HP EliteBook 850 G3 - Page 8

5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 35
Component replacement procedures .................................................................................................................. 35
Bottom cover ..................................................................................................................................... 35
Battery ............................................................................................................................................... 40
Hard drive .......................................................................................................................................... 41
SSD ..................................................................................................................................................... 43
Memory modules ............................................................................................................................... 44
WLAN/Bluetooth combo card ............................................................................................................ 46
WWAN module ................................................................................................................................... 48
Keyboard ........................................................................................................................................... 50
6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 54
Component replacement procedures .................................................................................................................. 54
RTC battery ........................................................................................................................................ 55
Internal base plate ............................................................................................................................ 56
Heat sink/fan assembly .................................................................................................................... 59
Fingerprint reader assembly ............................................................................................................. 62
Power button board .......................................................................................................................... 63
Touchpad button board ..................................................................................................................... 66
NFC module ....................................................................................................................................... 68
Smart card reader board ................................................................................................................... 69
USB/audio board ................................................................................................................................ 71
System board .................................................................................................................................... 72
Speaker assembly ............................................................................................................................. 75
Display assembly ............................................................................................................................... 76
Top cover ........................................................................................................................................... 81
7 Troubleshooting guide ................................................................................................................................. 82
Resources ............................................................................................................................................................. 83
General troubleshooting steps ............................................................................................................................ 83
Identify the issue ............................................................................................................................... 84
1. Understand the issue .................................................................................................. 84
Boot up sequence ......................................................................................... 84
Failure classication ..................................................................................... 84
2. Examine the environment .......................................................................................... 86
3. Perform a visual inspection of hardware ................................................................... 87
4. Update BIOS and drivers ............................................................................................. 87
Manually updating BIOS and drivers ............................................................ 87
Remotely deploying BIOS and drivers .......................................................... 87
Analyze the issue ............................................................................................................................... 87
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