Dell XPS 16 9640 Owners Manual - Page 5

Power button with fingerprint reader...78 Removing the power button with fingerprint reader 78 Installing the power button with fingerprint reader 79 Palm-rest assembly...80 Removing the palm-rest assembly...80 Installing the palm-rest assembly...81 Chapter 6: Software...83 Operating system...83 Drivers and downloads...83 Chapter 7: BIOS Setup...84 Entering BIOS setup program...84 Navigation keys...84 F12 One Time Boot menu...84 System setup options...85 Updating the BIOS...101 Updating the BIOS in Windows...101 Updating the BIOS using the USB drive in Windows 101 Updating the BIOS from the F12 One Time Boot menu 102 System and setup password...102 Assigning a System Setup password...103 Deleting or changing an existing system setup password 103 Clearing BIOS (System Setup) and System passwords 104 Chapter 8: Troubleshooting...105 Handling swollen rechargeable Li-ion batteries...105 Locate the Service Tag or Express Service Code of your Dell computer 105 Dell SupportAssist Pre-boot System Performance Check diagnostics 106 Running the SupportAssist Pre-Boot System Performance Check 106 Built-in self-test (BIST)...106 M-BIST...106 LCD Power rail test (L-BIST)...107 LCD Built-in Self-Test (BIST)...107 System-diagnostic lights...108 Recovering the operating system...109 Real-Time Clock (RTC Reset)...109 Backup media and recovery options...110 Wi-Fi power cycle...110 Drain residual flea power (perform hard reset)...110 Chapter 9: Getting help and contacting Dell 111 Contents 5