Alcor Micro Unknown Fa00 F W 3613 Best 🆕
The identifier "Unknown FA00" with firmware (F/W) version 3613 refers to a specific state encountered when using recovery tools for USB flash drives powered by Alcor Micro controllers (such as the AU698x series). This usually happens when the software (AlcorMP) cannot fully identify the flash memory chip or the controller’s current state is corrupted. Best Tools for Recovery
To fix a drive showing "Unknown FA00" or "F/W 3613" errors, you must use a production utility (MPTool) that is compatible with your specific controller-memory combination.
AlcorMP (Standard Version): This is the primary utility for flashing Alcor USB 2.0 chips. You can find the latest versions, such as ALCOR U2 MP v23.08.07.00.H, on specialized sites like USBDev.ru.
AlcorMP MD (Modified Editions by nat27): These are often better for "unknown" errors because they include updated flash lists and additional driver support to force identification of generic or fake chips.
FCMPTool: Originally for counterfeit or "fake" drives, this tool is now largely integrated into modern AlcorMP versions but remains useful for drives that the standard tool refuses to recognize. Steps to Resolve "Unknown FA00 / F/W 3613"
Identify the Chip: Use a hardware info tool like ChipGenius or Flash Drive Information Extractor to find the exact Controller Model (e.g., AU6989SN) and Flash ID (FID).
Download Compatible Software: Locate a version of AlcorMP that explicitly lists your controller and memory type (e.g., MLC-8K, eD3, or TLC) in its description. Adjust Scan Settings:
If the drive is still "Unknown," go to the Setup menu (usually no password or "0000"). Change Scan Level to "Full Scan" or "High-level Format".
Set MP Mode to "Capacity Optimize" for the best chance of recovery. alcor micro unknown fa00 f w 3613 best
Manual Driver Installation: If the tool does not see the drive, use the LoadDriver.exe utility (often found in the tool's folder) to manually install the Alcor bus driver for your specific VID/PID. Common Causes
Bad Sectors: If the tool shows "Bad Block" errors, the memory chip may be physically failing.
Wrong Software Edition: Alcor tools are highly specific. A version meant for eD3 memory will likely fail on TLC memory.
Write Protection: This "Unknown" state often triggers a write-protection error, which only a low-level format via these tools can clear.
AlcorMP (Последняя версия ALCOR U2 MP v23.08.07.00.H)
The string " Alcor Micro unknown FA00 F/W 3613 " is not a specific product feature but a technical error report often generated by diagnostic tools like ChipGenius when a USB flash drive's controller or firmware is corrupted or unrecognized. Understanding the Error
When a flash drive displays these specific identifiers, it generally indicates a communication failure between the operating system and the hardware: Alcor Micro: The manufacturer of the USB controller chip. FA00
: This is a generic "Unknown" status code rather than a real chip model. It often acts as a placeholder for the AU6989SN-TA or AU6989SNCS-TA controller when the tool cannot read the Flash ID (FID). The identifier "Unknown FA00" with firmware ( F/W
F/W 3613: Refers to a specific firmware version. If the controller is listed as "Unknown FA00," this firmware reading may be a default or incorrect value due to corruption. Common Causes
Firmware Corruption: The software that manages how the drive reads and writes data has crashed.
Physical Hardware Failure: A broken connection or a dying NAND flash chip.
Fake Flash Drives: Cheap or counterfeit drives often use Alcor controllers that report "0 MB" or incorrect capacities when they fail. Possible Recovery Steps
If you are trying to fix a drive showing this "feature" or error, you can attempt these methods:
Low-Level Formatting: Use official Alcor Mass Production tools like AlcorMP or FC_MpTool. These programs are designed to re-flash the firmware onto the controller.
ChipGenius Diagnostic: Run ChipGenius to find the actual VID (Vendor ID) and PID (Product ID). For Alcor Micro, these are often VID = 058F and PID = 1234.
Command Prompt Clean: Try the Windows diskpart utility to "clean" the drive and remove corrupted partitions. Open CMD as Administrator. Type diskpart, then list disk. Type select disk X (where X is your USB drive). Type clean. Confirms VID/PID (often 058F:6387 or 058F:FA00 ) Helps
Note: Using firmware tools will permanently delete all data on the drive. If the drive continues to report "0 MB" or "No Media" after flashing, the hardware is likely permanently damaged. Repair of damaged flash drives - elektroda.com
C. Use ChipGenius (Windows)
- Confirms VID/PID (often
058F:6387or058F:FA00) - Helps match exact MP tool
2. Experimental
- Sample: Alcor Micro Unknown FA00 F W 3613 (as-received, dimensions ~5×5 mm)
- Tools:
- Alcor cryo-transfer system (maintained at −140°C for volatile species preservation)
- SEM (JEOL 7600F) with EDS
- XRD (Bruker D8)
- Procedure: Sample mounted on Alcor-specific puck; vacuum integrity checked; imaged at 5 kV, 10 kV; EDS line scan across feature of interest; XRD for crystalline phases.
Decoding the Alcor Micro Unknown FA00 F W 3613: The Ultimate Guide to Drivers, Fixes, and Best Practices
1. Introduction
Alcor systems are often used for precise micro-scale environmental control (e.g., cryo-ultramicrotomy, vacuum transfer). Unknown samples labeled with project codes like FA00 and F may indicate failure analysis (FA) sample #00, type F (film). The suffix “W 3613” likely denotes wafer ID or work order 3613. The term “best” in the request suggests a search for optimal analysis conditions.
Pros and Cons
Pros:
- Ubiquitous Support: Works on virtually any computer with a USB slot.
- Durability: These controllers are simple and robust. They handle being unplugged without "Safely Remove Hardware" better than more complex controllers (though you should still eject safely!).
- Cost: Drives using this chip are usually very inexpensive.
Cons:
- Slow Write Speeds: Writing large amounts of data is tedious.
- Risk of Fake Drives: This chip is the go-to for scammers selling fake capacity drives on eBay or Wish.
- Unknown NAND Quality: Since the controller is generic, the actual flash memory inside could be high-quality brand-name stuff, or it could be factory reject "black chips." It’s a lottery.
Review: Alcor Micro Flash Drive Controller (FA00 / FW 3613)
Verdict: A reliable "no-name" workhorse for basic storage needs, but don't expect speed records.
If you have found a USB flash drive with the hardware ID "Alcor Micro Unknown FA00" or have run a flash inspection tool like ChipGenius and seen FW 3613, you are dealing with a generic USB mass storage controller. These are commonly found inside unbranded USB drives, promotional swag, or cheaper "no-name" drives purchased online.
Here is the breakdown of its performance and usability.
Step 4 – Reflow controller
- Add flux, hot air 350°C, 30 sec
- Or drag solder with iron if pins visible

