If the device stopped working after a Windows Update, an official driver likely blocked the chip. Bypassing this requires installing an older, "un-patched" driver version that does not check for counterfeit hardware. Open (Right-click Start > Device Manager).
The FFFF:1201 phenomenon serves as a reminder of the fragile nature of flash storage and the ingenuity of communities that develop solutions when manufacturers’ official tools fall short. Whether you successfully recover your drive or finally consign it to the electronics recycling bin, you now understand what that cryptic device ID is telling you.
In the neatly ordered world of the USB Implementers Forum (USB-IF), every vendor receives a unique 16-bit Vendor ID (VID). If you see VID_045E , you know it’s Microsoft. VID_8087 is Intel. These IDs are the digital DNA of your peripherals.
Similarly, this is a default product ID, often associated with NAND flash management chips in a failed state.
Use STMicroelectronics' official tool to connect via USB and force-flash your firmware.
Since the device uses a patched protocol, a "handshake" packet was identified via reverse engineering. The host must send a START command on the Bulk OUT endpoint ( 0x02 ) before data is streamed.
