Lenovo 21T0003NGE Hardware Maintenance Manual
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Lenovo 21T0003NGE Hardware Maintenance Manual

Lenovo 21T0003NGE Hardware Maintenance Manual

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Hardware Maintenance Manual
ThinkPad E14 Gen 7 and ThinkPad E16 Gen 3

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Summary of Contents for Lenovo 21T0003NGE

  • Page 1 Hardware Maintenance Manual ThinkPad E14 Gen 7 and ThinkPad E16 Gen 3...
  • Page 2 First Edition (April 2025) © Copyright Lenovo 2025. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-...

  • Page 3: Table Of Contents

    Reset or restore Windows ... Reading or writing the ECA information ..Use Lenovo recovery options..Use Window recovery options ..
  • Page 4 Built-in battery ....LCD hinges ....Wireless LAN card ....Camera module .

  • Page 5: About This Manual

    Some statements in this manual might not be applicable to the computer. • Before servicing a product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 19. © Copyright Lenovo 2025...
  • Page 6 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    • Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers. Electrical safety Observe the following rules when working on electrical equipment. © Copyright Lenovo 2025...
  • Page 8 Important: • Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. • Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges (ESD).

  • Page 9: Safety Inspection Guide

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-ThinkPad / non-Lenovo alterations. Use good judgment as to the safety of any non-ThinkPad / non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

  • Page 10: Grounding Requirements

    2. Ensure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people. •...
  • Page 11 DANGER DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO DANGER DANGER Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER VORSICHT VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...

  • Page 25: Chapter 2. Important Service Information

    – “FRU identification” on page 20 Important: • Advise customers to contact the Lenovo Customer Support Center if they need any assistance in obtaining or installing any software fixes, drivers, and UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at: https://pcsupport.lenovo.com/supportphonelist...

  • Page 26: How To Use Error Message

    Dynamic Configure To Order (CTO) model This model provides the ability for a customer to configure a Lenovo solution from a Web Site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code.

  • Page 27: Chapter 3. General Checkout

    Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list: © Copyright Lenovo 2025...

  • Page 28: Checkout Guide

    Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.

  • Page 29: Quick Test Programs

    Vantage app installed. To download and install a quick test program, go to , and follow the instructions https://www.lenovo.com/diags on the Web site. To run a test using quick test program, do the following: Step 1.

  • Page 30: Bootable Diagnostic Programs

    If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic program enables you to view system information and test some hardware devices in your computer, such as memory, storage devices, the LCD, and system board buses.

  • Page 31: Checking The Ac Power Adapter

    Checking the built-in battery and operational charging This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized manufacturer. The system does not support unauthorized batteries or batteries designed for other systems.

  • Page 32: Checking The Coin-Cell Battery

    Step 4. Check the battery status icon again. If the same error still exists, replace the system board. Checking the coin-cell battery To check the coin-cell battery, do the following: Step 1. Power off the computer, and unplug the ac power adapter from it. Step 2.

  • Page 33: Chapter 4. Related Service Information

    When the latest maintenance diskette and the system program service diskette become available, they will be posted on: https://support.lenovo.com Reset or restore Windows To reset or restore Windows, refer to the information below： Use Lenovo recovery options Step 1. Go to https://support.lenovo.com/HowToCreateLenovoRecovery Step 2.

  • Page 34: Power-On Password

    The system management password can also protect the system information stored in UEFI BIOS like a supervisor password, but it has lower authority by default. The system management password can be set through the UEFI BIOS menu or through Windows Management Instrumentation (WMI) with the Lenovo client-management interface.

  • Page 35: How To Remove The Power-On Password

    Lenovo cannot reset your passwords or recover data from the storage drive. You can contact a Lenovo authorized service provider to have the storage drive replaced. A fee will be charged for parts and service. If the storage drive is a CRU (Customer Replaceable Unit), you can also contact Lenovo to purchase...

