How do I perform an update using the EZ Flash 3 utility?
To use ASUS EZ Flash 3 through USB, enter Advanced Mode BIOS setup, select Tool menu's ASUS EZ Flash Utility, switch to Storage Device(s), and find your flash drive with Up/Down keys. Locate USB containing desired BIOS, confirm selection for update initiation and reboot after completion per instructions provided in manual section dedicated to utility usage guidance. (Page 5)
From the official ASUS Rog Strix B450 F Gaming manual, page 5
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