Alcor Micro Unknown Fa00 F W 3613 Updated !!top!! Info
Warning: This section is for technicians only. Proceed at your own risk.
| Symptom | Likely Cause | Fix Difficulty | | :--- | :--- | :--- | | | Missing INF driver or corrupted USB descriptors. | Easy to Medium | | Shows "Alcor Micro..." but with a yellow exclamation | Driver loaded but failed to start (Code 10) — often firmware hang. | Medium | | Recognizes SD card but fails to format | Bad firmware handshake; the device times out. | Medium to Hard | | Device disconnects/reconnects constantly | Power management issue or failing capacitor on the reader board. | Hardware | | No response at all; "Device Descriptor Request Failed" | Dead chip or shorted pins in the card slot. | Hardware (Replace reader) |
Always run AlcorMP tools on a 32-bit architecture (Windows 7 or Windows 10 32-bit are highly recommended). 64-bit systems frequently block the temporary kernel-level filter drivers required to re-flash the chip. alcor micro unknown fa00 f w 3613 updated
Locate the main controller chip and the larger NAND flash memory storage chip.
Why? Because the is a relatively late firmware revision for this chip family. Most public drivers available on the internet (versions 1.0.6.0, 1.0.19.0, etc.) were written for older firmware like 3510 or 3520. When Windows queries the chip and receives "FA00 F/W 3613," the older driver's INF file does not contain a matching hardware ID. Hence, "Unknown Device." Warning: This section is for technicians only
Using a precision sewing needle or metal tweezers, gently short-circuit (bridge) together.
The internal microcode (Firmware version 3613 or 3653) has lost its map data or communication link with the storage memory. | Easy to Medium | | Shows "Alcor Micro
Type select disk X (replace X with your USB drive number) and press Enter.
If you are using a Dell XPS, Lenovo ThinkPad, or HP Spectre, the internal card reader showing "Alcor Micro Unknown FA00" is a known issue. These OEMs customize the USB PID (Product ID).
Before attempting a firmware flash, verify the exact hardware parameters. Download a reputable hardware reporting tool like or Flash Drive Information Extractor . Plug in the drive and look for the following parameters: