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Dell Inspiron 24 5420 All-in-One Owners Manual - Page 99

Installing the mid-frame assembly with antennas

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Installing the mid-frame assembly with antennas CAUTION: The information in this intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the base panel and provides a visual representation of the installation procedure. Steps Place the mid-frame assembly with antenna on a flat and clean surface and perform the steps in the Post-requisites to install the mid-frame assembly with antennas. NOTE: The mid-frame assembly with antenna consists of the following: ● Middle frame ● Base panel ● Wireless antenna Next steps 1. Install the display panel. 2. Install the power-button board with USB. 3. Install the stand hinges. 4. Install the microphones. 5. Install the speakers. 6. Install the system board. 7. Install theintegrated heat sink or discrete heat sink. 8. Install the M.2 2230 solid-state drive or M.2 2280 solid-state drive, as applicable. 9. Install the wireless card. 10. Install the memory module. Removing and installing Field Replaceable Units (FRUs) 99

Section	Page
Inspiron 24 5420 All-in-One Owner's Manual	1
Contents	3
Views of Inspiron 24 5420 All-in-One	7
Right	8
Front	9
Bottom	10
Back	11
Back panel	12
Service Tag	13
Retractable camera	13
Tilt	15
Inside view of your computer	17
Retractable camera	17
Set up your computer	19
Specifications of Inspiron 24 5420 All-in-One	25
Dimensions and weight	25
Stand	25
Processor	27
Chipset	28
Operating system	28
Memory	28
External ports	29
Internal slots	29
Ethernet	30
Wireless module	30
Audio	30
Storage	31
Media-card reader	31
Camera	32
Power adapter	32
Display	33
GPU—Integrated	34
GPU—Discrete	34
Environmental	34
Regulatory compliance	35
Operating and storage environment	35
Dell Support policy	36
Working inside your computer	37
Safety instructions	37
Before working inside your computer	37
Safety precautions	38
Electrostatic discharge—ESD protection	38
ESD field service kit	39
Transporting sensitive components	40
After working inside your computer	40
BitLocker	40
Recommended tools	40
Screw list	41
Major components of Inspiron 24 5420 All-in-One	42
Removing and installing Customer Replaceable Units (CRUs)	45
Stand	45
Removing the stand	45
Installing the stand	46
Back cover	47
Removing the back cover	47
Installing the back cover	48
I/O cover	49
Removing the I/O cover	49
Installing the I/O cover	50
Stand hinges	51
Removing the stand hinges	51
Installing the stand hinges	52
System-board shield	53
Removing the system-board shield	53
Installing the system-board shield	54
Hard drive	55
Removing the hard drive	55
Installing the hard drive	56
Solid-state drive	57
Removing the M.2 2230 solid-state drive	57
Installing the M.2 2230 solid-state drive	58
Removing the M.2 2280 solid-state drive	60
Installing the M.2 2280 solid-state drive	60
Memory module	62
Removing the memory module	62
Installing the memory module	63
Wireless card	64
Removing the wireless card	64
Installing the wireless card	65
Retractable-camera assembly	66
Removing the retractable-camera assembly	66
Installing the retractable-camera assembly	67
Fan	67
Removing the fan	67
Installing the fan	68
Speakers	69
Removing the speakers	69
Installing the speakers	70
Coin-cell battery	71
Removing the coin-cell battery	71
Installing the coin-cell battery	72
Removing and installing Field Replaceable Units (FRUs)	74
Heat sink (integrated graphics)	74
Removing the heat sink	74
Installing the heat sink	75
Heat sink (discrete graphics)	76
Removing the heat sink	76
Installing the heat sink	77
Media-card reader	78
Removing the media-card reader	78
Installing the media-card reader	79
Power-button board with USB	80
Removing the power-button board with USB	80
Installing the power-button board with USB	81
System board	83
Removing the system board	83
Installing the system board	86
Microphones	89
Removing the microphones	89
Installing the microphones	90
Antennas	92
Removing the antennas	92
Installing the antennas	93
Display panel	94
Removing the display panel	94
Installing the display panel	96
Middle frame assembly	97
Removing the mid-frame assembly with antennas	97
Installing the mid-frame assembly with antennas	99
Software	101
Operating system	101
Drivers and downloads	101
BIOS setup	102
Entering BIOS setup program	102
Navigation keys	102
One time boot menu	102
System setup options	103
Updating the BIOS	111
Updating the BIOS in Windows	111
Updating the BIOS using the USB drive in Windows	111
Updating the BIOS in Linux and Ubuntu	112
Updating the BIOS from the One Time Boot menu	112
System and setup password	113
Assigning a system setup password	113
Deleting or changing an existing system setup password	113
Clearing CMOS settings	114
Clearing BIOS (System Setup) and System passwords	114
Troubleshooting	115
Dell SupportAssist Pre-boot System Performance Check diagnostics	115
Running the SupportAssist Pre-Boot System Performance Check	115
System-diagnostic lights	115
Recovering the operating system	117
Backup media and recovery options	117
WiFi power cycle	118