Dell G15 5520-4132 Service Manual page 4

Updating the BIOS using the USB drive in Windows..........................................................................................62
Updating the BIOS in Linux and Ubuntu................................................................................................................ 63
Updating the BIOS from the F12 One-Time boot menu.....................................................................................63
Chapter 5: Troubleshooting.........................................................................................................64
Handling swollen Lithium-ion batteries........................................................................................................................ 64
SupportAssist diagnostics............................................................................................................................................... 64
System diagnostic lights..................................................................................................................................................65
Recovering the operating system................................................................................................................................. 66
Backup media and recovery options.............................................................................................................................66
WiFi power cycle............................................................................................................................................................... 66
Drain residual flea power (perform hard reset)......................................................................................................... 66
Chapter 6: Getting help and contacting Dell................................................................................ 68
4 Contents