4.Remove the battery (see Battery on page 42).
5.Remove the following components:
a.Bottom door (see Bottom door on page 49).
b.Hard drive (see Hard drive on page 54)
c.Optical drive (see Optical drive on page 50)
d.WLAN module (see WLAN module on page 60)
e.WWAN module (see WWAN module on page 58)
f.Fan (see Fan on page 64)
g.Heat sink (see Heat sink on page 65)
h.Keyboard (see Keyboard on page 68)
Remove the bottom cover:
1.Position the computer
2.Remove the following covers and screws that secure the bottom cover to the computer:
●(1): 4 rubber screw covers
●(2): 8 Torx PM2.5×8.0 screws
3.Remove the following screws that secure the bottom cover to the computer:
●(1): 1 Phillips PM2.0×3.0 screw from the hard drive bay
●(2): 2 Phillips PM2.0×3.0 screws from the battery bay
●(3): 1 Phillips broadhead PM2.0×4.0 screw from the battery bay
●(4): 2 Phillips PM2.5×4.5 screws from the optical drive bay
