One time boot menu..........................................................................................................................................................91
BIOS setup options........................................................................................................................................................... 92
Updating the BIOS.......................................................................................................................................................... 103
Updating the BIOS in Windows.............................................................................................................................. 103
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 103
Updating the BIOS using the USB drive in Windows........................................................................................ 103
Updating the BIOS from the F12 One-Time boot menu................................................................................... 104
System and setup password.........................................................................................................................................105
Assigning a system setup password..................................................................................................................... 105
Deleting or changing an existing system setup password............................................................................... 105
Clearing CMOS settings................................................................................................................................................ 106
Clearing BIOS (System Setup) and System passwords.........................................................................................106
Chapter 5: Troubleshooting....................................................................................................... 107
Handling swollen Lithium-ion batteries.......................................................................................................................107
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 107
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 108
Built-in self-test (BIST)..................................................................................................................................................108
M-BIST......................................................................................................................................................................... 108
LCD Power rail test (L-BIST)................................................................................................................................. 109
LCD Built-in Self Test (BIST)................................................................................................................................. 109
System-diagnostic lights................................................................................................................................................109
Recovering the operating system................................................................................................................................. 111
Real-Time Clock (RTC Reset)........................................................................................................................................111
Backup media and recovery options............................................................................................................................ 112
WiFi power cycle...............................................................................................................................................................112
Drain residual flea power (perform hard reset)........................................................................................................ 112
Chapter 6: Getting help and contacting Dell............................................................................... 113
Contents
5
To Next Page
