HP ProBook 4520s Notebook PC and HP ProBook 4720s Notebook PC - Maintenance and Service Guide

7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached, and
disconnect the keyboard cable (2) from the system board.
NOTE: Only disconnect the keyboard cable from the system board when replacing the
keyboard or removing the top cover. It is not recommended that you disconnect the cable unless it
is absolutely necessary.
8. Remove the keyboard.
Reverse this procedure to install the switch cover and keyboard.
54 Chapter 4 Removal and replacement procedures