Updating the BIOS............................................................................................................................................................. 71
Updating the BIOS in Windows.................................................................................................................................71
Updating the BIOS using the USB drive in Windows...........................................................................................71
Updating the BIOS from the F12 One-Time boot menu.....................................................................................72
Chapter 5: Troubleshooting......................................................................................................... 73
Handling swollen Lithium-ion batteries........................................................................................................................ 73
Locate the Service Tag or Express Service Code of your Dell computer ..............................................73
System diagnostic lights.................................................................................................................................................. 74
SupportAssist | On-board Diagnostics......................................................................................................................... 75
Recovering the operating system................................................................................................................................. 75
Backup media and recovery options.............................................................................................................................75
WiFi power cycle............................................................................................................................................................... 75
Drain residual flea power (perform hard reset)......................................................................................................... 76
Chapter 6: Getting help and contacting Dell................................................................................ 77
Contents 5
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