my 930 over the weekend to AU version: 02540.00019.14484.37008.

    Everything worked perfectly fine and still does BUT when I went to make a phone call in my Mazda 3, the phone dials out but audio on stereo does no longer switch to headset mode.

    After 10 seconds the bluetooth button when making a call turns off. You can hear the phone ring as you wait for the other person to answer but at this stage bluetooth headset isn't taking over.

    When the other person answers your call and you press bluetooth on the phone it works and the headset takes over your stereo.

    Note this was no issue prior to the update. I have reset phone defaults and did same for car stereo including deleting any existing bluetooth pair.
    In my line of work this phone cannot be used as you need to make the call, hear it ring through the phone then wait for other person to answer before bluetooth headset can take over.
    Audio streaming has no issues neither does when someone calls me and I answer the phone from the steering wheel. It is only outgoing calls this happens.

    I am open for any suggestions, but note that I am in IT and have tried all the basics and started from scratch with no results.

    What would you guys suggest?
    02-09-2015 05:30 AM
  2. Roy Khoh's Avatar
    I've got the same firmware, and it is working fine with my Ford Fiesta.
    OS version: 8.10.14219.341
    Ford "my sync", however, is meant to be driven by Microsoft so that might have something to do with it.

    I suggest, you try your phone in another car to see if it reacts the same.
    What about another Bluetooth device? I don't think the phone will care if it's a car or not.

    And I'm assuming "reset phone defaults" is the hard reset? The Settings --> About --> reset your phone.
    I had problems with accelerometer after denim update, so hard reset and all was fine afterwards. Didn't get a chance to pair with my car before the hard reset.
    02-11-2015 03:45 AM
  3. Roy Khoh's Avatar
    And what about the "Use an alternative Bluetooth audio connection for Speech" option?
    It's in Settings --> Bluetooth
    02-11-2015 03:50 AM
  4. mikeyjames's Avatar
    If I am understanding you properly, a similar thing has been happening to me since Cyan in my Ford Falcon (FG Mk2). But only happens to me with voice dialling. Since Denim, I go "Hey Cortana", then "Call my wife", Cortana goes "certainly calling your wife", then I only hear silence through the car audio. If I transfer the call back to the handset I can hear okay, but transfer back to the car audio then silence again. If I hang up and use the steering wheel button to call the last dialled number it then works fine. Silence after voice dial over bluetooth in car - Microsoft Community

    Streaming music has also been a nightmare since Denim - constant stuttering.

    02-13-2015 09:02 PM
  5. Roy Khoh's Avatar
    1. Used Ford Fiesta to "call voicemail" - entirely through Bluetooth car speakers
    2. Used "Hey Cortana" - could not hear the "bleep" when Cortana activates, can see activation through car monitor/display, then "call voicemail" and the rest was via Bluetooth car speakers.
    3. Handled the phone to dial voicemail - entirely through Bluetooth car speakers.
    4. Used car to "call Cortana" - Bluetooth car speakers activated and car display indicating connection to Cortana then "call voicemail", entirely through Bluetooth car speakers.

    Considering it was working before denim update, viable conclusion is software.

    Not sure what the Bluetooth info would be part of:
    OS version: 8.10.14219.341
    Firmware revision number: 02540.00019.14484.37008
    Hardware revision number:
    Radio software version: 201c110.00039.0001

    And what about that "alternative Bluetooth" setting?

    You don't happen to have another set of Bluetooth device active in the car do you?
    Your initial post mentions "Bluetooth headset" and I haven't heard anyone reference the car's speakers as "headset" before.

    Otherwise, you might be a victim of "bad update" that most of us here have suffered.
    Usual steps are:
    1. Reboot/Restart the phone
    2. Soft reset
    3. Hard reset
    4. (Re) Flash

    I was lucky with only needing to resort to Hard Reset.
    Last edited by Roy Khoh; 02-15-2015 at 02:17 AM.
    02-14-2015 05:47 AM
  6. mrf00x's Avatar

    This is confirmed to be an issue on 930. Microsoft has contacted me and they agree there is an issue. They are investigating and have been contacting me daily with an update.
    Last edited by mrf00x; 02-24-2015 at 01:36 AM. Reason: mistake
    02-24-2015 01:36 AM
  7. Grega Stamac's Avatar
    I have the same problem with Lumia 1020 and Mazda CX7. And it only started after Denim update.
    02-26-2015 05:35 AM
  8. alkarra's Avatar
    Same here with Mazda 3 and some headsets,I use Lumia 1520 though
    05-12-2015 03:27 PM
  9. alkarra's Avatar
    Any updates??
    05-12-2015 03:28 PM

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