Fingerprint reader board
Description Spare part number
Fingerprint reader board (includes cable) 642764-001
Before removing the fingerprint reader board, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 41).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 48).
b. Hard drive (see
Hard drive on page 53)
c. Optical drive (see
Optical drive on page 49)
d. WLAN module (see
WLAN module on page 59)
e. WWAN module (see
WWAN module on page 57)
f. Fan (see
Fan on page 63)
g. Heat sink (see
Heat sink on page 64)
h. Keyboard (see
Keyboard on page 67)
i. Bottom cover (see
Bottom cover from top cover on page 70)
Remove the fingerprint reader board:
1. Position the computer upside-down, with the front toward you.
Component replacement procedures 75
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