If FirstChip MPTool does not work, the flash memory might be from a different manufacturer (e.g., Intel, SanDisk). You may need a specific firmware bin file designed for your NAND chip. Warning: Data Recovery

Run lsusb -v -d ffff:1201 (Linux) or check Device Instance Path (Windows). If the bus is reported as "QEMU Virtual USB" or the parent device is a virtual controller, it's safe.

You may have purchased a drive labeled as 64GB, 128GB, or even 1TB. Once data consumption passes a small threshold (like 8GB or 16GB), the drive crashes, corrupts data, and locks out the user. Re-flashing this specific hardware signature frequently unmasks the true, drastically lower memory size of the chip. Diagnostic Procedure: Checking Your Controller