It sounds like you’re looking for a low-level formatting or repair tool for a Silicon Power V3700 USB drive that uses the Phison PS2251-ZIPL controller.
Function: Low-level formatting, write-protection removal, and capacity restoration. OS Compatibility: Windows XP, 7, 10, and 11. How to Use the Tool for PS2251-07 Recovery formatter silicon power v3700 ps2251zipl
Status: Pass (green).The Connection: The drive was plugged directly into the computer's port. If one port didn't recognize the drive's plea for help, another was tried. It sounds like you’re looking for a low-level
Hardware Check: If the formatter fails, the drive may have reached its "end of life" (the memory chips themselves have worn out), and it might be time for a new hero like the SP Blaze series. Select the drive in MPALL (one entry per physical USB port)
For further technical support or to find specific firmware binaries (like BN07*.BIN), the USBDev.ru Phison Archive is the primary resource for community-tested files. Formatter Silicon Power v.3.7.0.0 (PS2251) - FlashBoot.ru
Here’s the part most guides omit: If Windows completely ignores the drive (no LED, no sound), you must enter ROM mode.