Dell Inspiron 24 5420 Owner's Manual page 6

Chapter 9: Troubleshooting........................................................................................................ 115
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................115
Running the SupportAssist Pre-Boot System Performance Check............................................................... 115
System-diagnostic lights................................................................................................................................................ 115
Recovering the operating system.................................................................................................................................117
Backup media and recovery options............................................................................................................................ 117
WiFi power cycle...............................................................................................................................................................118
Chapter 10: Getting help and contacting Dell..............................................................................119
6 Contents