AFAIK, the "PRE-FLIGHT STATUS" changes into "PRE-FLIGHT COMPLETE" when no other input is required.

The names of the CDU pages still requiring input appear close to the lower LSKs ...

Actually, I see that the "PRE-FLIGHT COMPLETE" label appears (and it's likely to be true, since I provided all the necessary input), but the names of some CDU pages are still there.

Does it happen to you too ?