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Lenovo ThinkPad X1 Carbon Gen 10 Hardware Maintenance Manual
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Lenovo ThinkPad X1 Carbon Gen 10 Hardware Maintenance Manual

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ThinkPad X1 Carbon Gen 10 and X1 Yoga Gen 7
Hardware Maintenance Manual

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Summary of Contents for Lenovo ThinkPad X1 Carbon Gen 10

  • Page 1 ThinkPad X1 Carbon Gen 10 and X1 Yoga Gen 7 Hardware Maintenance Manual...
  • Page 2 First Edition © Copyright Lenovo 2021. 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- 35F-05925.

  • Page 3: Table Of Contents

    1030 M.2 SSD, bracket, and thermal pad ..Sleep mode ....1040 WWAN card (for selected models) ..© Copyright Lenovo 2021...
  • Page 4 1050 Pen charger (for X1 Yoga Gen 7 only) ..1140 Coin-cell battery ... . 1060 Pen holder (for X1 Yoga Gen 7 only)..1150 Speaker assembly .

  • Page 5: About This Manual

    Machine types (MT): 20CD, 20CE ThinkPad X1 Carbon Gen 10 Machine types (MT): 20CB, 20CC ThinkPad X1 Yoga Gen 7 and ThinkPad X1 Carbon Gen 10 might be shipped with different microprocessors, ® namely Intel and Advanced Micro Devices (AMD). Hereby Intel models and AMD models are used to distinguish computer models with different microprocessors.
  • Page 6 XXX 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 2021...
  • 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 Chapter 1 Safety information...
  • Page 12 DANGER XXX Hardware Maintenance Manual...
  • Page 13 PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO XXX Hardware Maintenance Manual...
  • Page 15 PERIGO PERIGO PERIGO DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER DANGER XXX Hardware Maintenance Manual...
  • Page 17 DANGER VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT VORSICHT XXX Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 XXX Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 XXX Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 XXX Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 XXX Hardware Maintenance Manual...

  • Page 27: Chapter 2. Important Service Information

    – “FRU identification” on page 22 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 28: 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 29: 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 2021...

  • Page 30: 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 31: Quick Test 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...

  • Page 32: Power System Checkout

    1. Go to https://www.lenovo.com/diags 2. Click Lenovo Bootable Diagnostics. 3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or disc. To use the diagnostic medium you have created, do one of the following: •...

  • Page 33: 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 34 Wire Voltage (V dc) +2.5 to +3.2 Black Ground • If the voltage is correct, replace the system board. • If the voltage is not correct, replace the coin-cell battery. • If the coin-cell battery discharges quickly after replacement, replace the system board. XXX Hardware Maintenance Manual...

  • Page 35: 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. 1. Go to https://support.lenovo.com/HowToCreateLenovoRecovery 2. Follow the on-screen instructions. • Use Window recovery options.

  • Page 36: Nvme Passwords

    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 37: 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 a new storage drive to replace the old one by yourself.

  • Page 38: Power Management

    If no supervisor password has been set, do the following to remove the system management password: 1. Turn off the computer and disconnect ac power. 2. Disable the built-in battery. See “Disabling the built-in battery” on page 63. 3. Remove the base cover assembly. See “1010 Base cover assembly” on page 64. 4.

  • Page 39: Hibernation Mode

    Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode. Hibernation mode In hibernation mode, the following occurs: • The system status, RAM, VRAM, and setup data are stored on the solid-state drive. •...

  • Page 40: Numeric Error Codes

    Numeric error codes Table 2. Numeric error codes Symptom or error FRU or action, in sequence 0177 Replace the system board. Bad SVP data, stop POST task—The checksum of the supervisor password in the EEPROM is not correct. 0183 1. Run the ThinkPad Setup program. The settings Bad CRC of Security Settings in EFI Variable.

  • Page 41: Error Messages

    Beep errors Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology, do the following: 1.
  • Page 42 The following section describes some beep errors and the corresponding solutions. Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or product documentation. Only use a Lenovo-authorized service provider to repair your product. Error codes...

  • Page 43: No-Beep 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 44: Intermittent Problems

    Table 5. LCD-related symptoms FRU or action, in sequence Symptom or error No beep, power-on indicator on, and a blank LCD during 1. Run LCD Self Test. POST. 2. Replace the system board. • LCD backlight not working. 1. Reseat the LCD connectors. •...

  • Page 45: Chapter 5. Special Keys

    Open / collapse notification center ® Answer incoming calls on MicroSoft Teams Decline incoming calls on MicroSoft Teams. Customize the function of this key on the Vantage app Open Snipping Tool Toggle keyboard backlight Break operation Pause operation Scroll contents © Copyright Lenovo 2021...
  • Page 46 Send system request Enter sleep mode To wake up the computer, press Fn or the power button. Go to beginning Go to end XXX Hardware Maintenance Manual...

  • Page 47: Chapter 6. Locations

    Chapter 6. Locations Locating computer controls and connectors Front view ThinkPad X1 Yoga Gen 7 Webcam privacy shutter Infrared camera* / Camera* Microphone Power button with fingerprint reader ® TrackPoint pointing stick Speaker © Copyright Lenovo 2021...
  • Page 48 Trackpad NFC (near field communication) mark* TrackPoint buttons Touch screen * for selected models ThinkPad X1 Carbon Gen 10 Webcam privacy shutter IR camera* / Camera* Microphones Power button with fingerprint reader ® TrackPoint pointing stick Speaker XXX Hardware Maintenance Manual...
  • Page 49 Trackpad NFC (near field communication) mark* TrackPoint buttons Touch screen* * for selected models Chapter 6 Locations...

