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Dell Latitude 5521 - Page 5

Dell Latitude 5521
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Removing the eDP cable........................................................................................................................................... 84
Installing the eDP cable..............................................................................................................................................85
Sensor board.......................................................................................................................................................................87
Removing the sensor board...................................................................................................................................... 87
Installing the sensor board........................................................................................................................................ 87
Display hinges.....................................................................................................................................................................88
Removing the display hinges.................................................................................................................................... 88
Installing the display hinges...................................................................................................................................... 89
Display back cover............................................................................................................................................................. 91
Removing the display back cover.............................................................................................................................91
Installing the display back cover.............................................................................................................................. 92
Palm-rest assembly...........................................................................................................................................................93
Removing the palm-rest assembly.......................................................................................................................... 93
Installing the palm-rest assembly............................................................................................................................ 94
Chapter 3: Drivers and downloads............................................................................................... 96
Downloading the drivers.................................................................................................................................................. 96
Chapter 4: System setup............................................................................................................. 97
BIOS overview....................................................................................................................................................................97
Entering BIOS setup program........................................................................................................................................ 97
Navigation keys..................................................................................................................................................................97
One time boot menu.........................................................................................................................................................98
Boot Sequence...................................................................................................................................................................98
System setup options.......................................................................................................................................................98
Updating the BIOS.......................................................................................................................................................... 108
Updating the BIOS in Windows.............................................................................................................................. 108
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 109
Updating the BIOS using the USB drive in Windows........................................................................................ 109
Updating the BIOS from the F12 One-Time boot menu................................................................................... 109
System and setup password..........................................................................................................................................110
Assigning a system setup password...................................................................................................................... 110
Deleting or changing an existing system setup password.................................................................................111
Clearing BIOS (System Setup) and System passwords.......................................................................................... 111
Chapter 5: Troubleshooting........................................................................................................ 112
Handling swollen Lithium-ion batteries....................................................................................................................... 112
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................113
Running the SupportAssist Pre-Boot System Performance Check............................................................... 113
Built-in self-test (BIST).................................................................................................................................................. 113
M-BIST.......................................................................................................................................................................... 113
LCD Power rail test (L-BIST).................................................................................................................................. 114
LCD Built-in Self Test (BIST).................................................................................................................................. 114
System diagnostic lights................................................................................................................................................. 115
Recovering the operating system.................................................................................................................................116
Real-Time Clock (RTC Reset).......................................................................................................................................116
Backup media and recovery options............................................................................................................................ 116
WiFi power cycle...............................................................................................................................................................117
Drain residual flea power (perform hard reset).........................................................................................................117
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