Fingerprint reader board
Description Spare part number
Fingerprint reader board 845890-001
Before removing the ngerprint reader board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst 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 26).
5. Remove the optical drive (see Optical drive on page 27), if installed.
6. Remove the bottom cover (see Bottom cover on page 34).
To remove the ngerprint reader board:
1. Remove the Phillips PM2.0×3.0 screw (1) that secures the ngerprint reader board to the computer.
2. Lift the bracket from atop the ngerprint reader board (2).
3. The ngerprint reader board is secured to the computer with adhesive. Lift the board up and out of the
computer (3).
Reverse this procedure to install the ngerprint reader board.
Component replacement procedures 47
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