(Sources: airliners.net, YouTube)
How was the 'bump' removed from [the design of] the Airbus P2F?
The A330 Freighter based on the A330-200 features a bump / blister / bulge that raises the nose landing gear to level the cargo deck for easier loading of cargo. A design issue with the passenger A330 is the slanted floor, but it was not a big deal since cargo with feet manages.
The A330/A340's distinctive nose-down pitch - which is greater than intended in the original design and only emerged when production of the aircraft began in the early 1990s - was a problem that Airbus had addressed on the first version of the A350.
The passenger-to-freighter (P2F) conversion program for both the -200 and -300 lacks this bump. What design change was incorporated into the conversion that fixed the floor level?
The latest information I could find is from October 2009 (8 years ago):
Airbus abandoned the 'bump' modification in favor of a special ground jack to level the deck during loading/unloading.
Airbus is proposing a piece of external ground-support equipment which would physically lift the aircraft, producing the same effect as the lowered gear in new-build freighters (flightglobal.com).