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21FA
Hardware maintenance manual
Lenovo 21FA Hardware Maintenance Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
About this Manual
Chapter 1. Safety Information
General Safety
Electrical Safety
Safety Inspection Guide
Handling Devices that Are Sensitive to Electrostatic Discharge
Grounding Requirements
Safety Notices (Multilingual Translations)
Chapter 2. Important Service Information
Strategy for Replacing Frus
Strategy for Replacing a Solid-State Drive
How to Use Error Message
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
Product Definition
FRU Identification
Chapter 3. General Checkout
What to Do First
Checkout Guide
Diagnosing Problems
Quick Test Programs
UEFI Diagnostic Program
Bootable Diagnostic Programs
Power System Checkout
Checking the Ac Power Adapter
Checking the Built-In Battery and Operational Charging
Checking the Coin-Cell Battery
Chapter 4. Related Service Information
Reset or Restore Windows
Passwords
Power-On Password
Nvme Passwords
Supervisor Password
System Management Password
How to Remove the Power-On Password
How to Remove the Nvme Password
How to Remove the System Management Password
Power Management
Sleep Mode
Hibernation Mode
Symptom-To-FRU Index
Numeric Error Codes
Error Messages
Beep Errors
No-Beep Symptoms
LCD-Related Symptoms
Intermittent Problems
Undetermined Problems
Chapter 5. RAID
Storage Drive Requirements for RAID Levels
Configuring RAID with the Intel RST Configuration Utility
Enter the Intel RST Configuration Utility
Create RAID Volumes
Delete RAID Volumes
Reset Storage Drives to Non-RAID
Rebuild RAID 1 Volumes
Chapter 6. Special Keys
Chapter 7. Locations
Locating Computer Controls and Connectors
Front View
Side View
Rear View
Bottom View
Locating Frus and Crus
Major Frus and Crus
LCD Frus and Crus
Miscellaneous Parts
Connector and Cable Guide
Looking up FRU Information
Chapter 8. FRU Replacement Notices
Service Tool Kit
Screw Notices
Retaining Serial Numbers
Restoring the Serial Number of the System Unit
Retaining the UUID
Reading or Writing the ECA Information
Chapter 9. Removing or Replacing a FRU
General Guidelines
Before Servicing the Computer
Disabling the Built-In Battery
Removing the Nano-SIM Card and Tray (for Selected Models)
Removing the SD Card (if Any)
1010 Service Door
1020 Keyboard
1030 Service Bracket
1040 Wireless WAN Card (for Selected Models)
1050 Memory Module
For Access, Remove this FRU
1020 Keyboard
1060 M.2 2280 Solid-State Drive
Step Screw (Quantity)
Step Color
Black
M2 × 3 MM, Flat-Head, Nylon-Coated (1) Black
Torque
(1.85 Kgf-CM)
1070 Base Cover Assembly
(1.85 Kgf-CM)
1080 Thermal Fan Assembly
1090 Dummy GPU Board Cable (for Models Without Discrete GPU)
1100 GPU Board or Dummy GPU Board
1110 I/O Board and Cable
1120 Built-In Battery
1130 Coin-Cell Battery
1140 NFC Board and Cable (for Selected Models)
1150 Keyboard Bezel Assembly
1160 Power Button with Fingerprint Reader and Bracket
1170 Trackpad and Trackpad Cable
1180 Smart Card Reader and Cable (for Selected Models)
1190 Speaker
1200 System Board and Beeper
1210 DC-In Cable and Bracket
1220 Wireless WAN Antenna Assembly (for Selected Models)
1230 Hinge Caps
1240 LCD Unit
1250 Chassis Assembly
2010 LCD Strip Cover (for Touch Models)
2020 LCD Bezel (for Non-Touch Models)
2030 LCD Panel and LCD Cable
2040 LCD Hinges
2050 PMIC Board (for Touch Models)
(For Selected Models)
2070 Wireless Antenna Assembly
2080 LCD Cover Assembly
Appendix A. Notices
Appendix B. Abbreviation Table
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Strategy for Replacing a Solid-State Drive
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1050 Memory Module
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ThinkPad P16 Gen 2
Hardware Maintenance Manual
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