Dell D15U - Page 5

Installing the antenna module (white cable)......................................................................................................... 73
Removing SMA antenna assembly.......................................................................................................................... 74
Installing SMA antenna assembly.............................................................................................................................76
Chapter 7: Software.................................................................................................................... 79
Operating system.............................................................................................................................................................. 79
Drivers and downloads..................................................................................................................................................... 79
Chapter 8: BIOS setup.................................................................................................................80
Entering BIOS setup program........................................................................................................................................ 80
Navigation keys..................................................................................................................................................................80
One Time Boot menu........................................................................................................................................................80
System setup options....................................................................................................................................................... 81
Updating the BIOS............................................................................................................................................................ 90
Updating the BIOS in Windows................................................................................................................................90
Updating the BIOS in Linux and Ubuntu.................................................................................................................91
Updating the BIOS using the USB drive in Windows.......................................................................................... 91
Updating the BIOS from the F12 One-Time boot menu..................................................................................... 91
System and setup password...........................................................................................................................................92
Assigning a system setup password....................................................................................................................... 92
Deleting or changing an existing system setup password.................................................................................93
Clearing BIOS (System Setup) and System passwords.......................................................................................... 93
Chapter 9: Troubleshooting......................................................................................................... 94
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................94
Running the SupportAssist Pre-Boot System Performance Check................................................................94
Power-Supply Unit Built-in Self-Test ..........................................................................................................................94
System-diagnostic lights................................................................................................................................................. 95
Recovering the operating system................................................................................................................................. 96
Real Time Clock—RTC reset......................................................................................................................................... 96
Backup media and recovery options.............................................................................................................................97
Wi-Fi power cycle..............................................................................................................................................................97
Chapter 10: Getting help and contacting Dell...............................................................................98
Contents
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