Usbutil V300 20 Top May 2026

Certain encrypted USB drives lock when a password is lost. While not a brute-force tool, USBUtil v300 20 Top can perform a "mass erase" on the controller level, resetting the security ID (SID) to factory state.

Insert a bricked USB drive, and v300 20 Top scans the low-level descriptor. It identifies the controller manufacturer (e.g., Alcor Micro AU6990, Phison PS2251) – even when Windows shows "0 bytes" or "Device not recognized." usbutil v300 20 top

| Parameter | Value | |--------------------|-------------------------------| | Version | v300.20 | | File size (approx) | 1.2 MB | | Operating System | Windows XP/7/8/10 (32-bit) | | Driver | libusb-win32 / custom .sys | | Target chipset | STi7105, STi7111, Ali M3602 | | Interface | USB 2.0 Device Mode | | Protocol | Bulk transfer, endpoint 0x01/0x82 | Certain encrypted USB drives lock when a password is lost

RPMB stores secure data (Keystore, Widevine keys). USButil V300 20 Top can read RPMB if you have the authentication key (256-bit). Command: This is invaluable for extracting secure keys before

rpmb read rpmb.bin 0 0x40000 --key mykey.bin

This is invaluable for extracting secure keys before motherboard replacement.