Chapter 1: Working inside your computer...................................................................................... 6
Before working inside your computer.............................................................................................................................6
Entering Service Mode.......................................................................................................................................................6
Safety instructions.............................................................................................................................................................. 6
Electrostatic discharge—ESD protection......................................................................................................................7
ESD field service kit ........................................................................................................................................................... 8
Transporting sensitive components................................................................................................................................ 9
Exiting Service Mode..........................................................................................................................................................9
After working inside your computer................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of Inspiron 14 5420......................................................................................................................... 11
Base cover........................................................................................................................................................................... 13
Removing the base cover...........................................................................................................................................13
Installing the base cover.............................................................................................................................................16
Battery cable....................................................................................................................................................................... 17
Removing the battery cable.......................................................................................................................................17
Installing the battery cable.........................................................................................................................................18
Battery..................................................................................................................................................................................19
Lithium-ion battery precautions............................................................................................................................... 19
Removing the battery.................................................................................................................................................20
Installing the battery...................................................................................................................................................20
Coin-cell battery.................................................................................................................................................................21
Removing the coin-cell battery.................................................................................................................................21
Installing the coin-cell battery.................................................................................................................................. 22
Solid-state drive................................................................................................................................................................ 23
Removing the M.2 2230 solid-state drive............................................................................................................. 23
Installing the M.2 2230 solid-state drive............................................................................................................... 25
Removing the M.2 2280 solid-state drive............................................................................................................. 26
Installing the M.2 2280 solid-state drive............................................................................................................... 27
Memory module................................................................................................................................................................. 29
Removing the memory module.................................................................................................................................29
Installing the memory module...................................................................................................................................30
Wireless card.......................................................................................................................................................................31
Removing the wireless card.......................................................................................................................................31
Installing the wireless card........................................................................................................................................ 32
Power-adapter port.......................................................................................................................................................... 33
Removing the power-adapter port..........................................................................................................................33
Installing the power-adapter port............................................................................................................................34
Display assembly................................................................................................................................................................35
Removing the display assembly............................................................................................................................... 35
Installing the display assembly..................................................................................................................................37
Contents
Contents 3