Dell P138G Service Manual page 61

The following images indicate the location of the power button with optional fingerprint reader and provide a visual
representation of the removal procedure.
Steps
1. Align and place the power button with optional fingerprint reader and cable on the palm-rest assembly.
2. Replace the (M2x2) screw to secure the power button with optional fingerprint reader to the palm-rest assembly.
Next steps
1. Install the system board.
2. Install the fan.
3. Install the WWAN card
4. Install the WLAN card.
5. Install the 3-cell battery
6. Install the base cover.
7. Follow the procedure in
(optional).
or 4-cell battery.
after working inside your computer.
Removing and installing components 61