FAQ #11 Ocarina lights up but does not reproduce any content

Ocarina does not reproduce any sound when connected to the USB cable (this is a safety device to prevent children from using if connected). If the track title is scrolling on the screen, check that the volume is not at minimum. Press the right arrow until the volume symbol on the screen has 5 notches. Check that the downloaded files are in the supported formats: Ocarina does not reproduce files that it does not recognize (corrupted files and files containing too long titles or special characters).
It is always advisable to test the original tracks on your pc before loading these onto Ocarina.
See also FAQ 8.
Finally, try a listening test with headphones.
If the problem persists, open a «Help Ticket».