I spent the day, trying to retrieve Tyros sound packs, get YEM to work.. The user manual, tells you to go to a link if you want to use wifi - you get the 404 warning - page not available. It wasted hours of my day..
I have about 30 UVI libraries for Falcon Virtual Instrument.. You run their app, push a button or two and you are all set.. Yamaha should take a lesson from them. In general I think Yamaha is great.. But their dealing with sound packs, is POOR..