Samfirmware [portable] -

: Removing the Factory Reset Protection (FRP) lock with one click.

SamFw serves as a comprehensive database where users can find official stock firmware for Samsung Galaxy devices. It is commonly used by enthusiasts and technicians for: samfirmware

Turn off your device. Press and hold Volume Down + Volume Up and connect the USB cable to the PC. : Removing the Factory Reset Protection (FRP) lock

It seems you’re asking about the content found on (likely the website SamFirmware or SamMobile ’s firmware section). samfirmware

Flashing a specific Android version manually.