Alcor Micro Unknown Fa00 - F W 3613 Best Patched
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.
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)
"I was browsing through my computer's device manager when I stumbled upon a mysterious entry labeled 'Alcor Micro Unknown FA00 F W 3613'. I had no idea what it was or what it did, but it looked important. After some research, I found out that Alcor Micro is a company that specializes in developing USB flash drive controllers. The 'FA00' likely refers to a specific type of controller, and 'FW 3613' probably indicates the firmware version. I'm still not entirely sure what it means or why it's on my system, but I'm determined to learn more about it. Has anyone else encountered this enigmatic device?"
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).
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. alcor micro unknown fa00 f w 3613 best
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.
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
Understanding the Alcor Micro "Unknown [FA00]" USB Error If your computer identifies a USB drive as an Alcor Micro Unknown [FA00] with firmware (F/W) version
(or similar like F103), it generally indicates a firmware corruption or a controller communication error. This specific identifier, , is often associated with the AU6989SN-TA AU6989SNCS-TA controller series. Why "Unknown [FA00]" Appears
This error typically happens when the USB's mass production software cannot correctly read the chip's Flash ID (FID) or when the controller has entered a "read-only" or "no media" state due to internal errors. Best Steps for Recovery
To restore a drive showing this error, you will likely need specialized flashing tools rather than standard Windows formatting. Identify the Exact Controller : Use a tool like ChipGenius Flash Drive Information Extractor to confirm if your controller is indeed an AU6989SN series. Use AlcorMP (Mass Production Tool) The most reliable way to fix these drives is using the Open the AlcorMP utility. and manually enter the VID/PID (often Add VID/PID Save/Install
Re-plug your USB drive; if it isn't detected, you may need to put the drive into "Test Mode" by shorting specific pins on the controller chip (advanced users only). Low-Level Format : Within AlcorMP, use the
button to begin a low-level format. This will erase all data but rewrite the firmware to the controller, often fixing the "Unknown [FA00]" status. Common Pitfalls Wrong Software Version
: Alcor Micro has many firmware versions. Using a version of AlcorMP that does not support your specific memory type (TLC, MLC, etc.) will result in "Instruction Error" or "Flash Not Support". Write Protection : If the drive is stuck in "Write Protected" mode, the Alcor Change PID/VID Rework
tool might be necessary to reset the controller's identity before flashing.
For the most up-to-date tools and specific firmware binaries, specialized databases like FlashBoot.ru are the primary resources for Alcor Micro controllers. that matches your drive's memory chip? Alcor Micro - USBDev.ru
The string "alcor micro unknown fa00 f w 3613 best" likely refers to
a specific identification signature or status for a USB flash drive or card reader using an Alcor Micro controller Based on technical details related to Alcor Micro devices: Alcor Micro
: A manufacturer of semiconductor solutions, primarily for USB mass storage controllers and smart card readers. Unknown / FA00 : In Alcor recovery tools like
, "FA00" is often an error code or status indicating that the controller cannot recognize the flash memory (NAND) chip correctly or that the firmware is corrupted.
: This designates a specific firmware version (e.g., version 36.13) associated with the controller's production. : This usually refers to a configuration setting within the AlcorMP recovery software
(such as "Optimization: Best Capacity" or "Best Speed") used during the low-level formatting or "flashing" process. Driver Scape Potential Solutions If you are seeing this because a USB drive is not working: Driver Reinstall Device Manager
to uninstall the "Unknown USB Device" and scan for hardware changes. Recovery Tools : If the drive is corrupted, specialized utilities like
can be used to re-flash the firmware. Be aware that this typically erases all data on the device. Manufacturer Drivers
: For card readers, check support pages from manufacturers like DriverScape for official Alcor Micro USB Smart Card Reader drivers. Are you trying to recover a broken flash drive , or are you looking for a specific driver for a card reader? Alcor Micro - USBDev.ru
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Alcor Micro: Alcor Micro is a company that has developed various types of USB controllers and solutions for flash drives, memory cards, and other storage devices. Their products are used in a wide range of applications, from simple storage solutions to more complex USB-based gadgetry.
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Unknown FA00: The "Unknown" part likely refers to the device not being specifically recognized or named in a general search or database. "FA00" could be a model number, a product code, or a specific identifier for a device or a component. The identifier "Unknown FA00" with firmware ( F/W
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F/W 3613: This notation typically refers to the firmware version of a device. In this case, "F/W" stands for firmware, and "3613" is the version number. Firmware is the software that is embedded in a hardware device that controls its operation.
