Dell Latitude 7220 Rugged Extreme Tablet Service Manual - Page 5

Updating BIOS on systems with BitLocker enabled

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78

Updating your system BIOS using a USB flash drive

................................................................................................

79

Updating the Dell BIOS in Linux and Ubuntu environments

.....................................................................................

79

Flashing the BIOS from the F12 One-Time boot menu

.............................................................................................

79

System and setup password

..............................................................................................................................................

82

Assigning a system setup password

............................................................................................................................

83

Deleting or changing an existing system setup password

........................................................................................

83

5 Troubleshooting

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84

Enhanced Pre-Boot System Assessment (ePSA) diagnostics

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84

Running the ePSA diagnostics

.....................................................................................................................................

84

System diagnostic lights

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84

Recovering the operating system

.....................................................................................................................................

85

WiFi power cycle

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86

6 Getting help

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87

Contacting Dell

.....................................................................................................................................................................

87

Contents

5

Section	Page
Latitude 7220 Rugged Extreme Tablet Service Manual	3
Working on your tablet	6
Safety instructions	6
Before working inside your tablet	6
Safety precautions	7
Electrostatic discharge—ESD protection	7
ESD field service kit	8
Transporting sensitive components	8
After working inside your tablet	9
Major components of your system	10
Removing and installing components	13
Recommended tools	13
Screw list	13
Batteries	14
Lithium-ion battery precautions	14
Removing the batteries	14
Installing the batteries	15
Subscriber Identification Module (SIM) card	16
Removing the uSIM	16
Inserting the uSIM	17
Stylus	18
Removing the stylus	18
Installing the stylus	19
Display assembly	20
Removing the display assembly	20
Installing the display assembly	23
Function keys	26
Removing the function keys	27
Installing the function keys	28
Heat sink	29
Removing the heat-sink	29
Installing the heat-sink	30
System fan	31
Removing the system fan	31
Installing the system fan	32
Solid-state drive	33
Removing the M.2 2230 solid-state drive	33
Removing the M.2 2280 solid-state drive	33
Installing M.2 2230 solid-state drive	34
Installing the M.2 2280 solid-state drive	34
WLAN card	35
Removing the WLAN card	35
Installing the WLAN card	36
WWAN card	38
Removing the WWAN card	38
Installing the WWAN card	39
Microphone	40
Removing the microphone	40
Installing the microphone	40
Front camera	41
Removing the front camera	41
Installing the front camera	43
Coin-cell battery	45
Removing the coin-cell battery	45
Installing the coin-cell battery	46
System board	47
Removing the system board	47
Installing the system board	52
Rear Camera	55
Removing the rear camera	55
Installing the rear camera	56
Micro serial port and power connector port	57
Removing micro serial port and power connector port	57
Installing micro serial port and power connector port	58
Docking Board	60
Removing the docking board	60
Installing the docking board	61
Smart card reader and wireless passthrough daughterboard	62
Removing the smart card reader and wireless passthrough daughterboard	62
Installing the smart card reader and wireless passthrough daughterboard	64
System setup	67
Boot menu	67
Navigation keys	67
Boot Sequence	68
System setup options	68
General options	68
System information	69
Video	71
Security	71
Secure boot	72
Intel Software Guard Extensions	73
Performance	73
Power management	74
POST behavior	75
Manageability	76
Virtualization support	76
Wireless	77
Maintenance screen	77
System logs	77
SupportAssist System Resolution	77
About	78
Updating the BIOS in Windows	78
Updating BIOS on systems with BitLocker enabled	78
Updating your system BIOS using a USB flash drive	79
Updating the Dell BIOS in Linux and Ubuntu environments	79
Flashing the BIOS from the F12 One-Time boot menu	79
System and setup password	82
Assigning a system setup password	83
Deleting or changing an existing system setup password	83
Troubleshooting	84
Enhanced Pre-Boot System Assessment (ePSA) diagnostics	84
Running the ePSA diagnostics	84
System diagnostic lights	84
Recovering the operating system	85
WiFi power cycle	86
Getting help	87

Dell Latitude 7220 Rugged Extreme Tablet Service Manual - Page 5

Troubleshooting, Getting help, Updating the Dell BIOS in Linux and Ubuntu environments

Page 5 highlights