Nvidia MSTFLINT Documentation page 67

# mstflint -d 41:00.0 hw_access enable
-I- The Secure Host was disabled successfully on the device.
And the same as previous, providing the key can be done in interactive shell:
# mstflint -d 41:00.0 hw_access enable
Enter Key : ********
-I- The Secure Host was disabled successfully on the device.
18022018
67