@Jiaszzz_ASUS Please, could you DM me the downgrade tool? I have no intention to use the latest BIOS so this should work for me. Really would appreciate your help!
I would also desperately need the downgrade tool. The ASUS updater had automatically updated the BIOS of my ProArt B550 after not having used it for a year. Now I cannot use any of my Thunderbolt 2 studio gear! Please help!