Chapter 5: Troubleshooting......................................................................................................... 73
Handling swollen Lithium-ion batteries........................................................................................................................ 73
Locate the Service Tag or Express Service Code of your Dell computer ..............................................73
Backup media and recovery options............................................................................................................................. 74
System-diagnostic lights..................................................................................................................................................74
SupportAssist diagnostics............................................................................................................................................... 75
Built-in self-test (BIST)................................................................................................................................................... 75
M-BIST........................................................................................................................................................................... 75
LCD Built-in Self Test (BIST)................................................................................................................................... 76
Recovering the operating system..................................................................................................................................76
WiFi power cycle............................................................................................................................................................... 76
Drain residual flea power (perform hard reset)..........................................................................................................77
Real Time ClockāRTC reset..........................................................................................................................................77
Chapter 6: Getting help and contacting Dell................................................................................ 79
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