LCD Power rail test (L-BIST).................................................................................................................................. 121
LCD Built-in Self Test (BIST).................................................................................................................................. 121
Diagnostic LED................................................................................................................................................................. 122
Recovering the operating system................................................................................................................................122
Real-Time Clock (RTC Reset)...................................................................................................................................... 123
Battery status LED.......................................................................................................................................................... 123
Backup media and recovery options........................................................................................................................... 123
WiFi power cycle..............................................................................................................................................................123
Drain residual flea power (perform hard reset)........................................................................................................124
Chapter 6: Getting help............................................................................................................. 125
Contacting Dell.................................................................................................................................................................125
6 Contents