Dell Inspiron 14 5408 Service Manual page 5

SupportAssist diagnostics.................................................................................................................................................. 85
Built-in self-test (BIST)...................................................................................................................................................... 85
System board built-in self-test (M-BIST).................................................................................................................. 86
Display panel power rail built-in self-test (L-BIST)................................................................................................... 86
Display panel built-in self-test (LCD-BIST)................................................................................................................ 87
Outcome......................................................................................................................................................................... 87
Recovering the operating system..................................................................................................................................... 88
System diagnostic lights..................................................................................................................................................... 88
Enabling Intel Optane memory...........................................................................................................................................89
Disabling Intel Optane memory..........................................................................................................................................89
Flea power release.............................................................................................................................................................. 90
WiFi power cycle................................................................................................................................................................. 90
6 Getting help and contacting Dell.................................................................................................. 91
Contents 5