Lenovo 21EN Manuals

Manuals and User Guides for Lenovo 21EN. We have 2 Lenovo 21EN manuals available for free PDF download: Hardware Maintenance Manual, User Manual

Lenovo 21EN Hardware Maintenance Manual (100 pages)

Brand: Lenovo | Category: Laptop | Size: 36.29 MB

Table of Contents
3
About this Manual
5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

25
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
  29
- Power System Checkout
  30
- Checking the Ac Power Adapter
  31
- Checking the Built-In Battery and Operational Charging
  31
- Checking the Coin-Cell Battery
  31
Chapter 4. Related Service Information

33
- Reset or Restore Windows
  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
  36
- Symptom-To-FRU Index
  37
- Numeric Error Codes
  38
- Error Messages
  39
- Beep Errors
  39
- Beep Symptoms
  41
- LCD-Related Symptoms
  41
- Intermittent Problems
  42
- Undetermined Problems
  42
Chapter 5. RAID

45
- Storage Drive Requirements for RAID Levels
  45
- Configuring RAID with the Intel RST Configuration Utility (for Intel Models)
  45
Chapter 6. Special Keys

49
Chapter 7. Locations

51
- Locating Computer Controls and Connectors
  51
- Front View
  51
- Side View
  53
- Rear View
  54
- Bottom View
  56
- Locating Frus and Crus
  57
- Major Frus and Crus
  58
- LCD Frus
  60
- Miscellaneous Parts
  61
- Connector and Cable Guide
  61
- Looking up FRU Information
  64
Chapter 8. FRU Replacement Notices

65
- Service Tool Kit
  65
- Screw Notices
  65
- Retaining Serial Numbers
  66
- Restoring the Serial Number of the System Unit
  66
- Retaining the UUID
  67
- Reading or Writing the ECA Information
  67
Chapter 9. Removing or Replacing a FRU

69
- General Guidelines
  69
- Before Servicing the Computer
  69
- Disabling the Built-In Battery
  69
- Removing the Nano-SIM Card and the Nano-SIM-Card Tray
  70
- 1010 Keyboard
  70
- 1020 Base Cover Assembly
  72
- 1030 Speaker Assembly
  73
- 1040 Coin-Cell Battery
  74
- 1050 M.2 Solid-State Drive
  74
- 1060 Wireless WAN Card (for Selected Models)
  75
- 1070 Memory Module
  76
- 1080 DC-IN Bracket and DC-IN Cable
  77
- 1090 Thermal Fan Assembly
  77
- 1100 Built-In Battery
  78
- 1110 IO Bracket
  79
- 1120 Fingerprint Reader, Bracket and Cable
  80
- 1130 System Board
  81
- 1140 Smart Card Reader and Smart Card Reader Cable
  83
- 1150 LCD Unit
  84
- 1160 Keyboard Bezel Assembly
  86
- 2010 LCD Bezel Assembly
  87
- 2020 LCD Panel and LCD Elastic Adhesive Tapes
  87
- 2030 Camera / MIC Combo Board
  90
- 2040 Camera/Led Cable
  90
- 2050 LCD Hinges
  91
- 2060 Wireless LAN / WAN Antenna Assembly
  92
- 2070 LCD Cover Assembly
  93
Appendix A. Notices

95
Appendix B. Abbreviation Table

97

Lenovo 21EN User Manual (70 pages)

Brand: Lenovo | Category: Laptop | Size: 18.05 MB

Table of Contents
3
Discover Your Lenovo Notebook
5
Chapter 1. Meet Your Computer

7
- Front View
  7
- Side View
  9
- Related Topics
  10
- Bottom View
  11
- Rear View
  11
- Features and Specifications
  13
- USB Specifications
  13
Chapter 2. Get Started with Your Computer

15
Chapter 3. Explore Your Computer

25
- Lenovo Apps
  25
- The Vantage App
  25
- Lenovo Quick Clean / Clean Your Device
  25
- Smart Features (for Selected Models)
  26
- Color Calibration (for Selected Models)
  28
- Intelligent Cooling
  29
- Manage Power
  29
- Check the Battery Status
  30
- Charge the Computer
  30
- Change the Power Settings
  30
- Transfer Data
  31
- Set up a Bluetooth Connection
  31
- Use an SD Card or Smart Card (for Selected Models)
  31
- Accessories
  32
- Purchase Accessories
  32
Chapter 4. Secure Your Computer and Information

33
Chapter 5. Configure Advanced Settings

39
- Uefi Bios
  39
- Enter the UEFI BIOS Menu
  39
- Navigate in the UEFI BIOS Interface
  39
- Set the System Date and Time
  39
- Change the Startup Sequence
  39
- View UEFI BIOS Event Log
  39
- Detect Memory Retraining
  40
- Reset System to Factory Defaults
  41
- Update UEFI BIOS
  41
- RAID (for Intel Models Only)
  42
- Storage Drive Requirements for RAID Levels
  42
- Enter the Intel RST Configuration Utility
  42
- Create RAID Volumes
  43
- Delete RAID Volumes
  43
- Reset Storage Drives to Non-RAID
  43
- Rebuild RAID 1 Volumes
  44
- Install a Windows Operating System and Drivers
  44
Chapter 6. CRU Replacement

47
- CRU List
  47
- Disable Fast Startup and the Built-In Battery
  47
- Replace a CRU
  48
- Keyboard
  48
- Base Cover Assembly
  52
- Wireless WAN Card (for Selected Models)
  53
- Coin-Cell Battery
  55
- Memory Module
  55
- M.2 Solid-State Drive and Its Bracket
  56
Chapter 7. Help and Support

59
- Frequently Asked Questions
  59
- Error Messages
  60
- Beep Errors
  61
- Self-Help Resources
  62
- Windows Label
  63
- Call Lenovo
  63
- Before You Contact Lenovo
  63
- Lenovo Customer Support Center
  64
- Purchase Additional Services
  65
Appendix A. Compliance Information

67
Appendix B. Notices and Trademarks

69

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More Lenovo Manuals

Lenovo 21EN Manuals

Lenovo 21EN Hardware Maintenance Manual (100 pages)

Table of Contents

Chapter 1. Safety Information

Chapter 2. Important Service Information

Chapter 3. General Checkout

Chapter 4. Related Service Information

Chapter 5. RAID

Chapter 6. Special Keys

Chapter 7. Locations

Chapter 8. FRU Replacement Notices

Chapter 9. Removing or Replacing a FRU

Appendix A. Notices

Appendix B. Abbreviation Table

Lenovo 21EN User Manual (70 pages)

Table of Contents

Chapter 1. Meet Your Computer

Chapter 2. Get Started with Your Computer

Chapter 3. Explore Your Computer

Chapter 4. Secure Your Computer and Information

Chapter 5. Configure Advanced Settings

Chapter 6. CRU Replacement

Chapter 7. Help and Support

Appendix A. Compliance Information

Appendix B. Notices and Trademarks

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Lenovo Categories