SPECIAL NOTE: Firmware updates performed via GPIB or USB may appear to fail due to a reboot failure at the end of install. This can be identified by the "Application Update in Progress" progress bar on the instrument freezing for more than 15 seconds, then a failure/timeout message from the installer about a minute later.
If this happens, it is very likely that the update completed successfully even though an error is reported. Restart instrument manually and verify the new version number on the bootup splash screen. If the instrument shows the version that was just installed, then the update was successful and no further action should be required.
Note that these issues do not affect firmware updates via LAN.