Download a tool called or Flash Drive Information Extractor . Plug in your USB drive.
Search for "AlcorMP" followed by your controller part number (e.g., "AlcorMP AU6989").
Before downloading tools, you must confirm the hardware details. Using a generic formatter can permanently "brick" the drive. alcor micro unknown fa00 - f w 3613
You cannot use a standard Windows format tool for an FA00 error. You need the Alcor Micro Production Tool.
Most FA00 errors can be fixed by the "Optimized Capacity" or "Default" settings. Start: Click the "Start" (S) button. Download a tool called or Flash Drive Information Extractor
Note down the (Vendor ID) and PID (Product ID)—usually 058F and 6387 for Alcor. Step 2: Download the Correct Alcor MPTool
The "Alcor Micro Unknown FA00 - F/W 3613" error is a common headache for users dealing with corrupted USB flash drives, generic thumb drives, and SD card controllers. This specific firmware (F/W 3613) and chip ID (FA00) indicate that your computer recognizes the hardware interface but cannot communicate with the memory chips inside, often resulting in a "Disk is Write Protected" or "Please Insert Disk" message. Before downloading tools, you must confirm the hardware
Alcor Micro is a massive manufacturer of USB bridge controllers. Their chips are found in everything from high-end Transcend drives to unbranded "freebie" sticks.
Reliable databases for these tools include sites like or USBDev . Step 3: The Repair Process (Flashing) Warning: This process will destroy all data on the drive. Run as Administrator: Open the AlcorMP.exe file.