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21EX0038GE
Lenovo 21EX0038GE Manuals
Manuals and User Guides for Lenovo 21EX0038GE. We have
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Lenovo 21EX0038GE manuals available for free PDF download: Hardware Maintenance Manual, Quick Start Manual
Lenovo 21EX0038GE Hardware Maintenance Manual (122 pages)
Brand:
Lenovo
| Category:
Laptop
| Size: 56.49 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
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
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
42
Intermittent Problems
43
Undetermined Problems
43
Chapter 5. Special Keys
45
Chapter 6. Locations
47
Locating Computer Controls and Connectors
47
Front
47
Left and Right
49
Bottom
51
Locating Frus and Crus
52
Major Frus and Crus
53
LCD Frus and Crus
57
Miscellaneous Parts
62
Connector and Cable Guide
63
Looking up FRU Information
65
Chapter 7. FRU Replacement Notices
67
Service Tool Kit
67
Screw Notices
67
Sensor Calibration (for Thinkpad X13 Yoga Gen 4 Only)
68
Retaining Serial Numbers
69
Restoring the Serial Number of the System Unit
69
Retaining the UUID
70
Reading or Writing the ECA Information
70
Chapter 8. Removing or Replacing a FRU
73
General Guidelines
73
Before Servicing the Computer
73
Disabling the Built-In Battery
73
Removing the Nano-SIM-Card and Nano-SIM-Card Tray (for Selected Models)
74
1010 Lenovo Integrated Pen (for Selected Thinkpad X13 Yoga Gen 4 Models)
74
1020 Base Cover Assembly
75
Gen 4 Models)
76
1040 M.2 Solid-State Drive, Bracket, and Thermal Pad
78
1050 Wireless WAN Card, Wireless WAN Card Bracket and Wireless WAN Card Thermal Pad (for Selected Models)
79
1060 Cable Guide (for Thinkpad X13 Gen 4 Only)
81
1070 Built-In Battery
82
1080 Thermal Fan Assembly
83
1090 Speaker Assembly
84
1100 Coin-Cell Battery
85
1110 Smart Card Reader-Trackpad-Nfc Cable (for Selected Models)
86
1130 Trackpad and Trackpad Cable
87
1140 NFC Card
90
1150 Smart Card Reader (for Selected Models)
91
1160 Dummy Smart Card Reader (for Selected Models)
93
1170 Wireless WAN Antennas (for Selected Models)
94
1180 Pen Charger Cable (for Selected Thinkpad X13 Yoga Gen 4 Models)
95
1190 System Board
96
1200 Power Board and Power Button with or Without Fingerprint Reader
98
1210 Cable Guide for Coin-Cell Battery
99
2000 LCD Unit
101
2010 Keyboard Assembly
103
2020 Strip Cover (for Thinkpad X13 Yoga Gen 4 Only)
104
Thinkpad X13 Gen 4 Only)
104
2040 LCD Hinges
105
2050 LCD Panel, LCD Cable and Elastic Adhesive Tapes
106
2060 Camera-And-Microphone Module and Cable (for Selected Models)
110
2070 Camera Shutter or Dummy Camera Shutter
112
2080 Wireless LAN Antennas (for Selected Models)
112
2090 LCD Cover Assembly
115
Appendix A. Notices
117
Appendix B. Abbreviation Table
119
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Lenovo 21EX0038GE Quick Start Manual (12 pages)
Brand:
Lenovo
| Category:
Laptop
| Size: 0.85 MB
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