  • Page 36: How To Remove The System Management Password

    a new storage drive to replace the old one by yourself. To check whether the storage drive is a CRU and the relevant replacement procedure, see “Major FRUs and CRUs” on page 48. How to remove the system management password To remove a system management password, do the following: How to remove the system management password if no supervisor password has been set...

  • Page 37: Hibernation Mode

    • After a period of inactivity specified in power plan settings • When the battery power is low To resume the computer from sleep mode, press the power button. Also, in either of the following events, the computer automatically returns from sleep mode and resumes operation: •...

  • Page 38: Numeric Error Codes

    This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next. A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number.

  • Page 39: Error Messages

    The battery installed is not supported by this system and Replace the battery. will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the Esc key to continue. This system does not support batteries that are not Replace the battery.
  • Page 40 • We recommend that you speak to our Customer Support Center before attempting to service the computer yourself so that you can be directed to the correct documentation and repair information. It might be recommended to have a Lenovo-authorized service provider repair your computer depending on the complexity of the error or fault.

  • Page 41: Beep Symptoms

    Blinking patterns Error codes Solutions 0283: PCI resource error 1. Remove PCIe devices (the M.2 card, PCIe card, and so on) (service provider only). 2. If step 1 does not work, replace the system board (service provider only). 0284: TCG-compliant functionality-related Replace the system board (service provider error (might be the BIOS code validation only).

  • Page 42: Lcd-Related Symptoms

    If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.

  • Page 43: Intermittent Problems

    Step 1. Ensure that the computer is connected to ac power. Then, press the power button for about seven seconds to turn off the computer. Step 2. Press Fn, left Ctrl, and the power button at the same time. If the computer displays five solid colors in sequence across the entire screen, it indicates that the LCD functions normally.

  • Page 44: Lenovo Memory Self Repair (For Intel Models Only)

    LCD assembly Lenovo Memory Self Repair (for Intel models only) Lenovo Memory Self Repair (hereafter referred to as repair tool) enables you to repair memory single-bit or single-row failure with internal redundant resources. It is recommended that you use the repair tool in the following situations: •...

  • Page 45: Chapter 5. Special Keys

    Print screen. Open Snipping Tool. ® Open Microsoft Phone Link. Launch Lenovo AI Now. Notes: • This app is available in some countries and regions. • The function varies by countries or regions. Other general keyboard shortcuts Key / key combination Function description •...
  • Page 46 Key / key combination Function description Go to beginning. Go to end. Fn+Tab Open Magnifier. Note: Press the Windows logo key+Esc to turn it off. Fn+4 Enter sleep mode. Fn+B Break operation. Fn+K Scroll contents. Fn+P Pause operation. Fn+S Send system request. Fn+N Open system information Window.

  • Page 47: Chapter 6. Locations

    Chapter 6. Locations Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup Front Have a quick glance at the front view of your computer. ThinkPad E14 Gen 7 © Copyright Lenovo 2025...
  • Page 48 Description Description Item Item Microphone Infrared camera / Camera Webcam privacy shutter Touch screen* ® Power button with fingerprint reader* TrackPoint pointing stick Speaker TrackPoint Three Buttons Trackpad * for selected models ThinkPad E16 Gen 3 Hardware Maintenance Manual...

  • Page 49: Left And Right

    Description Description Item Item Microphone Infrared camera / Camera Webcam privacy shutter Touch screen* ® Power button with fingerprint reader* TrackPoint pointing stick Trackpad TrackPoint Three Buttons * for selected models Webcam privacy shutter Slide the webcam privacy shutter to cover or uncover the camera lens. It is designed to protect your privacy. Left and Right Have a quick glance at ports on both sides of your computer.
  • Page 50 Description Description Item Item USB-C power connector (Thunderbolt™ USB-A connector (USB 5Gbps) USB-A connector (USB 10Gbps, Always On USB) Audio connector AMD models Description Description Item Item Security slot HDMI™ connector USB-C power connector (USB 5Gbps) Ethernet connector USB-A connector (USB 5Gbps) USB-C power connector (USB4 40Gbps) USB-A connector (USB 10Gbps, Always On USB)

