Hey Al,
Go to this link and you will find the file and a PDF of how to do the update.
http://avid.force.com/pkb/articles/en_US/download/en435951You need to install the FWx32 updater on a laptop that can connect to the firewire port on your SC48, then connect that laptop to the firewire and click on the firmware updater. It should take a few minutes. Directions below are from the PDF how to file.
Windows
To install the FWx32 driver on Windows and update VENUE FWx firmware:
1 Go to the Avid website (
www.avid.com) and download the latest Avid FWx32 updater for Windows (.zip file). After downloading
the updater, make sure the .zip file is uncompressed.
2 Double-click Install Avid VENUE FWx32.exe. You do not have to restart your computer.
3 Connect your computer to the FWx FireWire port on your VENUE system.
4 In your computer’s Start menu, locate and double-click Avid VENUE FWx32 Firmware Updater. The update will take several minutes.
5 Launch Pro Tools, and do the following in Pro Tools:
• Go to Setup > Playback Engine and choose Avid VENUE FWx32 from the Current Engine pop-up menu.
• Go to Setup > I/O... and click Default on both the I/O Setup Input and Output tabs to confirm the presence of 32 I/O paths.
Or if you have a Mac:
Mac
To install the FWx32 driver on Mac and update VENUE FWx firmware:
1 Go to the Avid website (
www.avid.com) and download the latest Avid FWx32 OSX updater for Mac (.dmg file).
2 After downloading the updater, double-click the .dmg file to uncompress it.
3 Double-click Avid VENUE FWx32.pkg to install the FWx32 driver on your computer.
4 Restart your computer when prompted to do so.
5 Connect your computer to the FWx FireWire port on your VENUE system.
6 Navigate back to the Avid FWx updater, and double-click Avid VENUE FWx Firmware Updater. The firmware update will take several
minutes.
7 Launch Pro Tools, and do the following:
• Go to Setup > Playback Engine and choose Avid VENUE FWx32 from the Current Engine pop-up menu
• Go to Setup > I/O... and click Default on both the I/O Setup Input and Output tabs to confirm the presence of 32 I/O paths
Good Luck