Tc58nc6623 Sss6698-ba Mptool • Top-Rated & Top-Rated

The Ultimate Guide to TC58NC6623 & SSS6698-BA MPTOOL: Unbricking, Formatting, and Low-Level Repair

If Windows detects the drive but shows 0MB, skip this. If the drive is completely unrecognized, you need ROM Mode:

Disassemble the USB drive.
Locate two test points labeled TP or pins 29-30 on the chip.
Short them with the paperclip while plugging into the PC. Release after 2 seconds.
The PC should now install "SMI USB Device" or "USB Mass Storage Device" with a PID of 0x6698.

"Can't find flash ID": The MPTool version is too old for the specific NAND memory on your drive. Try a newer version of the SSS6698 tool.
"Write Protect" or "Failed": The memory chip (TC58NC6623) may be physically damaged (bad blocks). MPTools can sometimes fix bad blocks by marking them as bad in the controller, but if there are too many, the drive is trash.
Computer Freezes: This is a sign of a bad controller or short circuit. Try a different USB port.

Windows 7 or Windows 10 (x64) – Avoid Windows 11; driver signing often conflicts.
USB 2.0 Port – Never use USB 3.0 or hubs. USB 2.0 is more stable for low-level flashing.
Patience – Do not unplug the drive during the process.