Dell Inspiron 15 (N5040, Mid 2011) - Manual (Page 31)

Palm-Rest Assembly 31
CAUTION: Carefully separate the palm rest from the computer base to avoid
damage to the palm rest.
7 Using a plastic scribe, carefully pry out the palm-rest assembly and then
ease the palm-rest assembly from the computer base
8 Lift the palm-rest assembly off the computer base.
1 power-button board cable 2 touch-pad cable
1 2