After the reset, immediately upgrade to the latest available firmware for the 30D (v6.0.16 build 2384) from Fortinet’s legacy support archive to patch known vulnerabilities.
Connect to the FortiGate CLI.
: Unplug the power cable from the device and plug it back in. Locate Button : Find the small pinhole labeled on the front or back of the unit. Hold for 60 Seconds : Within the first 60 seconds fortigate 30d factory reset full