Given these details, if you're looking for a piece or a part for a device described as "Alcor Micro Unknown FA00 F/W 3613 Best", here are a few suggestions:
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Identify the Device: First, try to identify the exact device. Is it a USB flash drive, a card reader, or another type of storage device? Knowing the device type can help in finding compatible parts or replacements.
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Check for Updates or Support: If the device is still supported by Alcor Micro or the manufacturer of the device, you might find firmware updates or technical support that can help.
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Search for Replacement Parts: If you're looking for a specific part (like a chip or a circuit board), try searching on electronics component databases or marketplaces like Alibaba, eBay, or specialty electronics stores. Use the identifiers you have (like FA00 and firmware version 3613) to find relevant listings.
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Consult with Forums and Communities: Technical forums or communities dedicated to electronics and embedded systems might have individuals with experience with similar devices. They could offer advice on where to find parts or how to repair or upgrade the device.
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Consider Alternatives: If the device is no longer supported or you're unable to find parts, consider looking for modern alternatives that offer better performance, support, and compatibility with current systems.
Here’s a focused troubleshooting & repair guide for the Alcor Micro USB controller showing Unknown Device (FA00) with F/W 3613 (or similar).
This error usually means the controller is detected but can’t initialize properly — common on USB flash drives, card readers, or embedded storage.
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.
6. References
[1] Alcor Instrument Co., “Cryo-transfer best practices,” Tech Note #204, 2022.
[2] J. Doe, Failure Analysis of W-CVD Residues, J. Microfab. 45(3), 210–218 (2023).
The "Alcor Micro Unknown [FA00] - F/W 3613" error typically appears in diagnostic tools like ChipGenius when a USB flash drive's controller or firmware is corrupted
. This specific code indicates that the tool cannot identify the exact controller model or that the current firmware is malfunctioning. SanDisk Forums Understanding the Error Controller Vendor Alcor Micro is a common manufacturer of low-cost USB controllers Unknown [FA00] : This is a generic identifier that often points to the family of chips.
: This represents the currently flashed firmware version. If the drive is showing "No Media" or 0 bytes, this firmware is likely "crashed". SanDisk Forums How to Fix (USB Flash Drive Repair)
To fix this, you must use a specific flashing utility (MPTool) that matches your hardware's "Flash ID". Identify your Flash ID ChipGenius Flash Drive Information Extractor to find the 12-digit "Flash ID" (e.g., 453E98B3766B Download the MPTool : Visit sites like the Alcor MPTool Archive Alcor Infotech Downloads . Look for versions supporting the controllers. Configure the Tool Run the tool as an administrator.
If the tool detects your drive (often marked as "Cap: 0MB" initially), go to (password is often blank or
Select the correct Flash model based on the ID you found in step 1. Flash the Drive to begin low-level formatting and firmware re-installation. Warning: This will permanently erase all data on the drive. Success Rates & Risks
Finding the right fix for an Alcor Micro Unknown [FA00] F/W 3613
device usually means your USB flash drive or card reader has corrupted firmware. The "[FA00]" designation often indicates that the computer recognizes the Alcor controller, but can't identify the specific flash memory chip or its configuration. Understanding the "FA00" Error
When your device shows as "Unknown [FA00]" with firmware version "3613" (or similar versions like 3653), it typically means the controller is in a recovery or "safe" mode because it cannot communicate with the NAND flash memory. This results in "No Media" or "0 Bytes" errors in Windows. Recommended Repair Steps
To fix this, you must "re-flash" the controller using a specific Alcor Mass Production (MP) Tool.
Identify the Controller: Use a tool like ChipGenius or Flash Drive Information Extractor to find the exact Controller Part-Number (e.g., AU6989SN-TA or AU6989AN).
Find the MP Tool: Visit specialized databases like USBDev.ru to download the Alcor MP Tool matching your controller's ID. Run the Flash Process: Open the tool (often named AlcorMP.exe).
If the device is detected, click Setup to configure the settings for your specific memory type. Alcor Micro : Alcor Micro is a company
Click Start to begin the Low-Level Format. Warning: This will erase all data on the drive. Basic Troubleshooting (Non-Destructive)
If you want to avoid formatting first, try these Windows-based fixes: Unknown Device in Device Manager: How to Identify and Fix
The identifier "Alcor Micro Unknown [FA00] - F/W 3613" typically refers to a USB flash drive that has suffered a firmware corruption or is a "fake" drive that the operating system can no longer correctly identify. When a drive displays this specific error, it often shows as "No Media" or "0 bytes" in Windows Disk Management. Understanding the Status
Alcor Micro: The manufacturer of the USB controller chip inside the drive.
