HP ZBook 14u G4

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4. Rotate the connector side of board upward (4), and then remove it from the computer (5).

Reverse this procedure to install the power button board.

72 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

Main Page

Table of Contents7
Product Description13
External Component Identification17
Right17
Left18
Display19
Top20
Touchpad20
Lights21
Buttons, Speakers, and Fingerprint Reader22
Keys23
Using the Hot Keys24
Bottom25
Front26
Labels27
Illustrated Parts Catalog28
Computer Major Components28
Display Assembly Subcomponents31
Plastics Kit32
Mass Storage Devices33
Cable Kit34
Miscellaneous Parts34
Removal and Replacement Procedures Preliminary Requirements36
Tools Required36
Service Considerations36
Plastic Parts36
Cables and Connectors37
Drive Handling37
Grounding Guidelines38
Electrostatic Discharge Damage38
Packaging and Transporting Guidelines39
Workstation Guidelines39
Equipment Guidelines40
Removal and Replacement Procedures for Customer Self-Repair Parts41
Component Replacement Procedures41
Bottom Cover41
Battery46
Hard Drive47
Solid-State Drive (SSD)49
Memory Modules50
Wlan/Bluetooth Combo Card52
WWAN Module54
Keyboard56
Removal and Replacement Procedures for Authorized Service Provider Parts59
Component Replacement Procedures59
RTC Battery60
Internal Base Plate61
Heat Sink/Fan Assembly63
Fingerprint Reader Assembly65
Touchpad Board67
NFC Module68
Smart Card Reader Board69
Usb/Audio Board71
System Board72
Speaker Assembly75
Display Assembly76
Power Button Board83
Top Cover85
Interpreting System Validation Diagnostic Front Panel Leds and Audible Codes86
Troubleshooting Guide88
Resources89
General Troubleshooting Steps89
Identify the Issue90
Understand the Issue90
Boot up Sequence90
Failure Classification90
Examine the Environment92
Perform a Visual Inspection of Hardware93
Update BIOS and Drivers93
Manually Updating BIOS and Drivers93
Remotely Deploying BIOS and Drivers93
Analyze the Issue93
Remove or Uninstall Recently Added Hardware, Software93
HP Hardware Diagnostics and Tools94
HP PC Hardware Diagnostics (UEFI)94
HP Support Assistant (HPSA)96
HP BIOS Configuration Utility (BCU)97
HP Image Diagnostic Tool97
HP Thermal Monitor97
Non HP Diagnostics Tools97
Status Lights, Blinking Light Codes, Troubleshooting Lights, and POST Error Messages98
Status Lights98
Blinking Light Codes99
POST Error Messages99
Power Good (Troubleshooting) Lights100
Resolve the Issue101
Hard Reset101
Soft Reset (Default Settings)102
Reseat Cables and Connections102
Test with Minimum Configuration103
Essential Hardware Configuration103
Safe Mode104
Test with Verified Working Configuration (Hardware And/Or Operating System)104
Replace the System Board104
Verify Solution105
Helpful Hints105
At Startup105
During Operation106
Consulting with HP Service106
Common Issues and Possible Solutions107
Power-On Issues107
No Power107
Intermittent Power-On, Shutdown, Reboot109
AC Adapter Issue110
Battery Not Recognized, Not Charging110
Battery Discharges too Fast112
Burnt Smell113
Post113
No Video (with Power)113
Blinking Lights114
Diagnostics Error Messages115
BIOS Password116
Performance (OS)116
Intermittent Shutdown117
Blue Screen118
Freeze at Windows Logo (Hang/Lockup)120
Electromagnetic Interference (EMI)121
No Wake up121
Unresponsive123
Slow Performance123
HP Smart Adapter Warning Message124
Incorrect Time and Date124
Display125
Display Anomalies125
Symptom125
Quick Check126
HP PC Hardware Diagnostics (UEFI) for Video Test126
Display Assembly Diagram127
Dead Pixel127
No Video (Internal)127
No Video (External)128
Displayport/Vga128
Hdmi128
No or Bad External Video Via Docking129
Incorrect or Missing Color/Distorted Image129
Touch Screen130
I/O Devices131
Keyboard131
Keyboard Point Stick132
Keyboard Backlight132
Touchpad133
Network Connectivity Ethernet (RJ-45 Jack)133
Network Connectivity Wireless (WLAN)134
Wwan135
Usb136
Smart Card Reader137
Speaker, Headphone - Audio Issues138
Thunderbolt (TB)139
Storage140
Hard Drive/Solid-State Drive Not Recognized141
No Boot to Operating System (no Read/Write Error)141
Read-Write Error142
Slow Performance142
Blue Screen (BSOD) Error142
Noisy Hard Drive143
Mechanical144
Fan Error Message - 90B144
Noise (Sound)145
Fan Runs Constantly146
Thermal Shutdown (Hot)147
Stuck Power Button147
Additional Information148
Acronyms148
Blinking Lights and Boot Error Codes149
Processor Not Executing Code149
BIOS Recovery Code Unable to Find Valid BIOS Recovery Image149
Memory Module Error149
Graphics Controller Error (no Controller)150
Failure - System Board Error150
Intel Trusted Execution Technology (TXT) Error150
Sure Start Unable to Find Valid BIOS Boot Block Image150
Sure Start Has Identified a Problem (Manual Recovery Policy Set)151
POST Error Messages and User Actions151
Routine Maintenance for Performance Improvement153
Common Blue Screen Error Messages153
Error Message List153
Bug Check Symbolic Names153
Microsoft General Troubleshooting of Windows Bug Check Codes154
Use Windows Debugging Tool154
Windows Software Development Kit (SDK)155
Display Issue: Pixel Anomalies159
Cable Management160
Connector Types161
Computer Setup (BIOS), TPM, and HP Sure Start163
Using Computer Setup163
Starting Computer Setup163
Navigating and Selecting in Computer Setup163
Restoring Factory Settings in Computer Setup163
Updating the BIOS164
Determining the BIOS Version164
Downloading a BIOS Update165
Changing the Boot Order Using the F9 Prompt165
TPM BIOS Settings (Select Products Only)166
Using HP Sure Start (Select Products Only)166
Using HP PC Hardware Diagnostics (UEFI)167
Downloading HP PC Hardware Diagnostics (UEFI) to a USB Device167
11 Backup and Recovery169
Creating Recovery Media and Backups169
Creating HP Recovery Media (Select Products Only)169
Using Windows Tools170
Restore and Recovery171
Recovering Using HP Recovery Manager171
What You Need to Know before You Get Started171
Using the HP Recovery Partition (Select Products Only)172
Using HP Recovery Media to Recover172
Changing the Computer Boot Order173
Removing the HP Recovery Partition (Select Products Only)174
12 Specifications175
Computer Specifications175
35.6-CM (14.0-In) Display Specifications176
Solid-State Drive Specifications176
Hard Drive Specifications177
13 Power Cord Set Requirements178
Requirements for All Countries178
Requirements for Specific Countries and Regions178
14 Statement of Memory Volatility180
Nonvolatile Memory Usage183
Questions and Answers185
Using HP Sure Start (Select Models Only)186
15 Recycling187
Index188

HP ZBook 14u G4

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