Dell Inspiron 16 7620 Service Manual page 4

Updating the BIOS............................................................................................................................................................ 68
Updating the BIOS in Windows................................................................................................................................68
Updating the BIOS using the USB drive in Windows..........................................................................................68
Updating the BIOS from the F12 One-Time boot menu.....................................................................................68
Chapter 5: Troubleshooting......................................................................................................... 70
Handling swollen Lithium-ion batteries........................................................................................................................ 70
Locate the Service Tag or Express Service Code of your Dell computer ..............................................70
System diagnostic lights...................................................................................................................................................71
SupportAssist diagnostics............................................................................................................................................... 72
Built-in self-test (BIST)................................................................................................................................................... 72
Recovering the operating system..................................................................................................................................72
WiFi power cycle................................................................................................................................................................73
Backup media and recovery options............................................................................................................................. 73
Chapter 6: Getting help and contacting Dell................................................................................ 74
4 Contents