Service Manual

Locate the Service Tag or Express Service Code of your Dell computer ..............................................80
SupportAssist diagnostics...............................................................................................................................................80
Built-in self-test (BIST)................................................................................................................................................... 80
System board built-in self-test (M-BIST).............................................................................................................. 81
Display panel power rail built-in self-test (L-BIST)..............................................................................................81
Display panel built-in self-test (LCD-BIST)...........................................................................................................82
Outcome........................................................................................................................................................................ 82
System diagnostic lights.................................................................................................................................................. 83
Flashing BIOS (USB key).................................................................................................................................................84
Recovering the operating system................................................................................................................................. 84
Flashing the BIOS..............................................................................................................................................................84
Backup media and recovery options.............................................................................................................................85
WiFi power cycle............................................................................................................................................................... 85
Flea power release............................................................................................................................................................ 85
Chapter 6: Getting help and contacting Dell................................................................................ 86
Contents 5