Removing the display hinges.................................................................................................................................... 92
Installing the display hinges.......................................................................................................................................93
Removing the display back cover............................................................................................................................95
Installing the display back cover.............................................................................................................................. 96
Removing the dummy SIM-card slot filler............................................................................................................. 97
Installing the dummy SIM-card slot filler............................................................................................................... 98
Removing the palm-rest assembly........................................................................................................................ 100
Installing the palm-rest assembly........................................................................................................................... 101
BIOS overview..................................................................................................................................................................105
Entering BIOS setup program.......................................................................................................................................105
Navigation keys................................................................................................................................................................105
One time boot menu....................................................................................................................................................... 106
System setup options..................................................................................................................................................... 106
Updating the BIOS........................................................................................................................................................... 116
Updating the BIOS in Windows............................................................................................................................... 116
Updating the BIOS in Linux and Ubuntu............................................................................................................... 117
Updating the BIOS using the USB drive in Windows......................................................................................... 117
Updating the BIOS from the F12 One-Time boot menu.................................................................................... 117
Assigning a system setup password...................................................................................................................... 118
Deleting or changing an existing system setup password................................................................................ 119
Clearing CMOS settings................................................................................................................................................. 119
Clearing BIOS (System Setup) and System passwords.........................................................................................120
Handling swollen Lithium-ion batteries....................................................................................................................... 121
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 122
M-BIST......................................................................................................................................................................... 122
LCD Power rail test (L-BIST)..................................................................................................................................123
LCD Built-in Self Test (BIST)..................................................................................................................................123
System diagnostic lights................................................................................................................................................ 124
Recovering the operating system................................................................................................................................125
Real-Time Clock (RTC Reset)...................................................................................................................................... 125
Backup media and recovery options........................................................................................................................... 125
WiFi power cycle..............................................................................................................................................................126
Drain residual flea power (perform hard reset)........................................................................................................126
Contents
5
Содержание Inspiron 5421
Страница 6: ...Chapter 6 Getting help 127 Contacting Dell 127 6 Contents ...
Страница 14: ...Major components of your system 1 Base cover 14 Removing and installing components ...
Страница 21: ...Removing and installing components 21 ...
Страница 70: ...70 Removing and installing components ...
Страница 72: ...72 Removing and installing components ...
Страница 73: ...Removing and installing components 73 ...
Страница 78: ...78 Removing and installing components ...
Страница 79: ...Removing and installing components 79 ...
Страница 82: ...82 Removing and installing components ...
Страница 83: ...Removing and installing components 83 ...
Страница 103: ...20 Follow the procedure in After working inside your computer Removing and installing components 103 ...