Checked diagnose debug config-error-log read for conversion issues.
Click on the dropdown menu at the top of the page and select Firmware Download . Select FortiGate from the product list. Click on the Download tab.
Click next to Upload Firmware if you downloaded the file manually, or select an automated option from the FortiGuard tab. Select the .out file you saved to your computer. fortigate firmware download install
Scripting/automation — for scale
If an upgrade causes catastrophic performance issues or breaks critical business applications, you must be prepared to roll back to your original state. Minor Issues: Restoring Configuration Click on the Download tab
When firmware schemas change, certain legacy commands might fail to convert. Run this command to check if any configuration lines were dropped during the upgrade initialization: diagnose debug config-error-log read Use code with caution.
Downloading and installing FortiGate firmware is straightforward only if you respect the rules: valid support, correct upgrade path, full backup, and careful verification. Skipping these steps frequently leads to firewall downtime or factory resets. By following the structured process above—test, backup, path, verify—you ensure a safe and successful firmware update. Scripting/automation — for scale If an upgrade causes
The Graphical User Interface (GUI) is the easiest method for most administrators. Log into your FortiGate GUI using an administrator account.
Fortinet provides a specific multi-step upgrade sequence known as the . How to Find Your Upgrade Path Go to the Fortinet Support Portal (fortinet.com). Navigate to Support > Firmware Download . Select the Upgrade Path tab.