Lenovo 21FW Manuals

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

Lenovo 21FW Hardware Maintenance Manual (100 pages)

Brand: Lenovo | Category: Laptop | Size: 42.64 MB

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

7
Chapter 2. Important Service Information

25
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
  32
- Power System Checkout
  32
- Checking the Ac Power Adapter
  33
- Checking the 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 Password
  35
- Supervisor Password
  36
- System Management Password
  36
- How to Remove the Power-On Password
  36
- 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
- No-Beep Symptoms
  43
- LCD-Related Symptoms
  43
- Intermittent Problems
  44
- Undetermined Problems
  44
Chapter 5. Use the Keyboard Shortcuts

47
Chapter 6. Locations

49
- Computer Controls, Connectors, and Indicators
  49
- Front View
  49
- Side View
  51
- Bottom View
  52
- Locating Frus and Crus
  52
- Major Frus
  54
- Miscellaneous Parts and Other Frus
  56
- Connector and Cable Guide
  56
- Looking up FRU Information
  60
Chapter 7. FRU Replacement Notices

61
- Service Tool Kit
  61
- Screw Notices
  61
- Retaining Serial Numbers
  62
- Restoring the Serial Number of the System Unit
  62
- Retaining the UUID
  63
- Reading or Writing the ECA Information
  64
Chapter 8. Removing or Replacing a FRU

65
Appendix A. Notices

97

Lenovo 21FW User Manual (58 pages)

Brand: Lenovo | Category: Laptop | Size: 14.86 MB

Table of Contents
3
About this Documentation
5
Chapter 1. Meet Your Computer

7
- Front View
  7
- Side View
  9
- Bottom View
  11
- USB Connectors
  12
Chapter 2. Get Started with Your Computer

13
- Get Started with Your Desktop
  13
- Manage Networks
  13
- Connect to Wi-Fi Networks
  13
- Connect to a Cellular Network (for Selected Models)
  14
- Airplane Mode
  14
- Interact with Your Computer
  15
- Use the Camera
  15
- Use the Keyboard Shortcuts
  15
- Use the Trackpoint Pointing Device
  16
- Use the Trackpad
  17
- Use the Multi-Touch Screen (for Selected Models)
  18
- Connect to an External Display
  20
Chapter 3. Explore Your Computer

23
Chapter 4. Secure Your Computer and Information

27
Chapter 5. Configure Advanced Settings

31
- Uefi Bios
  31
- What Is UEFI BIOS
  31
- Enter the UEFI BIOS Menu
  31
- Navigate in the UEFI BIOS Interface
  31
- Change the Startup Sequence
  31
- Detect Memory Retraining (for Intel Models Only)
  32
- Set the System Date and Time
  32
- Recover the UEFI BIOS
  32
- Update UEFI BIOS
  32
Chapter 6. CRU Replacement

35
- CRU List
  35
- Disable the Built-In Battery
  35
- Replace a CRU
  36
- Base Cover Assembly
  36
- Memory Module
  37
- Solid-State Drive and M.2 Solid-State Drive Bracket (for Selected Models)
  39
- Speaker Assembly
  41
- Wireless-WAN Card (for Selected Models)
  42
Chapter 7. Help and Support

45
- Frequently Asked Questions
  45
- Error Messages
  46
- Beep Errors
  47
- Self-Help Resources
  48
- Call Lenovo
  49
- Before You Contact Lenovo
  49
- Lenovo Customer Support Center
  50
- Purchase Additional Services
  51
Appendix A. Compliance Information

53
Appendix B. Notices and Trademarks

55

Lenovo Categories

Laptop

Desktop Server

Monitor Tablet

More Lenovo Manuals

Lenovo 21FW Manuals

Lenovo 21FW 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. Use the Keyboard Shortcuts

Chapter 6. Locations

Chapter 7. FRU Replacement Notices

Chapter 8. Removing or Replacing a FRU

Appendix A. Notices

Lenovo 21FW User Manual (58 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