  • Page 51: Bottom

    rate using the various USB connectors on this device will vary and will be slower than the data rate listed in the connector name or below for each corresponding device. USB device Data rate (Gbps) Thunderbolt 3 Thunderbolt 4 Bottom ThinkPad E14 Gen 7 ThinkPad E16 Gen 3 Description...
  • Page 52 2. Insert a straightened paper clip into the hole to cut off power supply temporarily. 3. Connect your computer to ac power and then turn on your computer. If your computer is still no response, you can call Lenovo Customer Support Center to get further help. CAUTION: When the computer is operating, it should be placed on a hard and flat surface with its bottom area not in contact with user’s bare skin.

  • Page 53: Locating Frus And Crus

    Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at .

  • Page 54: Major Frus And Crus

    Major FRUs and CRUs ThinkPad E14 Gen 7/ ThinkPad E16 Gen 3 Hardware Maintenance Manual...
  • Page 55 Notes: • Depending on the computer model, your computer might look different from the illustration above. • The Lenovo factory recovery USB key is used to restore the Microsoft Windows operating system. It might not come with the computer, and a user might order it from https://pcsupport.lenovo.com/...

  • Page 56: Lcd Frus And Crus

    LCD FRUs and CRUs Table 6. LCD FRUs and CRUs FRU description Self-service Optional-service LCD bezel LCD panel EDP cable assembly Wireless antenna assembly Hardware Maintenance Manual...

  • Page 57: Miscellaneous Parts

    • Spec Connector and cable guide This topic provides information to help Lenovo authorized service technicians identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs and CRUs” on page 48 and “LCD FRUs and CRUs” on page 50.
  • Page 58 Note: Depending on your computer model, some connectors or cables might not be available. System board connectors and cables Table 8. System board connector and cable guide Internal cable required Connector/feature Cable connection EDP cable Touch panel connector (internal) Connect one end to the LCD connector and the other end to this connector.
  • Page 59 Table 8. System board connector and cable guide (continued) Internal cable required Connector/feature Cable connection Connect USB-compatible devices Intel models: USB-A connector (USB 10Gbps, Always On USB) to this connector. (external) AMD models: USB-A connector (USB 10Gbps, Always On USB) (external) Audio jack (external) Connect headphones or a headset...
  • Page 60 I/O board connectors (For ThinkPad E14 Gen 7) Table 9. I/O board connector Connector/feature Internal cable required Cable connection Fingerprint reader connector Fingerprint reader connector Connect fingerprint reader (internal) connector to this connector. I/O board cable connector (internal) I/O board cable Connect I/O board cable to this connector.

  • Page 61: Looking Up Fru Information

    Connect a USB-compatible device (external) to this connector. Ethernet connector (external) Connect a wired network cable device to this connector. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup Chapter 6 Locations...
  • Page 62 Hardware Maintenance Manual...

  • Page 63: Chapter 7. Fru Replacement Notices

    • Keep the screw kit in your tool bag. For the part number of the screw kit, go to: https://support.lenovo.com/partslookup Tighten screws as follows: • Plastic to plastic Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part. © Copyright Lenovo 2025...

  • Page 64: Retaining Serial Numbers

    Connect a USB memory key to the computer. Step 2. Go to and follow the instructions on the screen to https://www.lenovo.com/maintenanceutilities create a Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. Step 3. Restart the computer. Hardware Maintenance Manual...

  • Page 65: Retaining The Uuid

    Go to and follow the instructions on the screen to https://www.lenovo.com/maintenanceutilities create a Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. Step 3. Restart the computer. Step 4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

  • Page 66: Reading Or Writing The Eca Information

    To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key. Step 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer. Step 2.

