Use tools that ignore the RAW file system and scan for raw data signatures.
A common scenario is that a flash drive, reported by the system as "AU87101A UFDISK", is no longer recognized properly. One user on AskUbuntu described this as the "complete destruction" of the USB stick. The drive might appear in lsblk as /dev/sda with a size of 29.8GB, but when attempting to create a partition with mkfs.ext4 , the resulting filesystem was only 456.55 MiB. In some cases, the drive might not appear in the file manager at all.
What is au87101a / ufdisk
A multi-byte hex code (e.g., EC 3A 98 BF ) that identifies the exact manufacturer and model of the internal NAND memory chip. Step 2: Source the Matching Production Tool
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Alcor Micro - USBDev.ru au87101a ufdisk
Seeing a cryptic code like or “UFDisk not recognized” is frustrating, but it rarely means your data is gone forever. Start with the simplest fixes (different port, driver reinstall) before moving to advanced tools like ChipGenius.
If you could provide more context or details about where you encountered "au87101a ufdisk," I might be able to help you better:
Run the downloaded mass production utility strictly as an in Windows.
If your USB drive is showing as "Write Protected," "No Media," or has an "Unknown Capacity," these tools are often the solution. 🛠️ Technical Details Use tools that ignore the RAW file system
In this fallback mode, standard tools like Windows Disk Management or macOS Disk Utility will typically display the drive as or report a storage capacity of 0 Bytes . Because the controller has lost its roadmap to the flash memory, it cannot access any of the data storage blocks. The Data Recovery Reality Check
If you are currently attempting to fix a broken drive or configure a custom boot layout, tell me the exact or the Flash ID shown in your diagnostic software. I can help you locate the specific firmware compilation required for your chip. Share public link
Under the tab, select Product Disk for standard performance, or choose Optimized Capacity to safely map out bad memory sectors.
– USB3.0 Interface. – Single channel access. – BCH 72bit/1K ECC. – Embedded Crystal design. – Embedded Regulator. – Supports ONFI/ www.usbdev.ru Alcor Micro - USBDev.ru The drive might appear in lsblk as /dev/sda
Confirm if it lists AU87101 or a related Alcor chip version (e.g., AU6998 , AU87100 ).
If your "AU87101A UFDISK" is showing "No Media," "Write Protected," or 0MB capacity, it often indicates a firmware or controller error.
The drive shows a much smaller capacity than its original size. 3. How to Repair an AU87101A Drive (Using MP Tools)
A: First, try different USB ports and computers. If detected, attempt low-level formatting with disk management tools. For advanced recovery, search for "Alcor MP tool" or "Alcor mass production tool" (use at your own risk). If all fails, the drive is likely physically damaged.
The AU87101A ufdisk controller is a robust solution for USB 3.0 flash drives, offering advanced ECC and flexibility in NAND support. While failures can occur, the use of AlcorMP tools allows for the recovery of drives that appear to be dead, making it a highly repairable, if complex, device.