USB flash drives are essentially mini-computers consisting of a memory chip (NAND flash) and a brain called the controller. Alcor Micro is one of the world's most widely used controller manufacturers.
This "Unknown [FA00]" status indicates that your computer's standard drivers cannot communicate with the Alcor Micro controller chip inside the drive, often due to corrupted firmware or a controller that has entered a "locked" state. Why This Happens
This behavior is common across many mass storage controllers, particularly those from Asian manufacturers.
Go to the tab and ensure the device power setting is configured to 200mA . Save the settings and return to the main dashboard. alcor micro unknown fa00 f w 3613 updated
A dead or corrupted flash translation layer (FTL) – usually from:
The Alcor FA00 controller appears in:
Look at the text box. Find the (like AU6989SN) and the Flash ID (FID) code. Copy these numbers down. Step 3: Flash the Updated Firmware Why This Happens This behavior is common across
Verify the Scan Level is set to Low Level Format if the drive has severe bad sectors.
If these software fixes fail and the FID still shows as 0xFFFFFF or 898989 , the flash memory chip has likely reached its end-of-life or suffered a physical failure. Repair of damaged flash drives - elektroda.com
: For "FA00" errors, you may need a version specifically compatible with "SN-TA" or "SN-GT" controllers. Configure the Driver Open AlcorMP and click the Enter your device's Add VID/PID Save/Install to ensure the tool can "see" the device. Low-Level Format (Production) Plug in the drive. If it's not detected, click Refresh (R) A dead or corrupted flash translation layer (FTL)
Поддерживаются микроконтроллеры серии Alcor AU698x и AU699x: AU6989SN-GTC, AU6989SN-GTB, AU6989SNL-B, AU6998SN-GTA \ AU6989SN-GTA, Alcor Micro - USBDev.ru
Unplug all external USB storage drives to prevent accidental formatting.
The significance of this technical label lies in the world of . Alcor Micro is a prominent manufacturer of controller chips used by third-party vendors to build affordable storage devices. When a USB drive becomes "write-protected," shows "no media," or reports an incorrect capacity, the "FA00" error or the specific firmware version "3613" becomes the key to its recovery. For technicians, seeing "Updated" next to this string suggests a successful reflashing of the controller’s instruction set, essentially "re-birthing" the hardware.
: AlcorMP performs a low‑level format that completely erases all data. Back up everything you can before proceeding.