Freeze at Windows Logo (hang/lockup) ....................................................................... 108
Electromagnetic Interference (EMI) .............................................................................. 109
No wake up .................................................................................................................... 110
Unresponsive ................................................................................................................ 111
Slow performance ......................................................................................................... 111
HP Smart Adapter warning message ........................................................................... 112
Incorrect time and date ................................................................................................ 112
Display ............................................................................................................................................. 113
Display anomalies ......................................................................................................... 113
Symptom .................................................................................................... 113
Quick check ................................................................................................. 114
HP PC Hardware Diagnostics (UEFI) for video test ..................................... 114
Display assembly diagram ......................................................................... 115
Dead pixel ..................................................................................................................... 115
No video (internal) ........................................................................................................ 115
No video (external) ....................................................................................................... 116
DisplayPort/VGA ........................................................................................................... 116
HDMI .............................................................................................................................. 116
No or bad external video via docking ........................................................................... 117
Incorrect or missing color/distorted image .................................................................. 117
Touch screen ................................................................................................................. 118
I/O devices ....................................................................................................................................... 119
Keyboard ....................................................................................................................... 119
Keyboard point stick ..................................................................................................... 120
Keyboard backlight ....................................................................................................... 120
TouchPad ....................................................................................................................... 121
Network Connectivity Ethernet (RJ-45 jack) ................................................................ 121
Network connectivity wireless (WLAN) ........................................................................ 122
WWAN ............................................................................................................................ 123
USB ................................................................................................................................ 124
Smart card reader ......................................................................................................... 125
Speaker, headphone - audio issues .............................................................................. 126
Thunderbolt (TB) ........................................................................................................... 127
Thunderbolt 3 dock ....................................................................................................... 128
Storage ............................................................................................................................................ 129
Hard drive/solid-state drive not recognized ................................................................ 130
No boot to operating system (no read/write error) ..................................................... 130
Read-write error ........................................................................................................... 131
Slow performance ......................................................................................................... 131
Blue screen (BSOD) error .............................................................................................. 131
Noisy hard drive ............................................................................................................ 132
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