Dell XPS 13 7390 2-in-1 Service Manual page 4

Navigation keys....................................................................................................................................................................34
Boot Sequence.................................................................................................................................................................... 35
System setup options......................................................................................................................................................... 35
System and setup password.............................................................................................................................................. 43
Assigning a system setup password............................................................................................................................44
Deleting or changing an existing system setup password........................................................................................44
Clearing CMOS settings............................................................................................................................................... 45
Clearing BIOS (System Setup) and System passwords...........................................................................................45
5 Troubleshooting......................................................................................................................... 46
Enhanced Pre-Boot System Assessment (ePSA) diagnostics......................................................................................46
Running the ePSA diagnostics.....................................................................................................................................46
Recovering the operating system..................................................................................................................................... 46
Flashing BIOS (USB key)....................................................................................................................................................47
Flashing the BIOS................................................................................................................................................................ 47
Backup media and recovery options................................................................................................................................. 47
WiFi power cycle..................................................................................................................................................................47
Flea power release...............................................................................................................................................................48
6 Getting help and contacting Dell..................................................................................................49
4 Contents