Lenovo 21LS001HGE-CAMPUS Manuals

Manuals and User Guides for Lenovo 21LS001HGE-CAMPUS. We have 1 Lenovo 21LS001HGE-CAMPUS manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21LS001HGE-CAMPUS Hardware Maintenance Manual

Lenovo 21LS001HGE-CAMPUS Hardware Maintenance Manual (106 pages)

Brand: Lenovo | Category: Laptop | Size: 43.06 MB

Table of Contents

Table of Contents
3
About this Manual

5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

25
- Strategy for Replacing Frus
  25
  - Strategy for Replacing a Solid-State Drive
    25
  - How to Use Error Message
    26
- Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
  26
  - Product Definition
    26
  - FRU Identification
    26
Chapter 3. General Checkout

27
- What to Do First
  27
- Checkout Guide
  28
  - Diagnosing Problems
    28
  - Quick Test Programs
    29
  - UEFI Diagnostic Program
    29
  - Bootable Diagnostic Programs
    30
- Power System Checkout
  30
Chapter 4. Related Service Information

33
- Reset or Restore Windows
  33
  - Use Lenovo Recovery Options
    33
  - Use Window Recovery Options
    33
- Passwords
  33
  - Power-On Password
    33
  - Nvme Passwords
    33
  - Supervisor Password
    34
  - System Management Password
    34
  - How to Remove the Power-On Password
    35
  - How to Remove the Nvme Password
    35
  - How to Remove the System Management Password
    35
- Power Management
  36
  - Sleep Mode
    36
  - Hibernation Mode
    37
- Symptom-To-FRU Index
  37
  - Numeric Error Codes
    38
  - Error Messages
    39
  - Battery-Charge LED Indicator Diagnosis
    39
  - Beep Symptoms
    41
  - LCD-Related Symptoms
    42
  - Intermittent Problems
    43
  - Undetermined Problems
    43
Chapter 5. Special Keys

45
Chapter 6. Locations

47
- Locating Computer Controls and Connectors
  47
  - Front
    47
  - Left and Right
    48
  - Bottom
    49
- Locating Frus and Crus
  50
  - Major Frus and Crus
    51
  - LCD Frus and Crus
    53
  - Miscellaneous Parts
    55
  - Connector and Cable Guide
    55
- Looking up FRU Information
  58
Chapter 7. FRU Replacement Notices

59
- Service Tool Kit
  59
- Screw Notices
  59
- Retaining Serial Numbers
  60
Chapter 8. Removing or Replacing a FRU

63
- General Guidelines
  63
- Before Servicing the Computer
  63
  - Disabling the Built-In Battery
    63
  - Removing the Nano-SIM Card and Nano-SIM-Card Tray
    64
- Base Cover Assembly
  64
  - Applying Labels to the Base Cover Assembly
    65
- Solid-State Drive and Its Bracket (for Selected Models)
  66
  - Type 1
    67
  - Type 2
    67
- Wireless WAN Card and Its Bracket (for Selected Models)
  68
  - 5G Models
    68
  - 4G Models
    69
- Built-In Battery
  70
- Thermal Fan Assembly
  71
- I/O Board
  72
- Power Button with or Without Fingerprint Reader
  73
- System Board I/O Bracket
  74
- I/O Cable
  75
- Wireless WAN Antennas (for Selected Models)
  75
- Wireless WAN Antenna Cable Guide
  76
- Speaker Assembly
  77
- LCD Unit and Wireless LAN Antenna Cable Guide
  78
- Speaker Cable Guide
  79
- Smart Card Reader (for Selected Models)
  80
- Dummy Smart Card Reader (for Selected Models)
  81
- Coin-Cell Battery
  81
- Smart Card Reader-Trackpad-NFC Cable (for Selected Models)
  82
- Trackpad
  83
- NFC Card
  85
- System Board
  86
  - Replace the System Board
    87
  - How to Configure Keyboard Language in UEFI BIOS
    88
- LCD Unit
  88
- Keyboard Assembly
  89
- LCD Bezel Sheet
  90
- Camera Shutter or Dummy Camera Shutter
  91
- Strip Cover
  91
- Hinge Cap
  92
- LCD Hinges
  93
- LCD Panel, LCD Cable and Elastic Adhesive Tapes
  93
  - How to Install New Color Profiles after Replacing the LCD Panel
    95
- Camera Module and Cable (for Selected Models)
  96
- Wireless LAN Antenna Assembly
  97
- Antenna Locations
  97
- LCD Cover Assembly
  98
Appendix A. Notices

101
Appendix B. Abbreviation Table

103

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