Dell G15 5521 Special Edition - Page 4

Updating the BIOS............................................................................................................................................................ 66
Updating the BIOS in Windows................................................................................................................................66
Updating the BIOS using the USB drive in Windows..........................................................................................66
Updating the BIOS in Linux and Ubuntu................................................................................................................ 67
Updating the BIOS from the F12 One-Time boot menu.....................................................................................67
Chapter 5: Troubleshooting.........................................................................................................68
Handling swollen Lithium-ion batteries........................................................................................................................ 68
SupportAssist diagnostics...............................................................................................................................................68
System diagnostic lights..................................................................................................................................................69
Recovering the operating system................................................................................................................................. 70
Backup media and recovery options.............................................................................................................................70
WiFi power cycle............................................................................................................................................................... 70
Drain residual flea power (perform hard reset)......................................................................................................... 70
Chapter 6: Getting help and contacting Dell................................................................................ 72
4 Contents