Alcor Micro Unknown Fa00 - F W 3613 < 2027 >

This string typically appears in or USB chipset detection tools (like ChipGenius, USBDeview, or UsbTreeView) when a USB flash drive, SSD enclosure, or card reader is connected but not functioning correctly.

Based on available data, the Alcor Micro Unknown FA00 - F/W 3613 boasts several notable features:

Here is a draft for the blog post.

: The F/W 3613 designation refers to a specific version of the internal firmware. If the controller reports "Unknown [FA00]" alongside this version, it often indicates the controller is alive but the Flash ID (FID) —the unique code identifying the memory chip—is missing or unreadable. alcor micro unknown fa00 - f w 3613

Right-click the executable file (usually AlcorMP.exe ) and select .

The NAND flash memory cells have degraded beyond physical repair thresholds.

Download a diagnostic utility such as or Flash Drive Information Extractor (Innostor) from trusted repositories like USBDev. Insert your corrupted USB drive. Run the software to extract two critical data sets: This string typically appears in or USB chipset

The core repair software used for Alcor Micro controllers.

Removing the drive while it was in use can cause this, especially if the device was midway through a firmware update or write process. How to Fix Alcor Micro Unknown Device Error Follow these troubleshooting steps in order. 1. Simple Troubleshooting

If you are a hardware enthusiast, you can dump this firmware using a Bus Pirate or CH341A programmer (the SPI flash is usually next to the crystal oscillator). If the controller reports "Unknown [FA00]" alongside this

💡 If the software still says "Unknown," try plugging the drive into a USB 2.0 port on the back of your computer (motherboard port). USB 3.0/3.1 ports often interfere with the low-level flashing commands required by Alcor controllers. To help you find the exact software you need, tell me: What is the Controller Part-Number from ChipGenius? What is the Flash ID (the long string of letters/numbers)? Are you trying to recover data or just fix the drive ?

Many devices reporting this specific error are found in "no-name" or fake high-capacity drives (e.g., a "2TB" drive that is actually 16GB). These often use Alcor AU6989 series controllers or Chinese clones that mimic them. Common Technical Profile Controller Vendor: Alcor Micro . Status Code: Unknown [FA00].

Because the drive is suffering from low-level controller corruption, standard Windows formatting tools or disk partitioning commands (like diskpart ) will usually fail, throwing "Write Protected" or "Device Not Ready" errors. You must use specialized tools to reflash or reset the controller. Phase 1: Verify Chip Details with ChipGenius