PlacefileNation was created and is maintained by a team of seasoned meteorologists and weather enthusiasts to provide weather data placefiles for GRLevelX, GR2, GR3, WSV3, and Supercell Wx applications across the United States.
Analyzing radar with reliable data overlays provides a more seamless, worry-free experience. We know this, which is why we manage and monitor our own data feeds. All placefile URLs are permanent — we never break your setup.
Questions or feedback? Reach us at
Generate a custom placefile with range rings centered on any coordinate. Generates and downloads directly to your computer.
This specific error sequence, "Alcor Micro Unknown FA00 FW FA04 Hot,"
typically appears in mass production (MP) tools when a USB flash drive's controller or firmware is corrupted or unrecognized. Technical Summary FA00 Error : This often indicates that the Alcor MP Tool
cannot identify the controller model or that the flash memory chip's ID (FID) is returning invalid data (e.g., all zeros or 898989898989
: Refers to a specific firmware version or a failure code during the firmware verification process. : Usually suggests a hardware-level issue, such as a short circuit
or a physically overheating controller, which prevents the software from establishing a stable connection. Alcor Infotech Pvt. Ltd. Recommended Repair Steps To attempt a recovery, follow these procedural steps: Identify Genuine Hardware : Use a tool like ChipGenius
to find the actual VID/PID and controller model (e.g., AU6989SN). Use Modified MP Tools
: Standard versions may fail. Download "modified" versions like ALCORMP by NAT27 which are more lenient with unknown IDs. Manual Driver Installation Open AlcorMP and click the Manually enter your device's VID/PID (e.g., Add VID/PID Save InstallDrive Test-Mode (Hardware Bridge)
: If the software still says "Unknown," you may need to enter "Test-Mode" by short-circuiting specific pins on the flash memory chip while plugging it in. This forces the controller into a basic state where the MP tool can see it. Settings Adjustment : In the MP tool settings: to "Capacity Optimize." Scan Level to "Full Scan4" for deep analysis. Alcor Micro - USBDev.ru
Understanding the Alcor Micro Unknown FA00 FW FA04 Hot Issue: Causes and Fixes
The "Alcor Micro Unknown FA00 FW FA04" error typically surfaces when a USB flash drive or SD card reader using an Alcor Micro controller malfunctions. Users often report that the device becomes "Hot"—meaning it is either physically overheating or showing up as a "Hot Plug" device that Windows cannot properly initialize. What Does the Error Mean?
When your system reports "Unknown FA00 FW FA04," it is failing to read the firmware (FW) on the Alcor controller chip.
FA00/FA04: these are specific error codes indicating a handshake failure between the controller and the NAND flash memory.
Unknown: The operating system recognizes a device is plugged in but cannot identify its capacity, file system, or name.
Physical Heat: If the drive is getting physically hot to the touch, it usually indicates a hardware short or a controller stuck in a high-power boot loop. Potential Causes
Firmware Corruption: The internal software of the USB controller has crashed.
Incompatible Drivers: Windows is trying to use a generic mass storage driver that doesn't match the Alcor chipset.
Partition Table Loss: The "low-level" format of the drive has been wiped.
Hardware Failure: A physical component inside the USB stick has burned out, often causing the overheating. Step-by-Step Fixes 1. Hardware Cool Down and Port Swap Before trying software fixes, address the heat issue. Unplug the device immediately if it is hot. Let it sit for 10 minutes.
Plug it into a USB 2.0 port instead of 3.0 (blue). USB 2.0 provides lower voltage, which can sometimes stabilize a failing controller. 2. Use AlcorMP (Production Tool)
The most effective way to fix Alcor Micro errors is using the AlcorMP tool. This is a factory-level formatting utility. alcor micro unknown fa00 fw fa04 hot
Identify your chip: Use a tool like ChipGenius to find your specific Alcor controller part number (e.g., AU6989SN).
Download AlcorMP: Match the version of AlcorMP to your controller number.
Run as Admin: Open the tool, click "Setup," and then "Start." This will perform a low-level format and re-flash the FA04 firmware. ⚠️ Note: This will erase all data on the drive. 3. Update Drivers via Device Manager
If the device isn't physically broken, a driver reset might help. Right-click the Start button and select Device Manager. Expand Universal Serial Bus controllers. Find the "Unknown Device" or "Alcor Micro" entry. Right-click and select Uninstall device. Unplug the drive and restart your PC. 4. Check for Short Circuits
If the drive gets "Hot" within seconds of being plugged in, it is likely a hardware short. Check the USB connector for bent pins. Look for debris or lint inside the port.
