Open your terminal emulator with the following serial settings: 9600 Data Bits: 8 Parity: None Stop Bits: 1 Flow Control: None
Check the following in order:
If you still have access to the admin password and prefer a cleaner method, using the Command Line Interface is much faster.
If you have admin access, you can run the reset command directly through a console cable or SSH. : Access the CLI via terminal software like : Enter the following command: execute factoryreset Confirmation : The system will ask for confirmation ( and press Enter. The device will reboot automatically. 3. Reset via Web GUI How to reset Fortigate 30D to factory default