First, make a backup of your data.zip fileOpen the data.zip within
[Please Register or Login to download file] , don't unzip it!
Go into ui_android->audio.
Rename "!beep.wav" to "org_!beep.wav"
Rename "!alert6.wav" to "!beep.wav"
Save your work inside winrar, and click "yes" when prompt to save changes.
Start the program and go for a ride...