Here is a link to the x64 firmware: [URL] There appears to be a problem in the catalog file and we have pushed this back for resolution.  Until then, here is the manual update. Regards,  
Hi,  we use SUU 7.3.0.96 to update 'Network_Firmware_P32M4_WN32_7.6.15' package to R720 Windows 2012 server and get application error with failing fwprgmr32.exe application.  Event errors:
fwprgmr32.exe error during Network Firmware update