Search the database using your specific (e.g., Phison PS2251-68 ) and matching VID/PID .

Once you know the and Controller Part Number , you must locate the factory flashing software designated for that specific chip. These factory utilities are called Mass Production Tools (MPTools) or Production Tools.

. By providing the specific "VID" (Vendor ID) and "PID" (Product ID), it allows users to search for the exact Mass Production Tool (MPTool)

: Shows the Vendor ID (VID) and Product ID (PID). For example, VID = 8564, PID = 1000 .

The "fixed" iterations of v4.21 were developed to address several critical issues found in earlier builds: Database Accuracy:

Displays the Vendor ID (VID) and Product ID (PID).

When a USB drive fails, the data is rarely gone instantly; the issue is usually with the controller firmware. is an indispensable diagnostic tool that bridges the gap between a broken device and its specific repair utility. By providing accurate, updated information on modern USB controllers, it remains the best choice for attempting to rescue your data and, more importantly, saving your flash drives from the trash bin.

Displays precise VID (Vendor ID) and PID (Product ID) sequences.

ChipGenius v4.21 Fixed remains an indispensable tool for low-level USB diagnostics. By providing accurate controller models and hardware IDs, it allows users to locate the exact factory tools needed to revive seemingly dead hardware, saving functional electronic devices from landfills.

On many modern versions of Windows (specifically Windows 10 and Windows 11), older versions of ChipGenius (and even some v4.21 builds) fail to detect any USB devices. They simply show a blank list.

: Identifies the physical NAND memory chips inside the casing (e.g., Samsung, Toshiba, SanDisk, or SK Hynix).

Chipgenius V421 Fixed [work] -