Hey Alliehoe,
Sorry about your difficulty. It specifically says on "Ketron.it" that the 4.1b software download is not for Auyda 4 and 5!
I think you should RESET your Auyda 4 to the factory default.
Turn the Audya OFF. Then, while holding down the F10 key and the UNPLUGGED button, turn the Audya back ON. Maybe this will help.
Good Luck,
Don P
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GENOS, Roland FR-8X V Accordion, Bose Compacts.