8. Remove the top cover (2).
Reverse this procedure to install the top cover.
Fingerprint reader board
Description Spare part number
Fingerprint reader board (includes bracket and cable) 725239-001
Before removing the power button 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 33) and then remove the following components:
a. Hard drive (see
Hard drive on page 34)
b. Memory module service cover (see
Memory module on page 40)
c. Optical drive (see
Optical drive on page 42)
d. Keyboard (see
Keyboard on page 47)
e. Top cover (see
Top cover on page 50)
Remove the fingerprint reader board:
1. Disconnect the fingerprint reader ribbon cable from the board (1).
2. Remove the Phillips PM2.0×4.0 screw (2) that secures the fingerprint reader bracket to the top
cover.
52 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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