You're referring to a specific feature related to the Phison PS2251-09 controller, which has been patched.

Do not use a patched tool if:

Benefits of the Phison PS2251-09 Patched

Step 4: Flash the Firmware

  1. Navigate to the Firmware folder. You need FW_0901.BIN (for 09 controller).
  2. In the patched tool’s settings, link the FW path to that BIN file.
  3. Click "Lock" (or "OK") to save settings.
  4. Back at the main screen, click "Start."

to alter device behavior, such as bypassing security, changing reported capacity, or repurposing the drive as a different USB device. Firmware Architecture

Irreversible Damage: If the firmware flash fails, the device may no longer be recognized by the PC. In some cases, you must manually short "Ready/Busy" pins on the controller to force it into "test mode" to attempt a recovery.

Related search suggestions follow to help you find firmware and community patches.

If you are searching for this because your drive is failing, note that recent reports have blamed early Phison firmware versions for drive corruption and boot issues on Windows 11. It is highly recommended to check for official manufacturer updates from brands like Kingston or PNY before attempting to use a community "patched" version.

The Case of the Poisoned Chip: A Story of the PS2251-09 Patch