Dell Inspiron 14 (3420, Mid 2012) - Manual (Page 27)

1 2
1 power-button board cable 2 touch-pad cable
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.
Palm-Rest Assembly 27