Hard reboot the device (unplug the power and plug it back in). When the login prompt appears, you have a 30-second window. Use the username: maintainer
If you still have access to the admin password and prefer a cleaner method, using the Command Line Interface is much faster. fortigate 30d factory reset full
LED to start blinking slowly (usually within 30–60 seconds of booting). Hold and Release : Insert a paperclip into the pinhole and hold it for about 15–30 seconds Hard reboot the device (unplug the power and
Once your FortiGate 30D has rebooted, it is essentially a "blank slate." Here is how to get back into it: use execute factoryreset-shutdown .
: To reset and immediately power down the unit, use execute factoryreset-shutdown .