Is the drive or just "Write Protected"?
They require specific execution files and heavily customized configuration ( .ini ) files to handle multi-bank operations. How to Identify Your Controller (Crucial Step) smi mptool sm32x sm34x smi mass production tool best
Extract the downloaded ZIP archive to a folder on your local drive (do not run it from inside a zipped folder). Open the folder and run sm32Xtest.exe (or the equivalent main executable for your specific package). Is the drive or just "Write Protected"
In the world of SM32x/SM34x mass production, the "Flash List" (often a .bin file or an Excel spreadsheet included with the tool) is the single most critical document. It is the bridge between the controller and the thousands of different NAND Flash chips (Samsung, Hynix, Micron, Toshiba) that exist. Open the folder and run sm32Xtest
Click 'Quit' to close the utility, then safely eject and reinsert your USB drive. Check in "My Computer" to confirm the new partitions are present.