I just started having some problems with the audio on my phone.
I was using the app MixZing to play music through one of those cassette player connections in my car. It had been working fine, but it suddenly stopped working and I was only getting music playing through the phone's speakers. I moved the connection around a bit and it started to work again through the car's speakers.
Later that night I noticed I was having some problems with being unable to hear anyone on the other end of calls I was making. Through some experimentation I have found that: a/others can hear me; b/ I can hear others through using either the speakerphone or headphones; c/ the phone's speakers will not play music through MixZing any more; d/ the phone will ring normally when a call is incoming, some other sounds work while others don't (volume notification while adjusting volume works, startup tone doesn't).
I have updated the firmware and uninstalled MixZing, but neither has produced the desired result; my phone's audio is still not working properly.
Please, if anyone has any suggestions, let me know.
Edit: Forgot to say that it is a Samsung Galaxy S Captivate (I896)