No sounds in Ethos 1.5X is the #1 issue we're seeing now. People want a simple video to follow, and this is it. Sorry, it was recorded in one take on a cell phone. I showed how you first really, really, really should backup your transmitter's model files. Then I showed which folder the sound files were located (audioi) and how I moved the to EN (English) \ US (Unite States) and then I dropped it like it's hot into that folder.

The last step was to go into system/ General and I found the audio folder and switched from "default" to US so that the radio knew where the proper sound files were located.

Sorry for the simplistic cell phone video, but you'll get the point.