LCD Power rail test (L-BIST)................................................................................................................................. 130
LCD Built-in Self-Test (BIST)................................................................................................................................. 130
System-diagnostic lights.................................................................................................................................................131
Recovering the operating system................................................................................................................................133
Real-Time Clock (RTC Reset)...................................................................................................................................... 133
Backup media and recovery options........................................................................................................................... 133
Wi-Fi power cycle............................................................................................................................................................ 133
Drain residual flea power (perform hard reset)........................................................................................................133
Chapter 10: Getting help and contacting Dell............................................................................. 135
6 Contents