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HP EliteBook 755 Maintenance and Service Guide - Page 117

WLAN device, WLAN label

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video, product description 2 volume adjusting 16 mute 16 W Windows system restore point 86, 87 Windows key, identifying 15 Windows tools using 87 wireless action key 16 wireless antennas disconnecting 39, 41 wireless antennas, identifying 9, 10 wireless certification label 21 wireless light, identifying 12, 19 wireless networking product description 2 WLAN antenna spare part number 26 WLAN antennas, identifying 9, 10 WLAN device 21 WLAN label 21 WLAN/Bluetooth combo card removal 39 spare part number 24, 39 WWAN antenna spare part number 26 WWAN antennas, identifying 9, 10 WWAN module removal 41 spare part number 24, 41 Index 107

Section	Page
Product description	11
Components	16
Right	16
Left	18
Display	19
Keyboard area	21
TouchPad	21
Lights	22
Buttons, speakers, and fingerprint reader	24
Special keys	25
Action keys	26
Hot keys (select products only)	27
Bottom	28
Front	29
Cover	30
Labels	31
Illustrated parts catalog	32
Computer major components	32
Display assembly subcomponents	35
Cable Kit	37
Miscellaneous parts	38
Removal and replacement procedures preliminary requirements	39
Tools required	39
Service considerations	39
Plastic parts	39
Cables and connectors	40
Drive handling	40
Grounding guidelines	41
Electrostatic discharge damage	41
Packaging and transporting guidelines	42
Workstation guidelines	42
Equipment guidelines	43
Removal and replacement procedures for Customer Self-Repair parts	44
Component replacement procedures	44
Bottom cover	44
Solid-state drive (SSD)	46
Memory modules	47
WLAN/Bluetooth combo card	49
WWAN module	51
Keyboard	53
Removal and replacement procedures for Authorized Service Provider parts	56
Component replacement procedures	56
Battery	57
Heat sink assembly	59
RTC battery	61
USB board	62
RJ-45 board with bracket	63
Power button board	64
Speaker assembly	65
Fingerprint reader assembly	66
TouchPad	67
TouchPad button board	69
NFC module	70
Smart card reader	71
Fan	72
System board	74
Display assembly	77
Top cover	87
Interpreting system validation diagnostic front panel LEDs and audible codes	88
Computer Setup (BIOS), TPM, and HP Sure Start	90
Using Computer Setup	90
Starting Computer Setup	90
Using a USB keyboard or USB mouse to start Computer Setup (BIOS)	90
Navigating and selecting in Computer Setup	90
Restoring factory settings in Computer Setup	91
Updating the BIOS	91
Determining the BIOS version	91
Downloading a BIOS update	92
Changing the boot order using the f9 prompt	93
TPM BIOS settings (select products only)	93
Using HP Sure Start (select products only)	93
Using HP PC Hardware Diagnostics (UEFI)	94
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device	94
Backing up, restoring, and recovering	96
Creating recovery media and backups	96
Using HP Recovery media (select products only)	96
Using Windows tools	97
Using the HP Cloud Recovery Download Tool (select products only)	98
Restore and recovery	98
Recovering using HP Recovery Manager	98
What you need to know before you get started	98
Using the HP Recovery partition (select products only)	99
Using HP Recovery media to recover	100
Changing the computer boot order	100
Removing the HP Recovery partition (select products only)	100
Specifications	101
Computer specifications	101
39.6-cm (15.6-in) display specifications	102
M.2 PCIe solid-state drive specifications	103
M.2 SATA solid-state drive specifications	104
Power cord set requirements	105
Requirements for all countries	105
Requirements for specific countries and regions	105
Statement of memory volatility	107
Nonvolatile memory usage	109
Questions and answers	111
Using HP Sure Start (select models only)	112
Recycling	113