This page indexes and provides links to the most recent and significant earlier versions of the Prius Mini-Scanner firmware. To download a firmware version, right-click the link and select "Save Target As..". Select a location on your computer in which to store the file. When the file download is complete, un-zip the contents of the file using WinZip or the built-in capability of Windows XP. Upload the resulting file to the Mini-Scanner using the firmware update procedure, which is published separately.