Power off, and then back on the Juno-Di. This is the latest version of operating system for the Juno-Di.Press EXIT, then press ENTER to confirm the change (if you are changing this setting).Use the buttons to select 'MIDI' and then use the down arrow button (v) to select 'USB Driver.' Use the Value Dial to select the desired setting ('VENDOR' or 'GENERIC').This option is also referred to as 'Class Compliant.' It also allows the Juno-Di to connect to a device (such as an iPad or other iOS device) that has built-in MIDI drivers. Generic: This setting allows the Juno-Di to connect to a computer without using a Roland-supplied driver.From February 16th to March 17th, test drive the JUNO-60 Software Synthesizer for free with a Roland Account Simply log into Roland Cloud Manager and install the JUNO-60 plugin from your library. You can download the latest USB drivers for the Juno-Di from our website: Roland - JUNO-Di | Mobile Synthesizer with Song Player This option allows for MIDI data transfer between the Juno-Di and your computer. Detailed recreation of the JUNO-60 synthesizer in a modern plug-in instrument. Vendor: This setting requires a Roland USB driver to be installed on your computer.The USB Driver setting in the Juno-Di allows you to select how the USB connection from the Juno-Di communicates with other devices (such as a computer).