HP ZBook 15 G4 - Page 6

5 Removal and replacement procedures for Authorized Service Provider parts ................................................... 32
Component replacement procedures .................................................................................................................. 32
Display subcomponents (bezel, panel, camera) ............................................................................... 32
Bottom cover ..................................................................................................................................... 36
Battery ............................................................................................................................................... 37
Memory module ................................................................................................................................ 38
Solid-state drive (M.2) ....................................................................................................................... 40
WLAN module .................................................................................................................................... 41
WWAN module ................................................................................................................................... 43
Smart card reader .............................................................................................................................. 45
Hard drive .......................................................................................................................................... 46
RTC battery ........................................................................................................................................ 48
Keyboard ........................................................................................................................................... 49
Heat sink assembly ........................................................................................................................... 52
Graphics board .................................................................................................................................. 56
Speakers ............................................................................................................................................ 57
TouchPad module .............................................................................................................................. 58
LED board .......................................................................................................................................... 59
Fans ................................................................................................................................................... 60
Fingerprint reader board ................................................................................................................... 61
System board .................................................................................................................................... 62
Display assembly ............................................................................................................................... 65
Lock bracket ...................................................................................................................................... 73
6 Troubleshooting guide ................................................................................................................................. 74
Resources ............................................................................................................................................................. 75
General troubleshooting steps ............................................................................................................................ 75
Identify the issue ............................................................................................................................... 76
1. Understand the issue .................................................................................................. 76
Boot up sequence ......................................................................................... 76
Failure classication ..................................................................................... 76
2. Examine the environment .......................................................................................... 78
3. Perform a visual inspection of hardware ................................................................... 79
4. Update BIOS and drivers ............................................................................................. 79
Manually updating BIOS and drivers ............................................................ 79
Remotely deploying BIOS and drivers .......................................................... 79
Analyze the issue ............................................................................................................................... 79
5. Remove or uninstall recently added hardware, software .......................................... 79
6. HP Hardware Diagnostics and Tools ........................................................................... 80
HP PC Hardware Diagnostics (UEFI) ............................................................. 80
HP Support Assistant (HPSA) ....................................................................... 82
vi