Diagnostic error messages................................................................................................................................................. 78
System error messages.......................................................................................................................................................81
Recovering the operating system...................................................................................................................................... 81
Flashing BIOS (USB key)....................................................................................................................................................82
Flashing the BIOS................................................................................................................................................................ 82
WiFi power cycle................................................................................................................................................................. 82
Flea power release...............................................................................................................................................................83
Enabling Intel Optane memory...........................................................................................................................................83
Disabling Intel Optane memory..........................................................................................................................................83
6 Getting help and contacting Dell..................................................................................................85
Contents 5