If none of the above works, accept that the has a known silicon bug where it fails the USB-IF command set test. There is no updated firmware from Alcor to fix this. Replace the hardware.
Alcor Micro is a prominent Taiwan-based fabless IC design company that specializes in semiconductor solutions for PC peripherals and consumer electronics. Their controllers are the "brains" of millions of USB flash drives and card readers. When a system identifies a device as "Alcor Micro Unknown," it usually means the generic firmware is visible, but the specific branding (like SanDisk or Kingston) has not been initialized or has been corrupted. 2. Understanding the Status String alcor micro unknown fa00 f w 3613 updated