Downloading firmware
Firmware images for all FortiGate units is available on the Fortinet Customer Support website. You must register your FortiGate unit to access firmware images. Register the FortiGate unit by
visiting http://support.fortinet.com and select Product Registration.
To download firmware
1. Log into the site using your user name and password.
2. Go to Firmware Images > FortiGate.
3. Select the most recent FortiOS version.
4. Locate the firmware for your FortiGate unit, right-click the link and select the Download option for your browser.