Formatter Silicon Power V3700 Ps2251zipl -

That means the controller detected too many NAND bad blocks. The ZIPL firmware enters permanent protection to avoid data loss. No formatter will fix a physically dying flash chip. Time to replace the drive.

Try SP Tool Box (from Silicon Power) – some V3700 drives accept it.
Or Phison PreFormat v1.3.0.2 (quick low-level erase). formatter silicon power v3700 ps2251zipl

  • Save config as format.ini.
  • Run MPALL_F1_90B_vxxx.exe → load config → Start.
  • Wait 5–15 minutes (do not unplug).
  • Use SMART monitoring: Periodically check SMART attributes for reallocated sectors, lifetime writes, and controller-reported health.
  • Firmware updates: Apply only vendor-approved updates that address known issues; avoid experimental firmware builds.

    • The target device is a Silicon Power USB flash drive, model variant V3700 (commonly 16GB–128GB capacity).
    The critical identifier is the controller: That means the controller detected too many NAND bad blocks

    Note: SP V3700 is also a model number for an external HDD enclosure, but the ps2251zipl confirms this is a flash drive. Save config as format

    Use ChipGenius (Windows) or Flash Drive Information Extractor (GetInfo). Write down:

    You need the Phison MPTool specifically designed for the PS2251-07 controller.