Please follow these steps to download and import new patches into your SY-300. If you have already done some of these steps, skip to the one's that you haven't done yet and continue from there:
1. Install the SY-300's USB driver.
You can get it here:
http://www.bossus.com/support/by_product/sy-300/updates_drivers/
2. Plug a USB cable into the SY-300, with the end going to your one of your
computer's on-board USB ports, preferably plugged into a USB 2.0 port, or a USB
3.0 port that is backwards compatible with USB 2.0 devices.
(Check your computer's technical documentation if you're not sure)
3. Install the BOSS Tone Studio application.
4. With your SY-300 plugged in and turned on, launch the BOSS Tone Studio
application. If you need to download and install it, you can get it via the link
provided above.
5. Click the TONE CENTRAL button, located in the lower left-hand corner of the
program, then choose the Genre you want.
6. Under the column heading that says: LIVESET, select which Preset Collection
you wish to import into your SY-300.
7. Once you've selected your choice, click the: ADD button at the bottom right
of the screen.
8. Click the: LIBRARIAN button.
9. Drag and Drop all presets over the left-most column (SY-300's Factory
Preset library) you wish to save to your SY-300.