Choose FortiGate , select the Download tab, and navigate to the directory for the desired FortiOS version.
Connect to your FortiGate via CLI or GUI:
Installing new firmware replaces your current antivirus and attack definitions, along with the definitions included with the firmware release. fortigate firmware download install
This method is more robust if you are performing a over a slow WAN link.
Use this method only if your FortiGate will not boot and you cannot access the web GUI or CLI normally. It requires physical console access using a console cable. Choose FortiGate , select the Download tab, and
Or click "Install" if you have already backed up your configuration.
FortiOS upgrades are rarely a single-step process if you are skipping major versions. Skipping steps can corrupt your configuration file. Log into the . Navigate to Support > Upgrade Path . Select your specific FortiGate hardware model. Use this method only if your FortiGate will
Browse the directory structure by version: v7.00 > 7.4 > 7.4.x (or your desired version branch).
