Lenovo 20H4 Manuals

Manuals and User Guides for Lenovo 20H4. We have 2 Lenovo 20H4 manuals available for free PDF download: User Manual, Hardware Maintenance Manual

Lenovo 20H4 User Manual (136 pages)

Brand: Lenovo | Category: Laptop | Size: 6.59 MB

Table of Contents
3
Important Information about Using Your Computer
7
Important Safety Information

7
Chapter 1. Product Overview

19
- Computer Controls, Connectors, and Indicators
  19
  - Front View
    19
  - Left-Side View
    20
  - Right-Side View
    21
  - Rear View
    22
  - Bottom View
    22
  - Status Indicators
    23
- Important Product Information
  24
- Computer Features
  26
- Computer Specifications
  27
- Operating Environment
  28
- Lenovo Programs
  28
  - Accessing Lenovo Programs
    28
  - An Introduction to Lenovo Programs
    29
Chapter 2. Using Your Computer

31
- Registering Your Computer
  31
- Frequently Asked Questions
  31
- Getting Help about the Windows Operating System
  32
- Using the Special Keys
  32
- Using the Thinkpad Pointing Device
  34
- Thinkpad Pointing Device Overview
  34
- Power Management
  39
  - Using the Ac Power Adapter
    39
  - Using the Battery
    39
  - Managing the Battery Power
    41
  - Power-Saving Modes
    41
- Cabled Ethernet Connections
  42
- Wireless Connections
  42
- Using the NVIDIA Optimus Graphics Feature
  44
- Using Audio Features
  44
- Using the Camera
  45
- Using a Media Card
  45
- Using an External Display
  46
- Finding Thinkpad Options
  48
- Traveling with Your Computer
  48
Chapter 3. Accessibility, Ergonomic, and Maintenance Information

49
- Accessibility Information
  49
- Ergonomic Information
  51
- Cleaning and Maintenance
  52
Chapter 4. Security

55
- Using Passwords
  55
  - Passwords Introduction
    55
  - Setting, Changing, or Removing a Password
    56
- Hard Disk Security
  57
- Setting the Security Chip
  57
- Using the Camera
  58
- Using the Fingerprint Reader
  58
- Deleting Data from Your Storage Drive
  60
- Using Firewalls
  60
- Protecting Data against Viruses
  61
Chapter 5. Advanced Configuration

63
Chapter 6. Troubleshooting Computer Problems

79
- General Tips for Preventing Problems
  79
- Diagnosing Problems
  79
- Troubleshooting
  80
  - Computer Stops Responding
    80
  - Spills on the Keyboard
    81
  - Error Messages
    81
  - Beep Errors
    83
  - Memory Module Problems
    84
  - Ethernet Problems
    84
  - Wireless-LAN Problem
    85
  - Bluetooth Problem
    85
  - Thinkpad Pointing Device Problems
    85
  - Keyboard Problems
    86
  - Computer Screen Problems
    86
  - External Monitor Problems
    88
  - Audio Problems
    90
  - Battery Problems
    91
  - Ac Power Adapter Problem
    92
  - Power Problems
    92
  - Power Button Problem
    93
  - Boot Problems
    93
  - Sleep and Hibernation Problems
    93
  - Hard Disk Drive Problems
    94
  - Solid-State Drive Problem
    94
  - Software Problem
    94
  - USB Problem
    95
Chapter 7. Recovery Information

97
- Recovery Information for the Windows 7 Operating System
  97
  - Creating and Using Recovery Media
    97
  - Reinstalling Preinstalled Programs and Device Drivers
    98
- Recovery Information for the Windows 10 Operating System
  99
Chapter 8. Replacing Devices

101
- Static Electricity Prevention
  101
- Disabling the Built-In Battery
  101
- Replacing the Bottom Cover
  102
- Replacing the Memory Module
  102
- Replacing the Internal Storage Drive
  105
- Replacing the Coin-Cell Battery
  108
Chapter 9. Getting Support

113
- Before You Contact Lenovo
  113
- Getting Help and Service
  113
  - Using Diagnostic Programs
    114
  - Lenovo Support Web Site
    114
  - Calling Lenovo
    114
- Purchasing Additional Services
  115
Appendix A. Regulatory Information

117
Appendix B. WEEE and Recycling Statements of Countries and Regions

123
Appendix C. Restriction of Hazardous Substances (Rohs) Directive of Countries and Regions

127
Appendix D. Notices

131
Appendix E. Trademarks

133

Lenovo 20H4 Hardware Maintenance Manual (104 pages)