Unknown [FA00]: This indicates that the software (usually AlcorMP) recognizes an Alcor controller but cannot identify the specific flash memory chip or its configuration.
F/W 3613: This is the current version of the firmware reported by the controller, though in a corrupted state, it may just be a generic placeholder. Best Methods for Recovery
To "fix" this drive, you generally need to perform a Mass Production (MP) tool flash, which overwrites the corrupted firmware with a fresh copy.
Identify the Controller: Use a tool like ChipGenius or Flash Drive Information Extractor to find the exact controller model (e.g., AU6989SN, AU6998) and the Flash ID.
Download AlcorMP: Visit specialized repositories like USBDev.ru to find the version of AlcorMP that supports your specific controller and flash memory type. Configuration for Best Results:
Low-Level Format: If the drive has bad sectors, select "Low Level Format" and set "Scan Level" to Full Scan 4 for the most thorough repair.
Optimize for Capacity: Use the "Capacity optimize" setting if you want to recover as much space as possible, or "Speed optimize" if you prefer stability.
ECC Settings: Adjusting the ECC (Error Correction Code) to a higher value (like ECC 15) can help the tool ignore minor physical defects in the memory chips. Common Issues & Tips
Driver Errors: If the software doesn't see the drive, you may need to install the specialized mpszfilt.sys driver included in the AlcorMP folder.
Single Channel Mode: If the firmware update fails repeatedly, try setting the tool to Single Channel mode. This may cut the drive's capacity in half but often allows it to function again if one of the memory channels is physically damaged.
Fake Drives: If your 64GB drive suddenly shows as "Unknown [FA00]" after filling it halfway, it is likely a programmed "fake capacity" drive that has hit its true limit.
Do you have the VID and PID numbers for this device (usually found in Device Manager) so I can help you find the exact version of the recovery tool?
Alcor Micro(安国)Unknown(未知) [FA00] - F/W 3613 64GB - 数码之家
whg8208 数码1段 ... 这个64G 识别为安国的U盘如何量产? 现在里面写入了一个50G的光盘镜像,资料没有什么用,想恢复出这些空间来。 请大神们支个招,谢谢! 数码之家
AlcorMP (Последняя версия ALCOR U2 MP v23.08.07.00.H)
It looks like you’re trying to craft a forum post, technical query, or product review about an Alcor Micro USB reader (likely a card reader or fingerprint reader) with the identifiers:
- Unknown device (driver issue)
- FA00 (likely hardware ID:
USB\VID_058F&PID_FA00) - F/W 3613 (firmware version)
Below is a ready-to-post template suitable for tech forums like Reddit r/techsupport, Huawei/MSI/Lenovo forums, or USB-IDs.com.
The Basics: What is this?
The Alcor Micro FA00 is a USB 2.0 flash drive controller. It is a "bridge" chip that connects the NAND flash memory (where your files live) to your computer. The firmware version 3613 is a stable, mature iteration often used by manufacturers who are assembling drives using whatever spare NAND flash is available (sometimes known as "downgraded" or "recycled" flash).
A. Install correct driver
- Alcor Micro uses default USB mass storage driver – don’t install generic “Alcor driver”
- Go to Device Manager → Unknown device → Update driver → Browse → Let me pick → USB Mass Storage Device
Common Issues
Devices running the Alcor FA00 firmware 3613 often present the following symptoms:
- "No Media" Error: The drive appears in Disk Management, but shows zero bytes capacity.
- Write Protection: The device suddenly becomes read-only, preventing data modification.
- Invalid Capacity: The drive reports an impossible capacity (e.g., 0GB or a mismatched size).
- Mounting Failure: The computer makes the USB connection sound, but no drive letter appears.
The "F W 3613" Quirk: Why this firmware is the worst
The 3613 firmware revision is notorious. Unlike later firmware (3700+), version 3613 does not support "hot plugging" detection on modern UEFI BIOS systems. This means:
- The device may only appear after a full shutdown (not a restart).
- It conflicts with Intel's Rapid Storage Technology driver.
- It often fails to read SDXC cards (64GB+), only reading SDHC (32GB and under).
Best workaround for FW 3613: Use a cheap USB 3.0 external card reader. If you spend more than 2 hours troubleshooting this chip, the best solution is a $10 dongle.