Dell Inspiron 5590 Service Manual page 5

System diagnostic lights..................................................................................................................................................... 77
Recovering the operating system......................................................................................................................................78
Flashing BIOS (USB key)....................................................................................................................................................78
Flashing the BIOS................................................................................................................................................................ 79
Enabling Intel Optane memory...........................................................................................................................................79
Disabling Intel Optane memory.......................................................................................................................................... 79
WiFi power cycle................................................................................................................................................................. 80
Flea power release...............................................................................................................................................................80
6 Getting help and contacting Dell.................................................................................................. 81
Contents 5