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21D8
Lenovo 21D8 Manuals
Manuals and User Guides for Lenovo 21D8. We have
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Lenovo 21D8 manuals available for free PDF download: Hardware Maintenance Manual, User Manual
Lenovo 21D8 Hardware Maintenance Manual (100 pages)
Brand:
Lenovo
| Category:
Laptop
| Size: 36.29 MB
Table of Contents
Table of Contents
3
About this Manual
5
Chapter 1. Safety Information
7
General Safety
7
Electrical Safety
7
Safety Inspection Guide
9
Handling Devices that Are Sensitive to Electrostatic Discharge
9
Grounding Requirements
10
Safety Notices (Multilingual Translations)
10
Chapter 2. Important Service Information
25
Strategy for Replacing Frus
25
Strategy for Replacing a Solid-State Drive
25
How to Use Error Message
26
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
26
Product Definition
26
FRU Identification
26
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
29
Power System Checkout
30
Checking the Ac Power Adapter
31
Checking the Built-In Battery and Operational Charging
31
Checking the Coin-Cell Battery
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
Power Management
36
Sleep Mode
36
Hibernation Mode
36
Symptom-To-FRU Index
37
Numeric Error Codes
38
Error Messages
39
Beep Errors
39
Beep Symptoms
41
LCD-Related Symptoms
41
Intermittent Problems
42
Undetermined Problems
42
Chapter 5. RAID
45
Storage Drive Requirements for RAID Levels
45
Configuring RAID with the Intel RST Configuration Utility (for Intel Models)
45
Chapter 6. Special Keys
49
Chapter 7. Locations
51
Locating Computer Controls and Connectors
51
Front View
51
Side View
53
Rear View
54
Bottom View
56
Locating Frus and Crus
57
Major Frus and Crus
58
LCD Frus
60
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
67
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 the Nano-SIM-Card Tray
70
1010 Keyboard
70
1020 Base Cover Assembly
72
1030 Speaker Assembly
73
1040 Coin-Cell Battery
74
1050 M.2 Solid-State Drive
74
1060 Wireless WAN Card (for Selected Models)
75
1070 Memory Module
76
1080 DC-IN Bracket and DC-IN Cable
77
1090 Thermal Fan Assembly
77
1100 Built-In Battery
78
1110 IO Bracket
79
1120 Fingerprint Reader, Bracket and Cable
80
1130 System Board
81
1140 Smart Card Reader and Smart Card Reader Cable
83
1150 LCD Unit
84
1160 Keyboard Bezel Assembly
86
2010 LCD Bezel Assembly
87
2020 LCD Panel and LCD Elastic Adhesive Tapes
87
2030 Camera / MIC Combo Board
90
2040 Camera/Led Cable
90
2050 LCD Hinges
91
2060 Wireless LAN / WAN Antenna Assembly
92
2070 LCD Cover Assembly
93
Appendix A. Notices
95
Appendix B. Abbreviation Table
97
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Lenovo 21D8 User Manual (70 pages)
Brand:
Lenovo
| Category:
Laptop
| Size: 18.05 MB
Table of Contents
Table of Contents
3
Discover Your Lenovo Notebook
5
Chapter 1. Meet Your Computer
7
Front View
7
Side View
9
Related Topics
10
Bottom View
11
Rear View
11
Features and Specifications
13
USB Specifications
13
Chapter 2. Get Started with Your Computer
15
Access Networks
15
Connect to Wi-Fi Networks
15
Connect to the Wired Ethernet
15
Connect to a Cellular Network (for Selected Models)
15
Turn on the Airplane Mode
16
Interact with Your Computer
16
Use the Keyboard Shortcuts
16
Use the Trackpoint Pointing Device
18
Use the Trackpad
19
Use the Touch Screen (for Selected Models)
20
Connect to an External Display
22
Chapter 3. Explore Your Computer
25
Lenovo Apps
25
The Vantage App
25
Lenovo Quick Clean / Clean Your Device
25
Smart Features (for Selected Models)
26
Color Calibration (for Selected Models)
28
Intelligent Cooling
29
Manage Power
29
Check the Battery Status
30
Charge the Computer
30
Change the Power Settings
30
Transfer Data
31
Set up a Bluetooth Connection
31
Use an SD Card or Smart Card (for Selected Models)
31
Accessories
32
Purchase Accessories
32
Chapter 4. Secure Your Computer and Information
33
Lock the Computer
33
Log in with Your Fingerprint
33
Log in with Your Face ID (for Selected Models)
34
Protect Data against Power Loss (for Selected Models)
34
UEFI BIOS Passwords
34
Password Types
34
Set, Change, and Remove a Password
35
Associate Your Fingerprints with Passwords (for Selected Models)
36
Certificate Based BIOS Management
37
Chapter 5. Configure Advanced Settings
39
Uefi Bios
39
Enter the UEFI BIOS Menu
39
Navigate in the UEFI BIOS Interface
39
Set the System Date and Time
39
Change the Startup Sequence
39
View UEFI BIOS Event Log
39
Detect Memory Retraining
40
Reset System to Factory Defaults
41
Update UEFI BIOS
41
RAID (for Intel Models Only)
42
Storage Drive Requirements for RAID Levels
42
Enter the Intel RST Configuration Utility
42
Create RAID Volumes
43
Delete RAID Volumes
43
Reset Storage Drives to Non-RAID
43
Rebuild RAID 1 Volumes
44
Install a Windows Operating System and Drivers
44
Chapter 6. CRU Replacement
47
CRU List
47
Disable Fast Startup and the Built-In Battery
47
Replace a CRU
48
Keyboard
48
Base Cover Assembly
52
Wireless WAN Card (for Selected Models)
53
Coin-Cell Battery
55
Memory Module
55
M.2 Solid-State Drive and Its Bracket
56
Chapter 7. Help and Support
59
Frequently Asked Questions
59
Error Messages
60
Beep Errors
61
Self-Help Resources
62
Windows Label
63
Call Lenovo
63
Before You Contact Lenovo
63
Lenovo Customer Support Center
64
Purchase Additional Services
65
Appendix A. Compliance Information
67
Appendix B. Notices and Trademarks
69
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