as the product and browse to the specific version folder (e.g., v7.00). Identify the correct file for your hardware model. Download the image to your local management PC. Installing the Firmware (GUI Method)
The official source for FortiGate firmware is the Fortinet Support Portal . fortigate firmware download install
as the product and browse the folders for your desired version (e.g., v7.0 or v7.4). Download the Image : Locate the as the product and browse to the specific version folder (e
Do not simply download the latest version. You must use the Fortinet Upgrade Path Tool to see if you need "interim" versions. Moving from a very old version (e.g., 6.4) to a new one (e.g., 7.4) often requires installing 2–3 middle versions first to convert the configuration file correctly. 6.4) to a new one (e.g.