Hi, I know that 6230 don't support wav, mp3 and another types of audio files, but is there a way to upgrade the phone software or do something else to solve this problem? My sw version is 04.44 21-09-04. thanks
Only by the "buying a new phone" method of upgrading.
For the 6230, it will play MP3 through its media player application, but only MIDIs from a Java application. This is true on all versions of the device.