If your CDSD unit has the USB Port for updating, download the latest software here in ZIP and Self Extracting ZIP.
You will need a Microsoft Windows PC (XP or 2000) with a USB Port and a USB "A-B" cable, then follow the included instructions.
Zip Archive File
Self-extracting Zip File (exe)
With your serial number, please contact your EMM representative for the archive file password. OSX and Vista are not yet supported.