Never tried to upgrade the various UTM databases on a fgt with an exp. license, but to manually upload updates is done via System->FortiGuard. In 6.0.x. most items are accessible via right-clicking on a dashboard widget. In this case, right-click on the Licenses widget and choose View details in System > FortiGuard.
Thanks for the screenshot. I see the difference. Without a license it is not possible anymore to upgrade manually. With my own box here with the same firmware, but with subscription, the upload is possible. What a shame.
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