If your device contains a controller or a Silicon Motion SSS6698-BA controller, conventional formatting tools will fail. You need a factory-level tool: the MPTool (Mass Production Tool) . However, the standard version often rejects these chips. The only solution is a patched MPTool .
By following this guide—identifying your flash ID, disabling driver signature enforcement, applying the debug patch, and tolerating the risk of false-positive virus alerts—you can convert a dead, 0MB drive into a fully functioning storage device.
Introduction: The Nightmare of the "0MB" USB Drive You plug in your USB flash drive. The computer makes the familiar "ding-dong" sound. You open "This PC," and there it is—the drive letter. But your heart sinks. Next to the drive letter, it says "0 bytes free, 0 bytes total." The properties show a RAW file system, or worse, no media. You've just encountered a classic controller firmware crash.
Only use this patched tool if you have absolutely nothing to lose on the drive. It is a hammer, not a scalpel. If you have valuable data, send the drive to a professional recovery service (they will physically desolder the NAND, not run MPTool). But if you just want your 16GB/32GB/64GB stick back for music or documents, the Patched MPTool is your only hope. Last updated: October 2025. Always back up your data before attempting low-level flashes.
