Choose your desired version and click to save it locally, or proceed directly to installation. 3. Step-by-Step FortiGate Firmware Installation
If you are managing a standalone unit or a
Official firmware must be sourced directly from the Fortinet Support Portal. Log in to the Fortinet Support Portal with your credentials. Navigate to Support > Downloads > Firmware Images under the product list. fortigate firmware download install
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.
Choose to encrypt the backup file if you want to preserve sensitive data like local passwords and VPN pre-shared keys. Phase 2: How to Download FortiGate Firmware Choose your desired version and click to save
: Use the search bar to find your specific model (e.g., "100F"). Look for the .out file and click HTTPS to download it to your local machine. Step 2: Installing the Firmware (GUI Method)
If your FortiGate has direct, unrestricted internet access, it can fetch available versions directly from FortiGuard servers. Go to > Firmware & Registration . Look at the FortiOS Version section. Browse the available updates under the Latest Releases tab. Log in to the Fortinet Support Portal with your credentials
Follow the exact sequence of intermediate versions generated by the tool. 2. Verify Your Support Contract
This is the step most engineers skip—and regret. Before you download anything, visit the Fortinet Document Library and find the for the target firmware version.