HP 4540s C6Z35UT#ABA, 14 C9K59UT#ABA, D8C11UT 14 D8C11UT#ABA manual

7.For 4540s models, remove the following screws that secure the top cover to the computer:

(1)2 Phillips PM2.0×2.5 screws from the optical drive bay

(2)3 Phillips PM2.0×2.0 broadhead screws from the battery bay

8.For 4440s/4441s models, remove the following screws that secure the top cover to the computer:

(1)3 Phillips PM2.0×2.5 screws from the optical drive bay

(2)2 Phillips PM2.0×2.0 screws from the battery bay

72 Chapter 4 Removal and replacement procedures