Dell Latitude 5520-3473 [3/117] Contents

Chapter 1: Working inside your computer...................................................................................... 7

Before working inside your computer............................................................................................................................. 7

Safety precautions.............................................................................................................................................................. 7

Enter service mode............................................................................................................................................................. 8

Electrostatic discharge—ESD protection....................................................................................................................10

ESD field service kit .......................................................................................................................................................... 11

Transporting sensitive components...............................................................................................................................12

After working inside your computer.............................................................................................................................. 12

Chapter 2: Major components of your computer.......................................................................... 13

Micro Secure Digital (SD) Card..................................................................................................................................... 20

Removing the microSD card..................................................................................................................................... 20

Installing the microSD card........................................................................................................................................ 21

Base cover.......................................................................................................................................................................... 22

Removing the base cover..........................................................................................................................................22

Installing the base cover............................................................................................................................................ 23

WLAN card..........................................................................................................................................................................25

Removing the WLAN card.........................................................................................................................................25

Installing the WLAN card........................................................................................................................................... 26

WWAN card........................................................................................................................................................................ 28

Removing the M.2 2230 solid-state drive holder................................................................................................ 32

Installing the M.2 2230 solid-state drive holder.................................................................................................. 33

Installing the M.2 2230 solid-state drive............................................................................................................... 34

Memory modules............................................................................................................................................................... 34

Removing the memory modules...............................................................................................................................34

Installing the memory modules.................................................................................................................................35

Battery................................................................................................................................................................................. 36

Lithium-ion battery precautions...............................................................................................................................36

Removing the 3-cell battery..................................................................................................................................... 37

Installing the 3-cell battery....................................................................................................................................... 38