Before understanding the tool, you must understand the hardware. The SSS6698BB is a USB 2.0 (and sometimes pseudo-USB 3.0) NAND flash controller manufactured by Silicon Motion, Inc. It is commonly found in budget-friendly flash drives from brands like:
If the MP Tool refuses to work, consider these alternatives.
| Risk | Consequence | Mitigation | |------|-------------|-------------| | Wrong tool version | “Device not supported” or hangs | Verify controller revision (BB vs non-BB). | | Power loss during LLF | Bricked NAND (controller FTL corrupted) | Use stable USB port, avoid hubs. | | Firmware mismatch | Drive becomes dead (no enumeration) | Extract original ISP from working drive via SMI MPTool first. | | Incorrect capacity setting | Read/write errors beyond physical limit | Always use Auto unless experienced. | | Using on SSD or HDD | Tool will see unsupported chip, may hang USB controller | Only connect USB flash drives. | sss6698bb format tool
PASS and capacity.Typical runtime: 2–15 minutes depending on capacity and scan depth.
If you have landed on this page, you are likely staring at a USB flash drive that has suddenly stopped working. Windows asks you to format it, but the format fails. The drive shows 0 bytes of capacity, or it has become write-protected. You have checked the Device Manager, and under "USB Mass Storage Device," the hardware ID reveals something like VID_090C PID_1000 – pointing to a controller made by Silicon Motion, specifically the SSS6698BB. Before understanding the tool, you must understand the
The standard Windows formatting tool will not save you here. You need specialized, low-level maintenance software. This is where the sss6698bb format tool enters the picture.
This article provides a deep dive into what this tool is, why you need it, where to find it, and how to use it to resurrect your dead USB drive. Upon success, status shows PASS and capacity
Warning: The legitimate version of the sss6698bb format tool is often flagged by Windows Defender and antivirus software. Why? Because it interacts directly with hardware drivers (Ring 0 access). It is generally safe if downloaded from reputable flash drive repair communities, but use a Virtual Machine or an old PC if you are paranoid.
Scenario: 16GB USB drive shows “Please insert disk” in Explorer, diskpart sees 0 bytes, ChipGenius confirms SSS6698-BB.
Procedure: