Dell I15N-2727BK Owner's Manual page 33

7 Replace the 11 screws that secure the palm-rest assembly to the computer
base.
8 Replace the battery. See "Replacing the Battery" on page 14.
CAUTION:
Before turning on the computer, replace all screws and ensure that no
stray screws remain inside the computer. Failure to do so may result in damage to
the computer.
Palm-Rest Assembly
33