If the heat persists, the NAND flash chip is likely dead, and the drive should be discarded for safety.
💡 Pro Tip: If ChipGenius cannot see the device at all while it's getting hot, the controller is likely fried. At this stage, data recovery is nearly impossible without professional lab equipment.
If you’d like to try recovering specific data before formatting or need help finding the right AlcorMP version for your chip: Share the ChipGenius report
Mention if the drive is a specific brand (like Kingston or Transcend)
Let me know if the heat is constant or only when transferring files
To help you find the right software, could you tell me the "Controller Part-Number" provided by ChipGenius?
This specific error signature—Alcor Micro Unknown [FA00] F/W FA04—is a classic indicator of a corrupted or "fake" Alcor flash drive controller. When these devices become "hot" and "unrecognized," it typically signifies a critical hardware or firmware failure. The "FA00" Technical Meaning
Controller Identity: The code [FA00] with firmware FA04 generally appears when the USB mass storage production tool cannot properly communicate with the controller chip.
Aka AU6989SN-TA: Documentation often identifies this "Unknown FA00" state as belonging to the Alcor AU6989SN-TA or AU6989SN-GT series.
"Fake" Signature: This specific "FA00" identifier frequently pops up in counterfeit or low-grade flash drives (often branded as Kingston or generic 2TB drives) where the internal hardware does not match the reported capacity. Why It's Getting Hot
If the device is "scalding hot" to the touch while plugged in:
Internal Short: A hardware failure in the Alcor controller IC or the NAND flash memory is likely causing an electrical short.
Overvoltage/Overload: Cheaply made generic drives often lack proper power management, leading to the controller overheating when it fails to initialize the firmware.
Warning: Disconnect it immediately. Extreme heat in a USB device can damage your computer's USB port or pose a fire risk. Troubleshooting & Recovery This specific error sequence, "Alcor Micro Unknown FA00
Because the device is physically overheating and returning an "Unknown" status, software fixes are rarely permanent, but you can try these steps:
Low-Level Formatting: Tools like AlcorMP (Alcor Micro Production Tool) are sometimes used to "re-flash" the firmware, but this requires finding the exact version for the AU6989 series.
Flash ID Check: If the Flash ID (FID) comes back as 898989898989 or similar nonsense, the memory chip is physically dead.
Data Safety: Do not keep the device plugged in if it is hot. If the data is critical, you should consult a professional Data Recovery Specialist.
If you'd like to try a firmware flash, do you have the exact VID and PID (found in Device Manager)? This helps in finding the correct mass production tool version. Flash Drive Repair - Facebook
If you’ve plugged in a USB drive or SD card reader only to see "Alcor Micro USB Device" with a generic icon and a strange firmware ID like FA00 or FA04, you aren't alone. It’s a common sign of a corrupted controller.
When that device also starts getting hot to the touch, it’s time to stop and troubleshoot. Here is what is happening and how to fix it. What is Alcor Micro FA00/FA04?
Alcor Micro makes the "brains" (controllers) for many budget-friendly USB sticks and card readers. When you see "FA00" or "Unknown Device," it means the device has entered Fail-Safe Mode. Firmware Corruption: The internal software is "stuck."
Identification Failure: Windows sees the chip but doesn't know what it’s supposed to be.
Thermal Runaway: If it’s getting hot, the controller is likely stuck in a high-power loop or has a hardware short. ⚠️ Warning: The Heat Factor If the device is physically hot, proceed with caution: Unplug it immediately if you smell burning plastic.
Heat usually indicates a hardware failure (a shorted capacitor or NAND chip).
Software fixes rarely fix physical overheating and may cause the device to "pop." How to Fix the "Unknown Device" Error
If the heat is mild and you want to try a software recovery, follow these steps: 1. Identify the Chipset
Download a tool like ChipGenius or Flash Drive Information Extractor. Look for the VID (Vendor ID) and PID (Product ID). For Alcor, the VID is usually 058F. 2. Find the Alcor MPTool
Once you have the specific controller model (e.g., AU6989SN), you need the Alcor MPTool (Mass Production Tool). Search for the version that matches your firmware (FA04).
Note: These tools are often hosted on enthusiast sites like FlashDrive-Repair or Russian tech forums (as they aren't officially released to consumers). 3. Flash the Firmware Run the MPTool as Administrator.
Click "Setup" and keep settings on default (unless you are an advanced user). Hit "Start."
