If you can still log into the FortiGate 30D’s web GUI (HTTPS on port 443), use this method for convenience. However, this is a "full" reset—it keeps the firmware image but wipes the config.

: Keep holding the button for 10 to 15 seconds until the status LEDs begin to flash or cycle. Release the button. Wait : The unit will reboot with default factory settings. Method 3: TFTP Firmware Format (The Full Bare-Metal Wipe)

The correct FortiOS firmware image ( .out file) downloaded from the Fortinet Support Portal.

Understanding these techniques transforms a seemingly fragile security appliance into a device that can always be restored to a known, clean state—whether you're repurposing old hardware for a home lab, troubleshooting tricky configurations, or simply practicing your Fortinet administration skills.

execute factoryreset

If you still have administrative access, download the current configuration file ( .conf ). Navigate to System > Dashboard > Status in the GUI, find the System Information widget, and select Backup .

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