GT-10B, GT-10: Advanced USB Driver
Before installing the GT-10 or GT-10B USB driver onto your computer, you must change the GT-10/GT-10B default USB Driver mode.
First make sure the GT-10 or GT-10B is not connected via USB, and then:
1. Press SYSTEM.
2. CURSOR to "USB," and then press CATEGORY/ENTER.
3. Turn the VALUE dial to change Driver Mode from Standard to Advanced.
4. Power off the GT-10/GT-10B, and then on again.
Note: Once you've set the GT-10/GT-10B as described above, install the driver on your computer following the instructions included with the USB driver downloaded from the RolandUS website.