  • Page 67: Chapter 8. Removing Or Replacing A Fru

    Click Power Options, and then click Choose what the power buttons do on the left pane. Step 3. Click Change settings that are currently unavailable at the top. Step 4. If prompted by User Account Control (UAC), click Yes. © Copyright Lenovo 2025...

  • Page 68: Base Cover Assembly

    Step 5. Clear the Turn on fast startup check box, and then click Save changes. To disable the built-in battery Step 1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS menu. Select Config ➙...

  • Page 69: Applying Labels To The Base Cover Assembly

    • ThinkPad E16 Gen 3 Step 2. Install the base cover assembly in reverse order. If the computer does not start up after you reinstall the base cover assembly, disconnect the ac power adapter and then reconnect it to the computer. Applying labels to the base cover assembly Notes: •...
  • Page 70 Item Item Asset tag label Service QR code Genuine Microsoft label S/N label USA RTC Battery warning label Country label GEO label China CECP label • ThinkPad E16 Gen 3 Item Item Asset tag label Service QR code Genuine Microsoft label S/N label Hardware Maintenance Manual...

  • Page 71: Memory Module

    Item Item USA RTC Battery warning label Country label GEO label China CECP label Memory module Follow the instructions to replace the memory module. Before you start, read Generic Safety and Compliance Notices For access, remove this FRU: “Base cover assembly” on page 62. Tool needed: •...

  • Page 72: M.2 Solid-State Drive And M.2 Solid-State Drive Bracket

    Note: Memory module replacement might cause memory retraining during POST. When memory retraining occurs, the screen might be blank. You might see the LED indicators on Esc, F1, and F4 blinking sequentially to indicate the progress. Do not press the power button to interrupt the process. Wait a few minutes until the logo screen is displayed.

  • Page 73: Built-In Battery

    Step 2. Install the M.2 solid-state drive and its bracket as shown below. Fasten the captive screw to secure the M.2 solid-state drive. Built-in battery Before you start, read Generic Safety and Compliance Notices CAUTION: Chapter 8 Removing or replacing a FRU...
  • Page 74 Batteries supplied by Lenovo for use with your product have been tested for compatibility and should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a disassembled or modified battery may not be covered by warranty.

  • Page 75: Wireless Lan Card

    Loosen the three captive screws and remove the battery as shown below. Step 2. Before installing the built-in battery, thoroughly check the battery compartment and ensure that there are no foreign or sharp objects that could cause damage to the battery. Step 3.

  • Page 76: Thermal Fan Assembly (For Selected Models)

    • Phillips head screwdriver Step 1. Remove the wireless LAN module as shown below. Step Screw (quantity) Color Torque M2 × 2 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Step 2. When installing: Plug the gray cable into the main connector, and the black cable into the auxiliary connector on the module.
  • Page 77 Step Screw (quantity) Color Torque M2 × L3.5mm, flat-head, nylon-coated (3) Black 0.294 Nm (3 kgf-cm) Step 2. Install the thermal fan assembly in reverse order. When installing: • Do not press the top of the fan cover and the fan hub. •...

  • Page 78: Fan (For Selected Models)

    • Tighten the screws in ascending order by following the alphabet marked beside each screw. Otherwise, the system board might get damaged. • Ensure that the connector is attached firmly. Fan (for selected models) For access, remove this FRU: • “Base cover assembly” on page 62 Tool needed: •...

  • Page 79: Thermal Assembly (For Selected Models)

    Step 2. Install the fan in reverse order. Notes: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. Thermal assembly (for selected models) For access, remove these FRUs in order: •...

  • Page 80: I/O Board And I/O Board Cable

    Step 2. Install the thermal assembly in reverse order. Notes: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. I/O board and I/O board cable Before you start, read Generic Safety and Compliance Notices For access, remove this FRU: •...
  • Page 81 Chapter 8 Removing or replacing a FRU...
  • Page 82 Step Screw (quantity) Color Torque M2.5 × L6 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3 kgf-cm) M2 × L2.5 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) • ThinkPad E16 Gen 3 Hardware Maintenance Manual...