Brand: Lenovo | Category: Notebook | Size: 35.89 MB

Table of Contents

3
- About this Manual
  5
- Chapter 1. Safety Information
  
  7
- Chapter 2. Important Service Information
  
  27
  - Strategy for Replacing Frus
    27
    
    Strategy for Replacing a Hard Disk Drive, a Hybrid Drive, or a Solid-State Drive
    27
    
    Important Notice for Replacing a System Board
    28
    
    How to Use Error Message
    28
  - Strategy for Replacing Frus for CTO, Special Bid Model, and Standard Models
    28
    
    Product Definition
    28
    
    FRU Identification
    29
- Chapter 3. General Checkout
  
  31
  - What to Do First
    31
  - Checkout Guide
    32
    
    Lenovo Companion
    32
    
    Quick Test Programs
    32
    
    UEFI Diagnostic Program
    33
    
    Bootable Diagnostic Programs
    34
  - Power System Checkout
    35
    
    Checking the Ac Power Adapter
    35
    
    Checking the Built-In Battery and Operational Charging
    35
    
    Checking the Coin-Cell Battery
    36
- Chapter 4. Related Service Information
  
  37
- Chapter 5. Status Indicators
  
  51
- Chapter 6. Function Keys
  
  53
- Chapter 7. Locations
  
  55
  - Locating Computer Controls, Connectors, and Indicators
    55
    
    Front View
    55
    
    Bottom View
    56
    
    Rear View
    56
  - Locating Frus and Crus
    56
    
    Major Frus
    58
    
    LCD Frus
    60
    
    Connector and Cable Guide
    61
  - Looking up FRU Information
    64
- Chapter 8. FRU Replacement Notices
  
  65
  - Screw Notices
    65
  - Retaining Serial Numbers
    66
    
    Restoring the Serial Number of the System Unit
    66
    
    Retaining the UUID
    67
- Chapter 9. Removing or Replacing a FRU
  
  69
  - General Guidelines
    69
  - Before Servicing the Computer
    70
  - Disconnect the Battery
    70
  - 1010 Bottom Cover
    71
  - 1020 Internal Storage Drive
    72
  - 1030 Memory Module
    74
  - 1040 Wireless LAN Card
    75
  - 1050 Coin-Cell Battery
    75
  - 1060 Keyboard
    76
  - 1070 Battery Pack
    78
Keyboard Bezel Assembly

79
- Step Screw (Quantity)
  80
- 1010 Bottom Cover
  81
- 1020 Internal Storage Drive
  81
- 1030 Memory Module
  81
- 1040 Wireless LAN Card
  81
- 1050 Coin-Cell Battery
  81
- 1060 Keyboard
  81
- 1090 Speaker Assembly
  81
- 1070 Battery Pack
  82
- 1110 System Board and Thermal Fan Assembly
  83
- Color Torque
  86
- Silver 0.294 Nm (3.0 Kgf-CM)
  86
- 1120 Base Cover Assembly and LCD Unit
  88
- 2010 LCD Bezel Assembly
  90
- 2020 LCD Panel
  90
- 2030 Hinge Kit
  91
- 2040 Integrated Camera and Microphone Combo Card
  94
- 2050 Thinkpad-Logo-LED Card and LCD Cable Assembly
  95
- 2060 Wireless LAN Antennas Assembly and LCD Rear Cover Assembly
  95
- Appendix A. Notices
  
  99
  - Electronic Emissions Notices
    100
  - Trademarks
    100
- Appendix B. Abbreviation Table
  
  101

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Lenovo 20H4 Manuals

Lenovo 20H4 User Manual (136 pages)

Table of Contents

Important Safety Information

Chapter 1. Product Overview

Chapter 2. Using Your Computer

Chapter 3. Accessibility, Ergonomic, and Maintenance Information

Chapter 4. Security

Chapter 5. Advanced Configuration

Chapter 6. Troubleshooting Computer Problems

Chapter 7. Recovery Information

Chapter 8. Replacing Devices

Chapter 9. Getting Support

Appendix A. Regulatory Information

Appendix B. WEEE and Recycling Statements of Countries and Regions

Appendix C. Restriction of Hazardous Substances (Rohs) Directive of Countries and Regions

Appendix D. Notices

Appendix E. Trademarks

Lenovo 20H4 Hardware Maintenance Manual (104 pages)

Table of Contents

Table of Contents

Chapter 1. Safety Information

Chapter 2. Important Service Information

Chapter 3. General Checkout

Chapter 4. Related Service Information

Chapter 5. Status Indicators

Chapter 6. Function Keys

Chapter 7. Locations

Chapter 8. FRU Replacement Notices

Chapter 9. Removing or Replacing a FRU

Keyboard Bezel Assembly

Appendix A. Notices

Appendix B. Abbreviation Table

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