: The standard multi-driver manufacturing utility.
Both chips rely on an internal ROM and flashable firmware that initializes the card detection, USB enumeration, and data transfer protocols.
Try a different version of the AlcorMP tool. Older or newer versions might have different compatibility with your specific NAND flash memory.
Ensure no other external storage drives are connected to avoid accidental overwrites. Click the button to begin flashing.
: They feature an embedded RISC 8051 processor core alongside on-chip RAM and ROM. Usb-firmware-tool-alcor-au6366-au6371
The AU6371 is a more advanced, multi-LUN USB 2.0 controller offering better performance and support for:
: Most Alcor tools focus on "Mass Production" (formatting the card to make it work again), which destroys data . This feature focuses on saving data before the fix.
Before attempting any repairs, it is vital to understand the specific hardware you are working with.
Use an interrogation tool like Flash Drive Information Extractor or ChipEasy. : The standard multi-driver manufacturing utility
for the bar to turn green (Pass). Do not unplug the device. 5. Finalize
When a USB flash drive or memory card reader suddenly stops working, shows , displays a 0-byte capacity , or becomes completely write-protected, standard formatting tools like Windows Disk Management will usually fail. In many cases, the physical hardware is perfectly fine; instead, the microcode governing the device has corrupted. To fix this, you need a specialized tool capable of communicating directly with the hardware controller.
are USB 2.0-compliant card reader controllers [1]. They are widely adopted by manufacturers due to their low cost and support for various flash memory formats (SD, MMC, MS, etc.). Typically optimized for SD/MMC card interfaces.
The drive cannot be formatted or modified. RAW File System: The drive format is recognized as RAW. Older or newer versions might have different compatibility
For the determined user, this guide provides a complete roadmap to potentially restoring a seemingly dead device. However, always weigh the time and effort required against the value of the data and the device itself.
Once the process is finished, safely disconnect your USB drive and then reconnect it. Check in Windows File Explorer to see if the drive is now accessible. If it is still not working, you may need to try the "Write Firmware" option or search for a different version of the firmware tool itself.
: Address issues where standard Windows formatting fails due to corruption. Technical Specifications of Supported Controllers The tool supports two main Alcor Micro chips:
The is a specialized software utility designed for the maintenance, repair, and production of USB flash drives and card readers powered by Alcor Micro controllers. These tools, often referred to as "MPTools" (Mass Production Tools), allow users to resolve critical firmware-level issues that standard formatting cannot fix. 1. Hardware Overview: AU6366 & AU6371
: Allows technicians to manually alter the Vendor ID (VID), Product ID (PID), manufacturer strings, and serial numbers.