Lenovo 21QJ00DRGE Manuals

Manuals and User Guides for Lenovo 21QJ00DRGE. We have 2 Lenovo 21QJ00DRGE manuals available for free PDF download: Hardware Maintenance Manual, Manual

Lenovo 21QJ00DRGE Hardware Maintenance Manual (160 pages)

Brand: Lenovo | Category: Laptop | Size: 10 MB

Table of Contents
5
About this Manual
7
Chapter 1. Safety Information
9
General Safety
9
Electrical Safety
9
Safety Inspection Guide
11
Handling Devices that Are Sensitive to Electrostatic Discharge
11
Grounding Requirements
12
Safety Notices (Multilingual Translations)
12
Chapter 2. Important Service Information
27
Strategy for Replacing Frus
27
Strategy for Replacing a Solid-State Drive
27
How to Use Error Message
28
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
28
Product Definition
28
FRU Identification
28
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
32
Checking the Built-In Battery and Operational Charging
33
Checking the Coin-Cell Battery
33
Chapter 4. Related Service Information
35
Reset or Restore Windows
35
Use Lenovo Recovery Options
35
Use Window Recovery Options
35
Passwords
35
Power-On Password
36
Nvme Passwords
36
Supervisor Password
36
System Management Password
36
How to Remove the Power-On Password
37
How to Remove the Nvme Password
37
How to Remove the System Management Password
38
Enable AMD Integrated Management Technology (for Selected Models)
38
Power Management
39
Sleep Mode
39
Hibernation Mode
39
Symptom-To-FRU Index
40
Numeric Error Codes
40
Error Messages
41
Battery-Charge LED Indicator Diagnosis
41
No-Beep Symptoms
43
LCD-Related Symptoms
44
Intermittent Problems
45
Undetermined Problems
45
Lenovo Memory Self Repair (for Intel Models Only)
46
Chapter 5. Special Keys
47
Chapter 6. Locations
49
Locating Computer Controls and Connectors
49
Front View
49
Side View
53
Bottom View
55
Locating Frus and Crus
57
Major Frus and Crus
58
LCD Frus and Crus
64
Miscellaneous Parts
68
Connector and Cable Guide
68
Looking up FRU Information
72
Chapter 7. FRU Replacement Notices
73
Service Tool Kit
73
Screw Notices
73
Retaining Serial Numbers
74
Restoring the Serial Number of the System Unit
74
Retaining the UUID
75
Reading or Writing the ECA Information
76
Chapter 8. Removing or Replacing a FRU
77
General Guidelines
77
Before Servicing the Computer
77
Disabling the Built-In Battery
77
Removing the Nano-SIM Card and Nano-SIM-Card Tray
78
Keyboard
78
Remove the Keyboard
78
Install the Keyboard
81
Base Cover Assembly
83
Memory Module Shielding Cap (for Selected Models)
87
Memory Module (for Selected Models)
89
Wireless WAN Module and Wireless WAN Module Bracket (for Selected 4G Models)
91
Wireless WAN Module and Wireless WAN Module Bracket (for Selected 5G Models)
93
M.2 Solid-State Drive and M.2 Solid-State Drive Bracket
95
Built-In Battery
97
Speaker Assembly
99
Coin-Cell Battery
101
Dummy Smart Card Reader
102
Smart Card Reader and Cable
103
Trackpad and Trackpad Cable
105
Removal Steps
105
Installation Steps
108
NFC Card and Cables
113
I/O Bracket
114
Thermal Fan Assembly
115
USB Board Cable, USB Board, and RJ45 Door Bracket
118
Power Button with or Without Fingerprint Reader
121
Power Button Bracket
123
Wireless WAN Antennas (for Selected Models)
123
System Board
125
Replace the System Board
126
How to Configure Keyboard Language in UEFI BIOS
128
How to Input the Product Information with Thinkpad System Board Self Repair Tool
129
LCD Unit
129
Keyboard Assembly
132
LCD Bezel Sheet and LCD Bezel
133
LCD Hinges
134
LCD Panel and Elastic Adhesive Tapes
136
Removal Steps
137
Installation Steps
139
How to Install New Color Profiles for LCD Panel with the Factory Color Calibration Feature
141
LCD Cable
141
Camera-And-Microphone Module and Cable
142
Wireless LAN Antenna Assembly
145
Antenna Locations
147
LCD Cover Assembly
150
Appendix A. Notice for USB Connector Name Update
153
Appendix B. Notices
155
Appendix C. Abbreviation Table
157

Lenovo 21QJ00DRGE Manual (16 pages)

Brand: Lenovo | Category: Laptop | Size: 1 MB

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Lenovo 21QJ00DRGE Hardware Maintenance Manual (160 pages)

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Lenovo 21QJ00DRGE Manual (16 pages)

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