Thanks for this, have just found this after almost giving up on a fimrware updste for my ZuneHD. I feel I'm a step nearer getting my ZuneHD working!
Trying all of your steps on Windows 7 Enterprise 64bit.
The x64 package reports back as corrupt during install. The x86 package installs the five firmware update files in C:\ProgramData\Microsoft\Zune\Firmware Updates. Maybe packages labelled the wrong way around? I definitely have a 64 bit system.
Anyway regardless of that I assume the firmware files are the same files in both msi packages.. as we don't have a 32 or 64 bit zunes ;)
The PC Zune software (4.8.2345.0) when started still appears to try and check online for firmware and fails with the code C00D133C
Any ideas how to get past this?
I've checked my device manager for the Hardware IDs of the zune portable device, mine reports as
USB\VID_045E&PID_063E&REV_0100
This matches one of the entries in the FirmwareUpdate.xml file so I believe I'm heading in the right direction.... Do you have any suggestions?
Thank you again for your efforts, I'm sure I'll get there in the end..