The way to flash the firmware:

1. under the UEFI
   Enter the UEFI folder and execute one of the following flashing scripts:
   flashIT.nsh - only flash the first SAS3216 controller
   flashAllIT.nsh - flash all SAS3216 controllers


2. under the Linux
   Enter the Linux folder and execute the following command:
   chmod +x sas3flash
   note: The command requires administrator privileges.

