Hard drive .......................................................................................................................................... 35
Solid-state drives (M.2) ..................................................................................................................... 39
WLAN module .................................................................................................................................... 40
WWAN module ................................................................................................................................... 42
Memory module ................................................................................................................................ 44
6 Removal and replacement procedures for authorized service provider parts .................................................... 46
Component replacement procedures .................................................................................................................. 46
RTC battery ........................................................................................................................................ 47
Middle frame ..................................................................................................................................... 48
Speakers ............................................................................................................................................ 49
TouchPad ........................................................................................................................................... 51
Smart Card reader board ................................................................................................................... 52
Fingerprint reader board ................................................................................................................... 54
Fans ................................................................................................................................................... 55
Discrete graphics board .................................................................................................................... 56
Display LED board ............................................................................................................................. 57
Heat sink ............................................................................................................................................ 58
Keyboard ........................................................................................................................................... 61
System board .................................................................................................................................... 63
Display assembly ............................................................................................................................... 67
Top cover ........................................................................................................................................... 74
7 Troubleshooting guide ................................................................................................................................. 75
Resources ............................................................................................................................................................. 76
General troubleshooting steps ............................................................................................................................ 76
Identify the issue ............................................................................................................................... 77
1. Understand the issue .................................................................................................. 77
Boot up sequence ......................................................................................... 77
Failure classification ..................................................................................... 77
2. Examine the environment .......................................................................................... 79
3. Perform a visual inspection of hardware ................................................................... 80
4. Update BIOS and drivers ............................................................................................. 80
Manually updating BIOS and drivers ............................................................ 80
Remotely deploying BIOS and drivers .......................................................... 80
Analyze the issue ............................................................................................................................... 80
5. Remove or uninstall recently added hardware, software .......................................... 80
6. HP Hardware Diagnostics and Tools ........................................................................... 81
HP PC Hardware Diagnostics (UEFI) ............................................................. 81
HP Support Assistant (HPSA) ....................................................................... 83
HP BIOS Configuration Utility (BCU) ............................................................. 84
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