Copy the and search for its corresponding MPTool (Mass Production Tool). Download the correct MPTool version, load the proper firmware, and re-flash the drive to restore it to factory settings. Spotting Counterfeit Drives
: Added specific support for newer Alcor chips (AU6989SN-GTD, AU6989SN-GTE) and improved identification for Chipsbank CBM2099/CBM2199 series.
The 4.21 series introduced several technical improvements over older versions:
Download and launch the portable executable file. Insert the faulty USB drive into a direct motherboard port rather than an external hub. Select your targeted device from the upper menu panel of the interface. ChipGenius v4.21.0701 (2021-07-01) by hit00 - USBDev.ru chipgenius v421 top
If you're interested in unlocking the full potential of your computer's hardware, download ChipGenius v4.2.1 Top today. With its powerful features and user-friendly interface, you'll be able to:
April 21, 2026 Category: USB Forensics / Hardware Tools Estimated reading time: 6 minutes
Even if the controller spoofs the capacity (via a malicious firmware setting), it cannot change the physical chip model. v4.21 Top will read the exact Model Number of the NAND flash (e.g., Hynix H27UBG8T2B ). You then Google that model: Copy the and search for its corresponding MPTool
First, it helps fix broken flash drives. If a drive stops working, you often need a specific "mass production tool" to reset it. To find that repair tool, you must know the exact name of the controller chip. This software tells you that name in just one click.
The "top" moniker for stems from its status as a highly refined and well-supported version, capturing the interest of tech enthusiasts, repair professionals, and general users alike. While the official website lists v4.19.0319 as a later build, v4.21 (specifically build 4.21.0701) is widely discussed in hardware forums for its reliable performance and key enhancements. Here’s why this version is considered a standout:
is widely regarded as the "gold standard" lightweight utility for identifying the internal hardware components of USB flash drives, MP3 players, SD cards, and other USB-connected storage media. In a market flooded with counterfeit drives and generic controllers, this tool serves as the first line of defense for technicians and advanced users looking to repair or verify their hardware. ChipGenius v4
Scammers often manipulate standard drive firmware to display false capacities (e.g., rewriting a 16GB drive to show 1TB in Windows Explorer). ChipGenius pulls the of the NAND array. If a drive claims to hold 512GB but the ChipGenius FID decodes to a 32GB single-die chip, it proves the drive is fake. Unbricking & Firmware Flashing
Save the command as a batch file, run it as Admin, and you will never again be fooled by a fake 2TB drive.
Read the bottom box to see the controller vendor and chip part number. Important Safety Tips
: Finding the correct "Mass Production Tool" (MPTool) to re-flash firmware on a broken USB drive.