Use an external hardware programmer (like an ST-Link or J-Link) connected to the board's SWD/JTAG pins to overwrite the entire flash memory with a patched .hex firmware file. Verifying the Patch
When a developer creates a "forced" driver patch ( modprobe.d override or a Windows .inf modification), they might assign VID FFFF as a wildcard. If the patch is applied incorrectly, the system will report this ID as "patched" in logs.
. When this happens, Windows will usually display the drive as an unreadable "USB2DISK" or "USB Mass Storage Device" with a capacity of 0 Bytes. usb device id vid ffff pid 1201 patched
Understanding the "USB Device ID VID FFFF PID 1201 Patched" Error
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). Use an external hardware programmer (like an ST-Link
The fingerprint appears in three distinct scenarios:
: This product ID points natively to generic mass storage profiles, most commonly associated with NAND USB2DISK storage configurations. restore a bricked device
The hardware identifier is a classic signature of a generic or unprogrammed FirstChip controller (typically the FC1178BC or FC2279 chipset) used in low-cost, promotional, or counterfeit USB mass storage devices. When this device is labeled as "patched," it means the drive's firmware has been flashed or modified using a Mass Production Tool (MPTool) to override corrupt hardware blocks, restore a bricked device, or lock the storage to its true physical capacity.
ACTION=="add", ATTRidVendor=="ffff", ATTRidProduct=="1201", RUN+="/bin/sh -c 'echo 0x1234 > /sys/%S%p/idVendor'"
Many users find that after "patching" or repairing these drives, the reported capacity drops (e.g., from 64GB to 32GB) because the original firmware was "faked" to show a higher capacity than the actual NAND chip could hold. Basic Troubleshooting (Non-Firmware)
: lsusb inside a Linux VM shows ID ffff:1201 . The mouse/keyboard attached to the VM is unresponsive.