Lenovo 21BX001LGE Manuals

Manuals and User Guides for Lenovo 21BX001LGE. We have 1 Lenovo 21BX001LGE manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21BX001LGE Hardware Maintenance Manual

Lenovo 21BX001LGE Hardware Maintenance Manual (96 pages)

Brand: Lenovo | Category: Laptop | Size: 39.25 MB

Table of Contents

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

7
Chapter 2. Important Service Information

27
Chapter 3. General Checkout

29
Chapter 4. Related Service Information

33
- Reset or Restore Windows
  33
- Passwords
  33
- Power-On Password
  33
- Supervisor Password
  33
- System Management Password
  34
- How to Remove the Power-On Password
  34
- How to Remove the System Management Password
  35
- Power Management
  35
- Sleep Mode
  35
- Hibernation Mode
  36
- Symptom-To-FRU Index
  36
- Numeric Error Codes
  37
- Error Messages
  38
- No-Beep Symptoms
  38
- LCD-Related Symptoms
  39
- Intermittent Problems
  40
- Undetermined Problems
  40
Chapter 5. Special Keys

41
Chapter 6. Locations

43
- Locating Computer Controls and Connectors
  43
- Front View
  43
- Side View
  45
- Bottom View
  46
- Rear View
  47
- Locating Frus and Crus
  48
- Major Frus and Crus
  49
- Miscellaneous Parts
  51
- Connector and Cable Guide
  52
- Looking up FRU Information
  53
Chapter 7. FRU Replacement Notices

55
- Service Tool Kit
  55
- Screw Notices
  55
- Retaining Serial Numbers
  56
- Restoring the Serial Number of the System Unit
  56
- Retaining the UUID
  57
- Reading or Writing the ECA Information
  57
Chapter 8. Removing or Replacing a FRU

59
Appendix A. Notices

91
Appendix B. Abbreviation Table

93

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