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Dell Inspiron 5391 Service Manual - Page 10

Base cover, Removing the base cover

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Component Left display hinge Hinges Display-cable bracket Secured to Display back-cover and antenna assembly Display back-cover and antenna assembly System board Screw type M2.5x3.5 M2.5x2.5 M2.5x3.5 Quantity 2 6 1 Screw image Power-adapter port Palm-rest and keyboard M2x3 1 assembly Power button with Palm-rest and keyboard M1.6x2 1 fingerprint reader bracket assembly Power button with Palm-rest and keyboard M1.6x2 1 fingerprint reader assembly Base cover Removing the base cover Prerequisites 1. Follow the procedure in Before working inside your computer. About this task The following image indicates the location of the base cover and provides a visual representation of the removal procedure. 10 Removing and installing components

Section	Page
Inspiron 5391 Service Manual	3
Safety instructions	6
Before working inside your computer	6
Before you begin	6
Electrostatic discharge—ESD protection	7
ESD field service kit	7
Transporting sensitive components	8
After working inside your computer	8
Removing and installing components	9
Recommended tools	9
Screw list	9
Base cover	10
Removing the base cover	10
Installing the base cover	11
Battery	12
Removing the battery	12
Installing the battery	13
Coin-cell battery	14
Removing the coin-cell battery	14
Installing the coin-cell battery	15
Solid-state drive	16
Removing the M.2 2280 solid-state drive	16
Installing the M.2 2280 solid-state drive	17
Removing the M.2 2230 solid-state drive	18
Installing the M.2 2230 solid-state drive	19
Heat sink	20
Removing the heat sink	20
Installing the heat sink	21
Fan	22
Removing the fan	22
Installing the fan	23
Speakers	25
Removing the speakers	25
Installing the speakers	26
WLAN card	27
Removing the WLAN card	27
Installing the WLAN card	27
WWAN card	28
Removing the WWAN card	28
Installing the WWAN card	29
Touchpad	30
Removing the touchpad	30
Installing the touchpad	31
Power-adapter port	33
Removing the power-adapter port	33
Installing the power-adapter port	33
Display assembly	34
Removing the display assembly	34
Installing the display assembly	37
I/O board	39
Removing the I/O board	39
Installing the I/O board	40
Power-button board	41
Removing the power-button board	41
Installing the power-button board	42
Power button with fingerprint reader	42
Removing the power button with fingerprint reader	42
Installing the power button with fingerprint reader	43
System board	44
Removing the system board	44
Installing the system board	46
Display bezel	47
Removing the display bezel	47
Installing the display bezel	48
Display panel	49
Removing the display panel	49
Installing the display panel	52
Display hinges	55
Removing the display hinges	55
Installing the display hinges	55
Camera	56
Removing the camera	56
Installing the camera	57
Display back-cover	58
Removing the display back-cover	58
Installing the display back-cover	59
Display cable	60
Removing the display cable	60
Installing the display cable	61
Palm-rest and keyboard assembly	62
Removing the palm-rest and keyboard assembly	62
Installing the palm-rest and keyboard assembly	63
Device drivers	65
Intel Chipset Software Installation Utility	65
Video drivers	65
Intel Serial IO driver	65
Intel Trusted Execution Engine Interface	65
Intel Virtual Button driver	65
Wireless and Bluetooth drivers	65
System setup	66
System setup	66
Entering BIOS setup program	66
Navigation keys	66
Boot Sequence	67
System setup options	67
Clearing CMOS settings	75
Clearing BIOS (System Setup) and System passwords	75
Troubleshooting	76
Enhanced Pre-Boot System Assessment (ePSA) diagnostics	76
Running the ePSA diagnostics	76
System diagnostic lights	76
Diagnostics	77
M-BIST	78
LCD Built-In Self-Test (BIST)	78
Recovering the operating system	78
Flashing BIOS (USB key)	79
Flashing the BIOS	79
Flea power release	79
Wi-Fi power cycle	80