7. Remove the touchpad from the computer (5).
Reverse this procedure to install the touchpad.
Fingerprint sensor board
To remove the ngerprint sensor board, use this procedure and illustration.
Table 
5-5  Fingerprint sensor board description and part number
Description Spare part number
Fingerprint sensor board M00438-001
Fingerprint sensor bracket (available in the Bracket Kit) M12524-001
Before removing the ngerprint sensor board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 25).
2. Remove the bottom cover (Bottom cover on page 25).
3. Remove the battery (see Battery on page 26).
Remove the ngerprint sensor board:
1. Disconnect the cable from the ZIF connector on the system board (1).
2. Remove the Phillips M2.0 × 2.0 screw (2) that secures the ngerprint sensor bracket, and then remove 
the bracket (3).
Component replacement procedures 31