[quote="“ylelocat” date=“2016-01-22 21:23:16"”]
I’ve got the same issue both A4 and AR. Just installed new OB beta and can’t upgrade boxes OSes via C6… both stuck at waiting for sysex while the file is being transferred.
[/quote]
I had a similar problem. I plugged my AR into my keyboard usb (Mac) and this was the problem. Once I plugged the AR directly into an USB-port on the back of my iMac, it worked.