Tc58nc6623 Sss6698ba Mptool Fixed May 2026

The generic MPTOOL versions (e.g., v2.5.x) do not support the TC58NC6623 or have broken settings for the SSS6698BA. A "fixed" version refers to a community-modified .ini configuration file or a patched executable that:

Keyword focus: When you search for tc58nc6623 sss6698ba mptool fixed, you are looking for version SMI MPTOOL v2.5.xx v7 or SMIMPTOOL v2.5.63 with a custom 6698BA_TC58NC6623.ini file. tc58nc6623 sss6698ba mptool fixed

You must verify the exact Controller Vendor and Part Number before downloading software. The tool is specific to the controller, not the brand of the USB (like SanDisk or Kingston). Backup current firmware using SM32x_ISP_BACKUP

If you are reading this, your USB flash drive is likely showing up as "Generic Flash Disk" with 0 bytes, or Windows is asking you to "Insert a disk" when it is already plugged in. This is a common firmware corruption issue for drives using the TC58NC6623 (Toshiba/Kioxia) controller, often identified by tools as the SSS6698BA. The generic MPTOOL versions (e

Here is the step-by-step guide to fixing it using the SSS MPTool.

After applying this procedure on 12 different drives (brands: PNY, Kingston DataTraveler Exodia, no-name Chinese drives) with controller ID SSS6698-BA and NAND marking TC58NC6623:

Windows DiskPart clean & format completed without errors. No re-occurrence of 8MB issue after 30 days of testing.