Fault codes covered
79-03
This fault is set when an invalid software update is detected. Conditions
include failure to open the update file (.bex or .dat), attempting to install a software version equal to or lower than the currently installed version, or read/seek errors while accessing update files during installation.
The most likely cause is incorrect software version selected, corrupted update file, or incomplete copy of update files to the USB drive.
Confirm the update version is newer than the installed version. Reload the correct update files onto the USB drive and retry the update using a validated software package.
NOTE: Best results will be obtained by using a USB memory device that is between 4GB and 32GB in size and formatted as a FAT32 device. Any other formatting (NTFS, exFAT, etc.) may result in an error.
Source: ACHPVSR454-02SM troubleshooting pages.