HP EliteBook 840 G4 Notebook PC HP EliteBook 848 G4 Notebook PC Maintenance and Service Guide

Smart card reader board
Description Spare part number
Smart card reader board 914380-001
Smart card reader cable (available in Cable Kit) 914381-001 (Cable Kit)
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 32).
5. Remove the battery (see Battery on page 36).
6. Remove the keyboard (see Keyboard on page 47).
7. Remove the internal base plate (see Internal base plate on page 50
Remove the smart card reader board:
NOTE: Before you remove the smart card reader, make sure nothing (memory card or plastic insert) in
inserted in the reader.
1. Disconnect the main system board cable from the card reader board (1).
2. Disconnect the cable from the top of the NFC board (2).
3. Disconnect the touchpad cable from the side of the card reader board (3).
4. Disconnect the cable from the bottom of the NFC board (4).
Component replacement procedures 59