A generic product ID often used by Alcor Micro for mass storage devices or flash drives.
When you encounter 058f:1234 , you can be nearly certain that your device contains an Alcor Micro controller, even if the external branding claims "Generic," "Kingston," "Transcend," "Patriot," or "PQI".
capacity even after a low-level format, the issue is likely hardware-related. Flash memory has a finite number of read/write cycles. Once the memory cells degrade beyond repair, the controller locks the drive into a read-only state to prevent further data loss. In these scenarios, the drive has reached the end of its lifespan and should be replaced. If you want, I can help you:
No. Windows 11 includes the USB mass storage driver. The device will work instantly, as long as the controller is not damaged. If you encounter a driver error, download the latest Alcor driver from Station-Drivers or Windows Update Catalog. usb device id vid 058f pid 1234 full
sudo mkfs.vfat -c /dev/sdX # Replace sdX with your device
The USB hardware identifier and PID 1234 corresponds to a generic Flash Drive manufactured by Alcor Micro Corp. . This specific combination is often found on a wide variety of USB mass storage devices, ranging from small 2GB drives to much larger capacities. Technical Specifications
Standard USB Identifiers - Windows drivers - Microsoft Learn A generic product ID often used by Alcor
If your device with PID 1234 is not recognized on screen, navigate to the tool's folder, open the AlcorMP.ini configuration file, and verify that the VID and PID parameters match 058F and 1234 . Alternatively, utilize the standalone tool to temporarily reset the identifier back to factory standards ( 058F / 6387 ).
Because the device identity has flipped to PID 1234 , you cannot format it using traditional Windows tools like diskpart or standard file explorers. You must rewrite the drive's firmware using an Alcor Mass Production Tool (MPTool). Step 1: Download the Exact MPTool Architecture
Download a newer or more specific variant of the MPTool (such as an eD3-specific build if using SanDisk memory). Flash memory has a finite number of read/write cycles
Understanding what this hardware ID represents, why it appears, and how to use mass production tools (MPTools) will help you successfully flash and revive your bricked flash drive. 🛠️ Anatomy of the Identifier: VID 058F & PID 1234
or failing after minimal use. They are "notorious for failing" and should not be used as a primary backup for critical files.
and restart your PC to let Windows reinstall it automatically. Controller Identification: Use utilities like ChipGenius Flash Drive Information Extractor to confirm the exact Alcor controller model. Low-Level Formatting: