Bottom cover ..................................................................................................................................... 31
Battery ............................................................................................................................................... 33
Solid-state drive (M.2) ....................................................................................................................... 35
Optane memory module ................................................................................................................... 37
Memory module ................................................................................................................................ 38
Solid-state drive (2.5 inch) ................................................................................................................ 40
WWAN modules ................................................................................................................................. 42
WLAN/Bluetooth combo card ............................................................................................................ 44
Drive connector ................................................................................................................................. 46
Fingerprint reader board ................................................................................................................... 47
TouchPad ........................................................................................................................................... 48
NFC module ....................................................................................................................................... 50
Bottom speakers ............................................................................................................................... 51
Card reader/audio board ................................................................................................................... 53
Power button board .......................................................................................................................... 54
Thermal module ................................................................................................................................ 55
System board .................................................................................................................................... 58
RTC battery ........................................................................................................................................ 62
Top speaker ....................................................................................................................................... 63
Display assembly ............................................................................................................................... 64
Top cover/keyboard ........................................................................................................................... 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 classication ..................................................................................... 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
HP BIOS Conguration Utility (BCU) ............................................................. 83
HP Image Diagnostic Tool ............................................................................. 83
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