Dell Inspiron 14 5445 - Page 6

Assigning a System Setup password.................................................................................................................... 132
Deleting or changing an existing system setup password............................................................................... 132
Clearing BIOS (System Setup) and System passwords.........................................................................................133
Chapter 9: Troubleshooting....................................................................................................... 134
Handling swollen rechargeable Li-ion batteries........................................................................................................134
Locate the Service Tag or Express Service Code of your Dell computer ........................................................ 134
Dell SupportAssist Pre-boot System Performance Check diagnostics..............................................................135
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 135
Built-in self-test (BIST)..................................................................................................................................................135
M-BIST......................................................................................................................................................................... 135
LCD Power rail test (L-BIST)................................................................................................................................. 136
LCD Built-in Self-Test (BIST).................................................................................................................................136
System-diagnostic lights................................................................................................................................................ 137
Recovering the operating system................................................................................................................................138
Real-Time Clock (RTC Reset)...................................................................................................................................... 138
Backup media and recovery options........................................................................................................................... 138
Wi-Fi power cycle............................................................................................................................................................138
Drain residual flea power (perform hard reset)........................................................................................................139
Chapter 10: Getting help and contacting Dell............................................................................. 140
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