HP ProBook 640 G2 Notebook PC, HP ProBook 645 G2 Notebook PC, HP ProBook 650 G2 Notebook PC and HP ProBook 655 G2 Notebook PC - Maintenance and Service Guide

3. Remove the cable (3), and then remove the ngerprint reader (4).
Reverse this procedure to install the ngerprint reader.
Smart card reader
NOTE: The smart card reader spare part kit includes the metal shield
Description Spare part number
Smart card reader board (includes metal shield) 840694-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal and
replacement
Before removing the smart card reader, follow these steps:
1. Shut down the computer.
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 following components:
a. Service door (see Service door on page 37).
b. Remove the battery (see Battery on page 38)
c. Hard drive (see Hard drive on page 39).
d. Solid-state drive (see Solid-state drive (select products only) on page 41).
e. WWAN module (see WWAN module (select products only) on page 42).
74 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts