Lenovo 21KY Manuals

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

Lenovo 21KY Hardware Maintenance Manual

Lenovo 21KY Hardware Maintenance Manual (118 pages)

Brand: Lenovo | Category: Laptop | Size: 46 MB

Table of Contents

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
- Checking the Coin-Cell Battery
  32
Chapter 4. Related Service Information

33
- Reset or Restore Windows
  33
- Use Lenovo Recovery Options
  33
- Use Window Recovery Options
  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
  37
- Symptom-To-FRU Index
  37
- Numeric Error Codes
  38
- Error Messages
  39
- Battery-Charge LED Indicator Diagnosis
  39
- Beep Symptoms
  41
- LCD-Related Symptoms
  42
- Intermittent Problems
  43
- Undetermined Problems
  43
Chapter 5. RAID

45
Chapter 6. Special Keys

49
Chapter 7. Locations

51
- Locating Computer Controls and Connectors
  51
- Front View
  51
- Side View
  52
- Rear View
  53
- Bottom
  53
- Locating Frus and Crus
  55
- Major Frus and Crus
  56
- LCD Frus and Crus
  59
- 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
  68
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 Nano-SIM Card Tray
  70
- Keyboard
  70
- Base Cover Assembly
  72
- Applying Labels to the Base Cover Assembly
  73
- Memory Module
  74
- M.2 Solid-State Drive, Bracket and Thermal Pad
  75
- Built-In Battery
  77
- Wireless WAN Card (for Selected Models)
  78
- Type 1
  79
- Type 2
  80
- Thermal Fan Assembly
  81
- I/O Bracket
  83
- RJ45 Bracket
  83
- Coin-Cell Battery
  84
- Keyboard Bezel Assembly
  85
- Power Button with Fingerprint Reader and Bracket
  87
- Trackpad and Trackpad Cable
  89
- NFC Cable and NFC Board (for Selected Models)
  91
- Smart Card Reader and Smart Card Reader Cable (for Selected Models)
  92
- Speaker Assembly
  93
- Wireless WAN Antennas (for Selected Models)
  94
- System Board
  96
- Replace the System Board
  97
- How to Configure Keyboard Language in UEFI BIOS
  98
- LCD Hinge Caps
  98
- LCD Unit
  99
- Chassis Assembly
  101
- LCD Bezel
  101
- LCD Panel and Elastic Adhesive Tapes
  102
- Removal Steps
  102
- Installation Steps
  104
- How to Install New Color Profiles for LCD Panel with the Factory Color Calibration Feature
  105
- LCD Hinges
  105
- Camera-And-Microphone Module and Cable
  106
- Wireless LAN and Wireless WAN MIMO Antenna Assembly
  108
- Antenna Locations
  110
- LCD Cover Assembly
  111
Appendix A. Notices

113
Appendix B. Abbreviation Table

115

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Lenovo 21KY User Manual

Lenovo 21KY User Manual (60 pages)

Brand: Lenovo | Category: Laptop | Size: 22 MB

Table of Contents

Table of Contents
3
About this Documentation
5
Chapter 1. Meet Your Computer
7
Front View
7
Side View
9
Rear View
10
Bottom View
11
USB Connectors
12
Chapter 2. Get Started with Your Computer
15
Get Started with Your Desktop
15
Manage Networks
15
Connect to Wi-Fi Networks
15
Connect to a Cellular Network (for Selected Models)
16
Airplane Mode
16
Interact with Your Computer
17
Use the Camera
17
Use the Keyboard Shortcuts
17
Use the Trackpoint Pointing Device
18
Use the Trackpad
19
Use the Multi-Touch Screen (for Selected Models)
20
Connect to an External Display
21
Chapter 3. Explore Your Computer
23
Use the Intelligent Cooling Feature
23
Use the P-To-P 2.0 Charging Function
23
Set the Power Plan
23
Connect to a Bluetooth-Enabled Device
24
Enabling Nvidia Proprietary Drivers in Fedora (for Selected Models)
24
Chapter 4. Secure Your Computer and Information
25
Lock the Computer
25
Use the Fingerprint Reader (for Selected Models)
25
Use Passwords
26
Password Types
26
Set, Change, and Remove a Password
27
Use Power Loss Protection Function (for Selected Models)
28
Chapter 5. Configure Advanced Settings
29
Uefi Bios
29
What Is UEFI BIOS
29
Enter the UEFI BIOS Menu
29
Navigate in the UEFI BIOS Interface
29
Change the Startup Sequence
29
Detect Memory Retraining (for Intel Models Only)
30
Set the System Date and Time
30
Recover the UEFI BIOS
30
Update UEFI BIOS
30
Chapter 6. CRU Replacement
33
CRU List
33
Before You Replace any CRU
33
Disable Fast Startup
34
Disable the Built-In Battery
34
Replace a CRU
34
Base Cover Assembly
34
Wireless WAN Card (for Selected Models)
36
Memory Module
38
2280 M.2 Solid-State Drive
39
Keyboard
40
Remove the Keyboard
41
Install the Keyboard
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
Certification-Related Information
53
Operating Environment
54
Appendix B. Notices and Trademarks
57

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