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Dell Vostro 3478 Vostro 14-3478 Owners Manual - Page 21

Remove the fingerprint reader, Lift the fingerprint reader board from the computer

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4. Remove the fingerprint reader a) Lift the fingerprint reader board from the computer. Disassembly and reassembly 21

Section	Page
Dell Vostro 14–3478 Owner's Manual	3
Working on your computer	6
Safety precautions	6
Electrostatic discharge—ESD protection	6
ESD field service kit	7
Transporting sensitive components	8
Before working inside your computer	8
After working inside your computer	8
Disassembly and reassembly	9
Recommended tools	9
Screw size list	9
Battery	9
Removing the battery	9
Installing the battery	10
Optical drive	10
Removing the optical drive	10
Removing the optical drive bracket	11
Installing the optical drive bracket	12
Installing the optical drive	12
Keyboard lattice and Keyboard	12
Removing the keyboard	12
Installing the keyboard	14
Base cover	14
Removing the base cover	14
Installing the base cover	17
Hard drive	17
Removing the hard drive assembly	17
Removing the hard drive from the hard drive bracket	18
Installing the hard drive into the hard drive bracket	19
Installing the hard drive assembly	20
Fingerprint reader	20
Removing the fingerprint reader	20
Installing the fingerprint reader	22
WLAN card	22
Removing the WLAN card	22
Installing the WLAN card	23
Memory modules	23
Removing the memory module	23
Installing the memory module	24
Coin-cell battery	24
Removing the coin cell battery	24
Installing the coin cell battery	25
Power button board	26
Removing the power button board	26
Installing the power button board	26
Heat sink	27
Removing the heat sink	27
Installing the heat sink	27
System fan	28
Removing the system fan	28
Installing the system fan	28
Speaker	29
Removing the speakers	29
Installing the speakers	29
System board	30
Removing the system board	30
Installing the system board	32
Input-Output board	33
Removing the Input and Output board	33
Installing the Input and Output board	33
Power connector port	34
Removing the power connector	34
Installing the power connector	35
Display assembly	35
Removing the display assembly	35
Installing the display assembly	37
Display bezel	38
Removing the display bezel	38
Installing the display bezel	38
Camera	39
Removing the camera	39
Installing the camera	39
Display panel	40
Removing the display panel	40
Installing the display panel	42
Display hinges	42
Removing the display hinges	42
Installing the display hinges	43
Touchpad	43
Removing the touchpad	43
Installing the touchpad	45
Palm rest	45
Removing the palmrest	45
Installing the palmrest	46
Technology and components	47
HDMI 1.4	47
USB features	47
System specifications	50
Technical specifications	50
Hot key combinations	52
System setup	53
Boot Sequence	53
Navigation keys	53
System setup options	54
Flashing the BIOS from the F12 One-Time boot menu	61
Updating the BIOS in Windows	63
System and setup password	64
Assigning a system setup password	64
Deleting or changing an existing system setup password	64
Software	66
Supported operating systems	66
Downloading Windows drivers	66
Intel chipset drivers	66
Battery drivers	67
Intel HID Event Filter	68
Intel Dynamic Platform and Thermal Framework	68
Disk drivers	69
Realtek PCI-E Memory Card	69
Graphics controller driver	69
Bluetooth drivers	69
Network drivers	70
Realtek Audio	70
Storage drivers	70
Security drivers	71
Troubleshooting	72
Enhanced Pre-Boot System Assessment — ePSA diagnostics	72
Running the ePSA Diagnostics	72
Diagnostic LED	72
Real Time Clock reset	73

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Remove the fingerprint reader

Lift the fingerprint reader board from the computer.

Disassembly and reassembly