Qtek8500: Microphone loopback!!

[larah]

Successfully upgraded my Qtek 8500 (UK) with both the Cingular and QTEK latests ROM

Works great.

Using for 2 days and now my microphone feeds everything back through earpiece and no one hears anything other end.

Same with walk and talk headset.

Works fine when working with bluetooth headset or car kit.

Is this a hardware fault and just coincidence, or have I messed up the registry or Radio etc.

Anyone seen similar.
Many thanks

[raskell]

Try a hard reset. Sounds like something may be corrupt in your audio managment files.

[larah]

Just tried a hard reset, but no joy I'm afraid.
I have reloaded the ROM twice as well.
Is there a way to rebuild and reload these management files.
It has to be software as the walk and talk headset uses a different electronic channel and separate mic!
Well that's my theory

[raskell]

http://www.jetwaremobile.com/install.htm

Here's a link to Jetware Mobile's website. Since you are obviously using a Bluetooth headset and a handsfree car kit, it may be that the BT extension is getting twisted up. You can download and install a free trial I believe for 30 days. I did not need this for my BT connections with the QTEK 8500 but these things can be very hardware specific. By the way, did you try the phone after hard reset and prior to pairing with any of your BT devices?

[larah]

Sorry to clarify, it is the handset mike that is not working.
When used with BT, voice is transmitted OK to recipient.
However using handset by itself all you hear is a slightly delayed repeat of your own voice in the handset earpiece and the call recipient hears nothing.
Thanks
Danny

[thompsd]

I had a similar thing happen to a Sony Z600 and traced the problem to a resistor that failed. Apparently this controled where to route the audio when a wired headset was plugged in and when it failed everything routed through the headset port vs the speaker. Not sure if this is what's happening to your Qtek, I've got one as well and sometimes it just acts wierd, drops calls, wont hang up, wont recognize key presses but I just attribute it to the MS operating system. By the way, you can pick up Z600's fairly cheap, it's a great 2nd phone & syncs with outlook, I picked up another after my first crapped out with no problems.