HP ZBook 15u G3 Mobile Workstation HP EliteBook 850 G3 Notebook PC HP EliteBook 840 G3 Notebook PC - Maintenance and Service Guide

Smart card reader board
Description Spare part number
Smart card reader board (not available with mobile workstation) 821167-001
Smart card reader board (mobile workstation only) 821188-001
Before removing the card 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 bottom cover (see Bottom cover on page 35).
5. Remove the battery (see Battery on page 40).
6. Remove the following components:
a. Keyboard (see Keyboard on page 50)
b. Hard drive (Hard drive on page 41)
c. Internal base plate (Internal base plate on page 56)
d. NFC module (see NFC module on page 68)
Remove the smart card reader board:
NOTE: Before you remove the smart card reader, make sure nothing (memory card or plastic insert) in
installed.
1. Disconnect the cable from the board (1).
2. Disconnect the cable from the touchpad (2).
Component replacement procedures 69