SN-S-Series-220 and SN-S-Series-320

Enabling Secure Boot in the SNS firewall’s UEFI

  1. Connect the computer to the SNS firewall using the USB-A to USB-C cable.

  2. Open the terminal emulator and enter the serial port and baud rate (115200).

  3. Restart the SNS firewall and immediately press [Del] several times to stop the SNS firewall startup sequence.

  4. Go to the Security tab by using the arrow keys.

  5. Select Secure Boot and press [Enter].

  1. Change the status of the Secure Boot parameter to Enabled.

  2. Change the status of the Secure Boot Mode parameter to Standard.

  1. Press [Esc] and go to the Save & Exit tab.

  2. Select Save Changes and Reset and press [Enter].

  3. In the Save & Reset window, select Yes then press [Enter].

Disabling Secure Boot in the SNS firewall’s UEFI

  1. Connect the computer to the SNS firewall using the USB-A to USB-C cable.

  2. Open the terminal emulator and enter the serial port and baud rate (115200).

  3. Restart the SNS firewall and immediately press [Del] several times to stop the SNS firewall startup sequence.

  4. Go to the Security tab by using the arrow keys.

  5. Select Secure Boot and press [Enter].

  1. Change the status of the Secure Boot parameter to Disabled.

  2. Change the status of the Secure Boot Mode parameter to Custom.

  1. Press [Esc] and go to the Save & Exit tab.

  2. Select Save Changes and Reset and press [Enter].

  3. In the Save & Reset window, select Yes then press [Enter].