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HP EliteBook 800 EliteBook 820 G4 Notebook PC EliteBook 828 G4 Notebook PC Mai - Page 65

The WWAN antennas are spared with the display enclosure.

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16. If it is necessary to replace the WLAN antennas, peel the transceivers off the top of the display enclosure (1), and then remove the antennas from the routing paths on the side of the display enclosure (2). The WLAN antennas are spared with the display enclosure. 17. If it is necessary to replace the WWAN antennas, peel the transceivers off the top of the display enclosure (1), and then remove the antennas from the routing paths on the side of the display enclosure (2). The WWAN antennas are spared with the display enclosure. Reverse this procedure to reassemble and install the display assembly. Component replacement procedures 55

Section	Page
Product description	11
External component identification	15
Right	15
Left	16
Display	17
Top	18
TouchPad	18
Lights	19
Buttons, speakers, and fingerprint reader	20
Keys	21
Using the hot keys	22
Bottom	23
Front	24
Labels	25
Illustrated parts catalog	26
Computer major components	26
Display assembly subcomponents	29
Cable Kit	30
Plastics Kit	31
Mass storage devices	32
Miscellaneous parts	33
Removal and replacement procedures preliminary requirements	35
Tools required	35
Service considerations	35
Plastic parts	35
Cables and connectors	36
Drive handling	36
Grounding guidelines	37
Electrostatic discharge damage	37
Packaging and transporting guidelines	38
Workstation guidelines	38
Equipment guidelines	39
Removal and replacement procedures for Customer Self-Repair parts	40
Component replacement procedures	40
Bottom cover	40
Battery	45
Hard drive	46
Solid-state drive	48
Memory modules	50
WLAN/Bluetooth combo card	52
WWAN module	54
Keyboard	56
Removal and replacement procedures for Authorized Service Provider parts	59
Component replacement procedures	59
Display assembly	60
Heat sink/fan assembly	66
Smart card reader board	68
Touchpad board	69
NFC module	70
System board	71
RTC battery	75
Fingerprint reader assembly	76
Speaker assembly	77
Top cover	78
Interpreting system validation diagnostic front panel LEDs and audible codes	79
Computer Setup (BIOS), TPM, and HP Sure Start	81
Using Computer Setup	81
Starting Computer Setup	81
Navigating and selecting in Computer Setup	81
Restoring factory settings in Computer Setup	81
Updating the BIOS	82
Determining the BIOS version	82
Downloading a BIOS update	83
Changing the boot order using the f9 prompt	83
TPM BIOS settings (select products only)	84
Using HP Sure Start (select products only)	84
Using HP PC Hardware Diagnostics (UEFI)	85
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device	85
Backup and recovery	87
Creating recovery media and backups	87
Creating HP Recovery media (select products only)	87
Using Windows tools	88
Restore and recovery	89
Recovering using HP Recovery Manager	89
What you need to know before you get started	89
Using the HP Recovery partition (select products only)	90
Using HP Recovery media to recover	90
Changing the computer boot order	91
Removing the HP Recovery partition (select products only)	92
Specifications	93
Input power	93
Operating environment	93
Power cord set requirements	94
Requirements for all countries	94
Requirements for specific countries and regions	94
Statement of memory volatility	96
Nonvolatile memory usage	98
Questions and answers	100
Using HP Sure Start (select models only)	101
Recycling	102