  • Page 83: Power Button With Or Without Fingerprint Reader And Fingerprint Reader Cable

    Step Screw (quantity) Color Torque M2.5 × L6 mm, flat-head, nylon-coated (3) Black 0.294 Nm (3 kgf-cm) M2 × L2 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Step 2. Install the I/O board and I/O board cable in reverse order. Power button with or without fingerprint reader and fingerprint reader cable Follow the instructions to replace the power board and power button with or without fingerprint reader.

  • Page 84: I/O Bracket

    Before you start, read Generic Safety and Compliance Notices For access, remove this FRU: “Base cover assembly” on page 62 Step 1. Remove the power board and power button with or without fingerprint reader as shown below. Step 2. Install the power board and power button with or without fingerprint reader in reverse order. I/O bracket Before you start, read Generic Safety and Compliance Notices...
  • Page 85 Step Screw (quantity) Color Torque Black 0.294 Nm M2.5 × L6 mm, flat-head, nylon-coated (1) (3 kgf-cm) 0.181 Nm M2 × L5 mm, flat-head, nylon-coated (1) Sliver (1.85 kgf-cm) • ThinkPad E16 Gen 3 Step Screw (quantity) Color Torque M2 × L5 mm, flat-head, nylon-coated (2) Sliver 0.181 Nm (1.85 kgf-cm)

  • Page 86: Speaker Assembly

    Before you start, read Generic Safety and Compliance Notices DANGER Use only the Lenovo authorized battery specified for the computer. Any other battery could ignite or explode. For access, remove these FRUs in order: • “Base cover assembly” on page 62 •...

  • Page 87: Trackpad And Trackpad Cable

    • ThinkPad E16 Gen 3 Step 2. Install the coin-cell battery in reverse order. Note: When installing: • Ensure that the connector is attached firmly. • Reset the system date and time in the BIOS menu. Trackpad and Trackpad cable Before you start, read Generic Safety and Compliance Notices For access, remove these FRUs in order:...
  • Page 88 Note: There might exist a waterproof mylar covering the Trackpad, remove the mylar before replacement. Step Screw (quantity) Color Torque M2 × L1.7 mm, flat-head, nylon-coated (7) Silver 0.181 Nm (1.85 kgf-cm) Hardware Maintenance Manual...

  • Page 89: Lcd Unit

    Notes: • A mylar might cover the Trackpad, and ensure that you attach the mylar to the Trackpad after replacement. • Ensure that the connector is attached firmly. Step 2. Install the Trackpad and Trackpad cable in reverse order. LCD unit Follow the instructions to replace the LCD unit.
  • Page 90 Step Screw (quantity) Color Torque M 2.5 × L5 mm, flat-head, nylon-coated (1) Silver 0.294 Nm (3.0 kgf-cm) Black 0.294 Nm M 2.5 × L6 mm, flat-head, nylon-coated (4) (3.0 kgf-cm) • ThinkPad E16 Gen 3 Hardware Maintenance Manual...
  • Page 91 Chapter 8 Removing or replacing a FRU...

  • Page 92: Lcd Bezel Sheet And Lcd Bezel

    Step Screw (quantity) Color Torque 0.294 Nm M 2.5 × L5 mm, flat-head, nylon-coated (2) Silver (3.0 kgf-cm) M 2.5 × L6 mm, flat-head, nylon-coated (5) Black 0.294 Nm (3.0 kgf-cm) Step 2. Install the LCD unit in reverse order. Attention: When you route the cables, ensure that they are not subject to any tension.

