The drive is physically damaged, contains irreplaceable data (low-level format erases everything), or you have a different controller.
A: The NAND flash chips may have reached their end of life. Consider replacing the drive. sss6698 bb format tool
If your USB controller is identified as (often found on cheap or no-name drives, as well as some ADATA, PNY, and Kingston models), you are in luck. The SSS6698 BB Format Tool is a specialized low-level formatting utility designed to bring these "bricked" drives back to life. The drive is physically damaged, contains irreplaceable data
The SSS6698 BB Format Tool is a lifesaver for cheap USB drives that suddenly die. It’s not user-friendly, but with this guide, you can restore a seemingly dead drive in under an hour. Q: Will this tool recover my data? A: No. Low-level format permanently erases all data. Use data recovery software before formatting. If your USB controller is identified as (often