This will "low-level format" the drive and reload the FA04 firmware. ⚡ The Quick Verdict
If it's just "Unknown": A firmware flash with MPTool will likely bring it back to life. 🔹 Step 5 – Linux users Run lsusb and dmesg -w
If it's "Hot": The hardware is dying. Back up any data immediately (if it even mounts) and toss the drive. A $10 USB stick isn't worth frying your computer's motherboard port. To help you find the exact recovery tool, let me know: Did this happen after a firmware update or suddenly? Do you need to save the data, or just fix the drive? What is the VID and PID from ChipGenius?
I can point you to the specific download link for your controller version.
The error code (sometimes accompanied by ) in Alcor Micro mass production tools like
typically indicates that the software cannot communicate with the flash memory chip, often due to a controller mismatch or physical hardware failure. Meaning of FA00 / FA04 Codes
: This is a generic status code often meaning "Unknown Device" or "No Flash". It usually occurs when the controller (e.g., ) is detected, but the NAND flash memory chip's ID ( ) cannot be read.
: This typically refers to a firmware loading failure, where the tool attempts to apply a firmware profile that is incompatible with the specific revision of the hardware.
: This likely refers to the USB drive physically overheating, which is a strong indicator of an internal short circuit or electrical damage to the controller or flash memory. Recommended Troubleshooting Steps If your device is getting physically hot
, disconnect it immediately to prevent damage to your computer's USB port. If it is safe to proceed, try these software fixes: Correct VID/PID Detection and click the Manually enter the Vendor ID ( ) and Product ID ( or your specific code) into the tool to force recognition. Restart the tool and re-insert the drive. Try "Test Mode" If the drive is not detected, it may need to be put into
by shorting specific pins on the flash chip (a hardware bypass). This is advanced and should only be done if you are comfortable opening the drive. Firmware Update
If the drive is seen as "0 bytes" or "No Media," you may need a version of
specifically tailored to your chip series (e.g., AU6989SN-GT vs. TA). Hardware Inspection
If the device remains "Unknown" and continues to run hot, the controller or memory chip is likely defective and cannot be repaired with software. You can attempt to scan and repair
it using Windows built-in tools first, but these rarely fix low-level controller errors. For identifying the exact chip specs, you can use the ChipGenius
utility to find the precise controller and flash part numbers needed for a manual firmware search.
Based on the keywords provided, you are likely dealing with an Alcor Micro AU698X-series controller (commonly found in USB flash drives) reporting an unknown firmware state (FA00/FA04) or "hot" flash status. This usually happens when a drive is not being recognized by the OS, shows 0 bytes, or requires a firmware flash to revive it.
Here is a comprehensive guide to identifying, diagnosing, and repairing an Alcor Micro controller with these parameters.
Run lsusb and dmesg -w.
If you see ID 058f:fa00 Alcor Micro Corp., try:
sudo modprobe usb-storage
echo "058f fa00" | sudo tee /sys/bus/usb/drivers/usb-storage/new_id
Some older Alcor readers need uas blacklisted.
If you’ve landed on this page, chances are you are staring at a cryptic entry in your Windows Device Manager. You see a yellow exclamation mark next to an "Unknown Device," and upon digging into the properties, you are met with a string of code that looks like it belongs in a sci-fi movie: Alcor Micro Unknown FA00 FW FA04 Hot.
You are not alone. This specific identifier is a common headache for users dealing with USB hubs, card readers, or legacy storage devices. This article will dissect exactly what this error means, why it says "Hot," and—most importantly—how to fix it permanently.
Before starting, ensure you have:
National Water Prediction Service (formerly AHPS) river gauge data. Filter to action stage or higher.
CWA boundaries, radar site status, and NOAA Weather Radio transmitter locations.
USGS earthquake data plotted in near real-time by hour and day.
NHC forecast tracks for tropical storms and hurricanes. Only visible near radar-covered landmasses.
Download and replace your color table settings for a more refined radar analysis experience.
Enhanced reflectivity palette for improved storm structure analysis.
Download .palVelocity color curve tuned for rotation and wind shear detection.
Download .palSRM palette optimized for mesocyclone and tornado vortex signature analysis.
Download .palPlacefileNation is a conceptual method to provide weather data for GR2, GR3, GRLevelX, WSV3, and Supercell Wx applications. PlacefileNation is in no way affiliated or associated with the National Weather Service. No warranties of this system or data quality assurances are implied. There is no guarantee that the placefiles will always be available or that the data displayed will always be up-to-date and/or correct. These placefiles are in continual development and thus are subject to change at any time.