Lenovo 21JW Manuals

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

Lenovo 21JW Hardware Maintenance Manual (102 pages)

Brand: Lenovo | Category: Laptop | Size: 50 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
  30
- Power System Checkout
  30
- Checking the Ac Power Adapter
  31
- Checking the Built-In Battery and Operational Charging
  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
- Enable AMD Integrated Management Technology (for Selected Models)
  36
- Power Management
  36
- Sleep Mode
  36
- Hibernation Mode
  37
- Symptom-To-FRU Index
  37
- Numeric Error Codes
  38
- Error Messages
  39
- Beep Errors
  39
- No-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 View
  47
- Side View
  49
- Bottom View
  51
- Locating Frus and Crus
  53
- Major Frus and Crus (for Thinkpad Z13 Gen 2)
  54
- Major Frus and Crus (for Thinkpad Z16 Gen 2)
  56
- Miscellaneous Parts
  58
- Connector and Cable Guide
  58
- Looking up FRU Information
  61
Chapter 7. FRU Replacement Notices

63
- Service Tool Kit
  63
- Screw Notices
  63
- Retaining Serial Numbers
  64
- Restoring the Serial Number of the System Unit
  64
- Retaining the UUID
  65
- Reading or Writing the ECA Information
  65
Chapter 8. Removing or Replacing a FRU

67
Appendix A. Notices

97
Appendix B. Abbreviation Table

99

Lenovo 21JW User Manual (70 pages)

Brand: Lenovo | Category: Laptop | Size: 18 MB

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

7
- Front View
  7
- Side View
  10
- Bottom View
  13
- Features and Specifications
  15
- USB Specifications
  15
Chapter 2. Get Started with Your Computer

17
Chapter 3. Explore Your Computer

31
Chapter 4. Secure Your Computer and Information

41
Chapter 5. Configure Advanced Settings

47
- Uefi Bios
  47
- Enter the UEFI BIOS Menu
  47
- Navigate in the UEFI BIOS Interface
  47
- Set the System Date and Time
  47
- Change the Startup Sequence
  47
- View UEFI BIOS Event Logs
  47
- Switch the Security Chip
  48
- Customize BIOS Defaults
  49
- Reset System to Factory Defaults
  49
- Recover the UEFI BIOS
  50
- Update UEFI BIOS
  50
- Install a Windows Operating System and Drivers
  50
Chapter 6. CRU Replacement

53
Chapter 7. Help and Support

59
- Frequently Asked Questions
  59
- Error Messages
  61
- Beep Errors
  62
- Self-Help Resources
  63
- Windows Label
  64
- Call Lenovo
  64
- Before You Contact Lenovo
  64
- Lenovo Customer Support Center
  65
- Purchase Additional Services
  66

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Lenovo 21JW Manuals

Lenovo 21JW Hardware Maintenance Manual (102 pages)

Table of Contents

Chapter 1. Safety Information

Chapter 2. Important Service Information

Chapter 3. General Checkout

Chapter 4. Related Service Information

Chapter 5. Special Keys

Chapter 6. Locations

Chapter 7. FRU Replacement Notices

Chapter 8. Removing or Replacing a FRU

Appendix A. Notices

Appendix B. Abbreviation Table

Lenovo 21JW 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

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