10.2.4.1 Features, Changes and Improvements How to Format a USB to FAT32 for use on IFD5XX/4XX IFD Displays "Configuration Error- IFD Requires Service " After Software Update Software Update Error- Updating Primary Error Troubleshooting IFD Error: AviDBUS Driver Error. VHF DSP APP Not Conforming during Software Update Your Avidyne System is NOT Running an approved software version