Dell Inspiron 7405 2-in-1 Inspiron 7405 2n1 Service Manual - Page 4

Installing the fan...36 I/O board...36 Removing the I/O board...36 Installing the I/O board...37 Power button with fingerprint reader...38 Removing the power-button board...38 Installing the power-button board...39 Display assembly...40 Removing the display assembly...40 Installing the display assembly...43 System board...45 Removing the system board...45 Installing the system board...47 Palm-rest and keyboard assembly...49 Removing the palm-rest and keyboard assembly...49 Installing the palm-rest and keyboard assembly...50 Chapter 3: Drivers and downloads 52 Chapter 4: System setup...53 Entering BIOS setup program...53 Navigation keys...53 Boot Sequence...53 One time boot menu...54 System setup options...54 Clearing CMOS settings...58 Clearing BIOS (System Setup) and System passwords 58 Chapter 5: Troubleshooting...59 SupportAssist diagnostics...59 System diagnostic lights...59 Recovering the operating system...60 Flashing the BIOS...60 Flashing BIOS (USB key)...61 Backup media and recovery options...61 WiFi power cycle...61 Flea power release...61 Chapter 6: Getting help and contacting Dell 63 4 Contents