Select and click Browse to find your downloaded .out file.
If the GUI does not show the option to upgrade, you may need to upgrade to an intermediate version first.
Alternatively, check the bottom left corner of the GUI dashboard. fortigate firmware download install
GUI (web interface) — typical for admins
Note the "Firmware Version" (e.g., v7.0.12 build1234). Select and click Browse to find your downloaded
Before downloading any firmware, you must determine the correct upgrade path. Skipping intermediate versions can corrupt your configuration file and cause network downtime.
(v6.0 → v7.2)
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Type y when prompted to confirm the upload and subsequent reboot. Phase 4: High Availability (HA) Cluster Considerations GUI (web interface) — typical for admins Note
Click on your administrator username in the top-right corner. Select > Backup .