Lenovo 21FJ0005GE Manuals

Manuals and User Guides for Lenovo 21FJ0005GE. We have 2 Lenovo 21FJ0005GE manuals available for free PDF download: Hardware Maintenance Manual, User Manual

Lenovo 21FJ0005GE Hardware Maintenance Manual (116 pages)

Brand: Lenovo | Category: Laptop | Size: 58.87 MB

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

7
Chapter 2. Important Service Information

27
Chapter 3. General Checkout

29
- What to Do First
  29
- Checkout Guide
  30
- Diagnosing Problems
  30
- Quick Test Programs
  31
- UEFI Diagnostic Program
  31
- Bootable Diagnostic Programs
  31
- Power System Checkout
  32
- Checking the Ac Power Adapter
  33
- Checking the Built-In Battery and Operational Charging
  33
- Checking the Coin-Cell Battery
  33
Chapter 4. Related Service Information

35
- Reset or Restore Windows
  35
- Passwords
  35
- Power-On Password
  35
- Nvme Passwords
  36
- Supervisor Password
  36
- System Management Password
  36
- How to Remove the Power-On Password
  37
- How to Remove the Nvme Password
  37
- How to Remove the System Management Password
  37
- Power Management
  38
- Sleep Mode
  38
- Hibernation Mode
  39
- Symptom-To-FRU Index
  39
- Numeric Error Codes
  40
- Error Messages
  41
- Beep Errors
  41
- Beep Symptoms
  43
- LCD-Related Symptoms
  44
- Intermittent Problems
  45
- Undetermined Problems
  45
Chapter 5. Special Keys

47
Chapter 6. Locations

49
- Locating Computer Controls and Connectors
  49
- Front View
  49
- Side View
  51
- Bottom View
  53
- Locating Frus and Crus
  54
- Major Frus and Crus
  55
- LCD Frus and Crus
  58
- Miscellaneous Parts
  61
- Connector and Cable Guide
  61
- Looking up FRU Information
  63
Chapter 7. FRU Replacement Notices

65
- Service Tool Kit
  65
- Screw Notices
  65
- Sensor Calibration
  66
- Retaining Serial Numbers
  67
- Restoring the Serial Number of the System Unit
  67
- Retaining the UUID
  68
- Reading or Writing the ECA Information
  68
Chapter 8. Removing or Replacing a FRU

71
Appendix A. Notices

111
Appendix B. Abbreviation Table

113

Lenovo 21FJ0005GE User Manual (64 pages)

Brand: Lenovo | Category: Laptop | Size: 17.04 MB

Table of Contents
5
About this Documentation
7
Chapter 1. Meet Your Computer

9
- Front View
  9
- Side View
  11
- Bottom View
  13
- USB Connectors
  14
Chapter 2. Get Started with Your Computer

17
Chapter 3. Explore Your Computer

27
Chapter 4. Secure Your Computer and Information

31
Chapter 5. Configure Advanced Settings

35
- Uefi Bios
  35
- What Is UEFI BIOS
  35
- Enter the UEFI BIOS Menu
  35
- Navigate in the UEFI BIOS Interface
  35
- Change the Startup Sequence
  35
- Detect Memory Retraining (for Intel Models Only)
  36
- Set the System Date and Time
  36
- Recover the UEFI BIOS
  36
- Update UEFI BIOS
  36
Chapter 6. CRU Replacement

39
- CRU List
  39
- Disable the Built-In Battery
  39
- Replace a CRU
  40
- Base Cover Assembly
  40
- Wireless-WAN Card (for Selected Models)
  41
- 2242 M.2 Solid-State Drive and the Bracket
  43
- Keyboard
  44
Chapter 7. Help and Support

51
- Frequently Asked Questions
  51
- Error Messages
  52
- Beep Errors
  53
- Self-Help Resources
  54
- Call Lenovo
  55
- Before You Contact Lenovo
  55
- Lenovo Customer Support Center
  56
- Purchase Additional Services
  57
Appendix A. Compliance Information

59
Appendix B. Notices and Trademarks

61

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Lenovo 21FJ0005GE Manuals

Lenovo 21FJ0005GE Hardware Maintenance Manual (116 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 21FJ0005GE User Manual (64 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

Related Products

Lenovo Categories