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

2. To remove the switch cover, remove the following:
(1) Two screw covers on the rear edge of the computer
(2) Two PM2.5×2.5 screws
(3) Three PM2.0×2.5 broadhead screws located in the battery bay
3. Open the computer as far as possible.
4. Slide the switch cover back (1), and then remove it from the computer (2).
52 Chapter 4 Removal and replacement procedures