Dell Latitude 5421 - Default Chapter; Table of Contents

Chapter 1: Working on your computer............................................................................................7
Safety instructions.............................................................................................................................................................. 7
Working inside your computer.................................................................................................................................... 7
Entering Service Mode.................................................................................................................................................9
Exiting Service Mode.................................................................................................................................................. 10
After working inside your computer........................................................................................................................ 10
Chapter 2: Removing and installing components...........................................................................11
Recommended tools...........................................................................................................................................................11
Screw list..............................................................................................................................................................................12
Major components of your system................................................................................................................................ 14
SIM card tray...................................................................................................................................................................... 15
Removing the SIM card tray..................................................................................................................................... 15
Installing the SIM card ............................................................................................................................................... 16
Micro Secure Digital (SD) Card...................................................................................................................................... 17
Removing the microSD card...................................................................................................................................... 17
Installing the microSD card........................................................................................................................................ 18
Base cover........................................................................................................................................................................... 19
Removing the base cover...........................................................................................................................................19
Installing the base cover............................................................................................................................................ 20
Wireless card...................................................................................................................................................................... 22
Removing the wireless card...................................................................................................................................... 22
Installing the wireless card........................................................................................................................................ 23
Wireless Wide Area Network (WWAN) Card............................................................................................................. 25
Removing the WWAN card....................................................................................................................................... 25
Installing the WWAN card......................................................................................................................................... 26
Solid-state drives...............................................................................................................................................................27
Removing the 2230 solid-state drive .................................................................................................................... 27
Installing the 2230 solid-state drive........................................................................................................................28
Removing the 2280 solid-state drive..................................................................................................................... 30
Installing the 2280 solid-state drive........................................................................................................................30
Memory................................................................................................................................................................................32
Removing the memory module.................................................................................................................................32
Installing the memory module...................................................................................................................................32
Battery................................................................................................................................................................................. 33
Lithium-ion battery precautions...............................................................................................................................33
Removing the battery.................................................................................................................................................34
Installing the battery...................................................................................................................................................35
Battery cable...................................................................................................................................................................... 36
Removing the battery cable......................................................................................................................................36
Installing the battery cable........................................................................................................................................36
Assembly inner frame....................................................................................................................................................... 37
Removing the assembly inner frame....................................................................................................................... 37
Installing the assembly inner frame.........................................................................................................................39
Contents
Contents 3