HP Pavilion dv6-6c40ca Entertainment Notebook PC - Manual (Page 81)

b. Gently press the cover (2) down, applying pressure to both the left and right edges of the
cover, until it snaps into place.
10. Replace the battery.
11. Turn the computer right-side up, and then reconnect external power and external devices.
12. Turn on the computer.
Adding or replacing memory modules 71