Why must customers perform a remote firmware upgrade (RFU) after replacing the HP Color
LaserJet Enterprise CM4540 MFP hard drive?

A.
The replacement hard drive ships without firmware, so firmware must be loaded on it after
installation.

B.
The firmware on the device must be upgraded to match the firmware version on the replacement
hard drive.

C.
The USB control panel will not recognize the replacement hard drive until the device firmware is
upgraded.

D.
All replacement hard drives contain product-introduction firmware and must be upgraded during
installation.