  • Page 93: Lcd Panel And Lcd Cover

    Step 2. Install the LCD bezel in reverse order. Note: After the LCD bezel sheet is removed , it cannot be used anymore. A new LCD bezel sheet is required for replacement. LCD panel and LCD cover Follow the instructions to replace the LCD panel and LCD cover. Before you start, read Generic Safety and Compliance Notices For access, remove these FRUs in order:...

  • Page 94: Lcd Hinges

    Step 2. Install the LCD panel and LCD cover in reverse order. LCD hinges Follow the instructions to replace the LCD hinges. Before you start, read Generic Safety and Compliance Notices For access, remove these FRUs in order: • “Base cover assembly” on page 62 •...

  • Page 95: Camera Module

    Table 11. Screw specification Step Screw (quantity) Color Torque Black 0.294 Nm M2.5 × L3.5 mm, flat-head, nylon-coated (6) (3.0 kgf-cm) Step 2. Install the LCD hinges in reverse order. Camera module Follow the instructions to replace the camera module. Before you start, read Generic Safety and Compliance Notices For access, remove these FRUs in order:...

  • Page 96: Microphone Rubber

    Step 2. Install the camera module in reverse order. Microphone rubber Follow the instructions to replace the microphone rubber. Before you start, read Generic Safety and Compliance Notices For access, remove these FRUs in order: • “Base cover assembly” on page 62 •...

  • Page 97: Edp Cable Assembly

    EDP cable assembly Follow the instructions to replace the EDP cable assembly. Before you start, read Generic Safety and Compliance Notices For access, remove these FRUs in order: • “Base cover assembly” on page 62 • “LCD unit” on page 83 •...

  • Page 98: System Board

    Table 12. Screw specification Step Screw (quantity) Color Torque Black 0.294 Nm M2.5 × L3.5 mm, flat-head, nylon-coated (1) (3.0 kgf-cm) Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. Step 2.

  • Page 99: Replace The System Board

    • “Memory module” on page 65 • “Wireless LAN card” on page 69 • “Thermal fan assembly (for selected models)” on page 70 • “Built-in battery” on page 67 Tool needed: • Phillips head screwdriver This computer shares a common system board with another computer. After replacing the system board, you will be prompted to input a brand name to correctly identify the machine type.
  • Page 100 Step Screw (quantity) Color Torque M2.5 × L6 mm, flat head, nylon-coated (1) Siver 0.181 Nm (1.85 kgf-cm) M2.5 × L5 mm, flat head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) M2 × L2 mm, flat head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) •...
  • Page 101 Chapter 8 Removing or replacing a FRU...

  • Page 102: How To Input The Product Information With Thinkpad System Board Self Repair Tool

    The process of writing product information can only be used once and if unsure, consider getting support from a Lenovo-authorized service technician. Step 1.
  • Page 103 • “I/O board and I/O board cable” on page 74 • “Built-in battery” on page 67 • “Trackpad and Trackpad cable” on page 81 • “Power button with or without fingerprint reader and fingerprint reader cable” on page 77 • “Coin-cell battery” on page 80 •...
  • Page 104 Hardware Maintenance Manual...

  • Page 105: Appendix A. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.
  • Page 106 Trademarks Lenovo, Lenovo logo, ThinkPad, ThinkPad logo, TrackPoint, and UltraConnect are trademarks of Lenovo. Intel, Intel Optane, and Thunderbolt are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.

  • Page 107: Appendix B. Abbreviation Table

    Electrically Erasable Programmable Read-Only Memory Extensible Firmware Interface Electrostatic discharge Field Replaceable Unit General Announce Variant Integrated circuits Liquid Crystal Display Machine type and model POST Power-on self-test RFID Radio-frequency identification Supervisor password UUID Universally unique identifier © Copyright Lenovo 2025...
  • Page 108 Hardware Maintenance Manual...
  • Page 110 Part Number: SP41R78238 Printed in China (1P) P/N: SP41R78238 *1PSP41R78238*...

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