Before downloading any tool, you must identify the NAND ID. Do not rely on the controller name alone. Use USB Flash Info or ChipGenius v4. Look for a string like:
Flash ID: 98 DE 94 93 76 D7 (This example is Toshiba BiCS3 3D TLC).
Write this ID down. MPTOOL configuration files (.SET or .FFW) require exact matching.
If you want, I can:
This is the tricky part. Silicon Motion does not release these tools to the public; they leak via factory support sites.
| Problem | Solution |
|---------|----------|
| Tool sees 0MB / Bad Block > 100% | NAND ID mismatch – correct FlashList.dat or use forced ID via uDiskToolBar |
| Error: "Download ISP Fail" | Wrong ISP version – try ISP from SM3268AB_TC58NC6623 pack |
| Error: "Compare Fail at 0xXXX" | Bad NAND (replace chip) or poor soldering |
| Drive not detected after short | Use USB 2.0 port; remove battery from laptop; try different short point (D-/D+ to VSS) |
| MPTool crashes on Win10 | Run in Windows 7 compatibility + Administrator | tc58nc6623 sss6698ba mptool work
| Parameter | Value |
|-----------|-------|
| Controller | TC58NC6623 = SSS 6698-BA |
| Best tool | SM3268AB_TC58NC6623_MP_v2.5.59_v3 |
| Key file to edit | FlashList.dat |
| ISP type | TSOP48 15nm (Toshiba) |
| Debug switch | /d + ENABLE=1 |
| Success rate (good NAND) | ~85% |
Final recommendation:
Use the SM3268AB_TC58NC6623 repack from usbdev.ru (search for post #71289).
Do not mix with Innostor or Alcor tools – this is strictly a Skymedi family controller. Before downloading any tool, you must identify the NAND ID
Would you like a step‑by‑step illustrated guide or the exact .ini/.dat file modifications?
This is a specific and often frustrating area of USB flash drive recovery, as this controller is known for being locked down, poorly documented, and incompatible with standard tools. This is the tricky part