HP ProBook 450 G4 Notebook PC and HP ProBook 455 G4 Notebook PC - Maintenance and Service Guide
4. Disconnect the keyboard cable by lifting the connector latch (1), and then disconnect the keyboard cable
from the system board (2).
5. If applicable, disconnect the backlight cable by lifting the connector latch (3), and then disconnect the
cable from the system board (4).
6. Remove the keyboard (5).
Reverse this procedure to install the keyboard.
Component replacement procedures 47