FSi 10 Software Version 2.4.2 for the FM HD generator. Once you have this file downloaded, unzip it and read the included instructions. It is imperative to follow the instructions as some settings will be restored to factory default upon successful completion of the software upgrade. The "ASi 10, FSi 10, and XPi 10 SW CD Creation Application Guide" includes a detailed step by step process to create the 2.4.2 upgrade CD from the downloaded file using a CD-RW drive. The "FSi 10 Software Upgrade, Upgrading to v2.4.2 Application Guide" will provide upgrade assistance after the upgrade CD has been created.