Remove the power button board:
1. Turn the top cover upside down, with the front toward you.
2. Remove the two Phillips PM2.0×3.0 screws (1) that secure the power button board to the top cover.
3. Remove the power button board (2) and cable.
Reverse this procedure to install the power button board.
Fingerprint reader board
Description Spare part number
Fingerprint reader board (includes cable and double-sided adhesive) 738394-001
Before removing the fingerprint reader board, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see Battery on page 56), and then remove the following components:
a. Service cover (see Service cover on page 57)
b. Hard drive (see Hard drive on page 58)
c. Optical drive (see Optical drive on page 69)
d. Keyboard (see Keyboard on page 72)
e. Base enclosure (see Base enclosure on page 82)
Fingerprint reader board 87
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