Removing the touchpad.............................................................................................................................................42
Installing the touchpad...............................................................................................................................................43
Removing the I/O board............................................................................................................................................45
Installing the I/O board.............................................................................................................................................. 46
Removing the power button..................................................................................................................................... 48
Installing the power button ......................................................................................................................................48
Removing the power button with fingerprint reader .........................................................................................49
Installing the power button with fingerprint reader ...........................................................................................50
Removing the system board......................................................................................................................................51
Installing the system board....................................................................................................................................... 54
Removing the palm-rest and keyboard assembly................................................................................................58
Installing the palm-rest and keyboard assembly.................................................................................................. 59
BIOS overview.................................................................................................................................................................... 61
Entering BIOS setup program......................................................................................................................................... 61
Navigation keys.................................................................................................................................................................. 61
Boot Sequence................................................................................................................................................................... 61
One time boot menu......................................................................................................................................................... 62
System setup options.......................................................................................................................................................62
System and setup password.......................................................................................................................................... 65
Assigning a system setup password....................................................................................................................... 66
Deleting or changing an existing system setup password.................................................................................66
Clearing CMOS settings.............................................................................................................................................67
Clearing BIOS (System Setup) and System passwords.....................................................................................67
Locate the Service Tag or Express Service Code of your Dell computer
..............................................68
System diagnostic lights..................................................................................................................................................68
Built-in self-test (BIST)................................................................................................................................................... 69
Recovering the operating system................................................................................................................................. 70
Flashing the BIOS..............................................................................................................................................................70
Flashing BIOS (USB key).................................................................................................................................................70
Backup media and recovery options..............................................................................................................................71
WiFi power cycle................................................................................................................................................................ 71
Drain residual flea power (perform hard reset).......................................................................................................... 71
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