: Many users report issues when trying to update the TR-004 to latest versions (e.g., v1.2.0).
"Download u221 004" appears to be a specific technical query often related to firmware updates for hardware devices, most notably like the TR-004 . Users frequently search for this when encountering the FW004 error during a firmware download or installation. Overview of the Issue Download u221 004
What can I do if the firmware update fails with FW004 error? - QNAP : Many users report issues when trying to