If it helps anyone, on my ASUS X670E MB, I'm not supposed to be able do downgrade the Thunderbolt firmware if I've updated to the newest BIOS.What works for me after upgrading to the newest BIOS, is downgrade with USB Flashback to an earlier AGESA li...
@Jiaszzz_ASUS Could you DM me the tool too, please? My Kingston DataTraveler Max is only getting 34MB.sec in CrystalDiskMark when it gets 1,000/900MB/sec read/write.
