This utility initiates Thecus N0204/N2200 NAS before using it. In case your N0204/N2200 already initiated successfully, no need to run this utility again. For normal firmware upgrade, just do it thru admin web UI.
When initiate N0204/N2200 the first time, you need this utility and also NAS firmware file. Please note Smart Utility works with V3 firmware only. It doesn't fit old N0204 firmware V1.xx.xx.