Windows says “The disk is write-protected.” You try RegEdit, Diskpart, and third-party tools. Nothing works. The controller has entered a safe mode due to bad blocks.
Download (or GetInfo ). Run the .exe (as Administrator). It will output a string like: VID: 0951 PID: 1666 Manufacturer: Kingston Controller: PS2251-07 (PS2307) phison ps225107ps2307 upd
Selecting the right combination is critical and must be based on your drive's NAND flash chip. Windows says “The disk is write-protected
: Record this value entirely (e.g., AD 3A 14 AB ). This code dictates which specific firmware file is compatible with your NAND memory geometry. Step 2: The Two Essential Firmware Components Download (or GetInfo )
Insert your problematic PS2251-07 flash drive and run ChipGenius. Look for the entry for your USB drive in the list. It will provide information similar to this example: