Dell Latitude 3520 - Page 6

Chapter 5: Troubleshooting........................................................................................................ 118
Handling swollen Lithium-ion batteries....................................................................................................................... 118
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................118
Running the SupportAssist Pre-Boot System Performance Check............................................................... 119
Built-in self-test (BIST).................................................................................................................................................. 119
M-BIST.......................................................................................................................................................................... 119
LCD Power rail test (L-BIST)................................................................................................................................. 120
LCD Built-in Self Test (BIST)................................................................................................................................. 120
System-diagnostic lights................................................................................................................................................120
Recovering the operating system................................................................................................................................122
Real-Time Clock (RTC Reset)...................................................................................................................................... 122
Backup media and recovery options........................................................................................................................... 122
WiFi power cycle..............................................................................................................................................................123
Drain residual flea power (perform hard reset)........................................................................................................123
Chapter 6: Getting help and contacting Dell...............................................................................124
6 Contents