Removing the display assembly............................................................................................................................... 34
Installing the display assembly..................................................................................................................................37
Removing the I/O board............................................................................................................................................40
Installing the IO board................................................................................................................................................. 41
Removing the heat sink..............................................................................................................................................43
Installing the heat sink................................................................................................................................................44
Removing the system board..................................................................................................................................... 46
Installing the system board....................................................................................................................................... 47
Removing the palm-rest and keyboard assembly................................................................................................ 49
Installing the palm-rest and keyboard assembly.................................................................................................. 50
Entering BIOS setup program........................................................................................................................................ 53
Navigation keys..................................................................................................................................................................53
Boot Sequence...................................................................................................................................................................54
System setup options.......................................................................................................................................................54
Updating the BIOS in Windows .................................................................................................................................... 58
Flashing the BIOS from the F12 One-Time boot menu............................................................................................ 60
System and setup password...........................................................................................................................................63
Assigning a system setup password....................................................................................................................... 63
Deleting or changing an existing system setup password.................................................................................64
Clearing CMOS settings............................................................................................................................................ 64
Clearing BIOS (System Setup) and System passwords.................................................................................... 65
Locate the Service Tag or Express Service Code of your Dell computer
............................................. 66
System-diagnostic lights................................................................................................................................................. 66
SupportAssist | On-board Diagnostics......................................................................................................................... 67
Recovering the operating system................................................................................................................................. 68
Flashing BIOS (USB key).................................................................................................................................................68
Flashing the BIOS..............................................................................................................................................................68
WiFi power cycle............................................................................................................................................................... 69
4
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