  • Page 50: Side View

    For ThinkPad X1 Yoga Gen 7 ® USB-C (Thunderbolt™ 4) power USB-C (Thunderbolt 4) connector connector Lenovo Integrated Pen USB 3.2 connector Gen 1 Nano-SIM-card tray Audio connector Always on USB 3.2 connector Gen 1 Security-lock slot XXX Hardware Maintenance Manual...

  • Page 51: Bottom

    For ThinkPad X1 Carbon Gen 10 ® USB-C (Thunderbolt™ 4) power USB-C (Thunderbolt 4) connector connector USB 3.2 connector Gen 1 Audio connector Nano-SIM-card tray Always on USB 3.2 connector Gen 1 Security-lock slot * for selected models Bottom ThinkPad X1 Yoga Gen 7...
  • Page 52 ThinkPad X1 Carbon Gen 10 Emergency-reset hole Speaker XXX Hardware Maintenance Manual...

  • Page 53: Locating Frus And Crus

    CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, 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.

  • Page 54: Major Frus And Crus (For X1 Yoga Gen 7)

    Major FRUs and CRUs (for X1 Yoga Gen 7) XXX Hardware Maintenance Manual...
  • Page 55 Touchpad, P sensor, and NFC cable (for models with NFC) Nano-SIM-card tray* Power button with fingerprint reader module Fingerprint reader bracket Pen holder Lenovo Integrated Pen Pen charger with cable Recovery USB* Power cord ac power adapter Miscellaneous parts (See “Miscellaneous parts and other FRUs”...

  • Page 56: Major Frus And Crus (For X1 Carbon Gen 10)

    * for selected models Major FRUs and CRUs (for X1 Carbon Gen 10) XXX Hardware Maintenance Manual...
  • Page 57 FRU descriptions Self-service CRU Optional-service LCD unit Note: LCD unit is a single FRU. Keyboard bezel assembly with keyboard Trackpad (for models without NFC) Trackpad (for models with NFC) NFC module* Coin-cell battery Speaker kit Built-in battery Thermal fan assembly System board Wireless-WAN antenna assembly* Base cover assembly...

  • Page 58: Miscellaneous Parts And Other Frus

    *for selected models Connector and cable guide This section provides information for Lenovo authorized service technicians to help identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs and CRUs (for X1 Yoga Gen 7)” on page 48, and “Major FRUs and CRUs (for X1 Carbon Gen 10)” on page 50.
  • Page 59 System board connectors and cables Item Connector (location) Internal cable required Cable connection Always on USB 3.2 Connect USB-A compatible devices. connector Gen 1 (external) Camera connector Camera cable The LCD unit comes with the camera cable. (internal) Connect the cable to this connector. WLAN antenna connector WLAN antenna The LCD unit comes with the WLAN antenna.
  • Page 60 Item Connector (location) Internal cable required Cable connection HDMI connector Connect a compatible digital audio device or (external) video monitor to this connector. Coin-cell battery Coin-cell battery with cable The coin-cell battery comes with a cable. connector (internal) Connect the cable to this connector. Built-in battery connector Connect built-in battery.

  • Page 61: Looking Up Fru Information

    Connect the WWAN antenna assembly to this two ends. NFC connector Connect this end to the NFC module. 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 XXX 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 2021...

  • Page 64: Sensor Calibration

    If your system board or LCD unit has been replaced, do the following to make sensor calibration: 1. Download the Windows Sensor Calibration Tool from https://support.lenovo.com 2. Extract the tool into a local driver, such as D:\WinCalibration. 3. Type WindowsCalibrationTool.exe –calibrate a –minimal –updateiss –primaryonly to create a Update.bat file as shown.

  • Page 65: Retaining Serial Numbers

    1. Connect a USB memory key to the computer. 2. Go to and follow the instructions on the screen to create a https://www.lenovo.com/maintenanceutilities Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. Chapter 7 FRU replacement notices...

  • Page 66: Retaining The Uuid

    Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.
  • Page 67 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To read the ECA information, select 2. Read ECA/rework number from EEPROM and follow the instructions on the screen.
  • Page 68 XXX Hardware Maintenance Manual...

  • Page 69: Chapter 8. Removing Or Replacing A Fru

    2. Click Power Options, and then click Choose what the power buttons do on the left pane. 3. Click Change settings that are currently unavailable at the top. 4. If prompted by User Account Control (UAC), click Yes. © Copyright Lenovo 2021...

  • Page 70: Removing The Nano-Sim Card

    5. Clear the Turn on fast startup check box, and then click Save changes. To disable the built-in battery: 1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS menu. 2. Select Config ➙ Power. The Power submenu is displayed. 3.
  • Page 71 Label locations on the base cover assembly The following illustration shows the location of each label. IMEI label CMIIT lable GEO label CECP label Asset tag Windows label S/N labe COA label Country label Chapter 8 Removing or replacing a FRU...

  • Page 72: 1020 Built-In Battery

    The only exception to this is if the battery is physically damaged or a customer is reporting a possible safety issue. If the Lenovo Solution Center program is not installed on the computer, the customer should download and install the program to diagnose the battery, before getting a non-physically damaged battery replaced. Note that the replacement of a physically damaged battery is not covered by the warranty.

  • Page 73: 1030 M.2 Ssd, Bracket, And Thermal Pad

    1030 M.2 SSD, bracket, and thermal pad For access, remove this FRU: • “1010 Base cover assembly” on page 64 Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data.
  • Page 74 Removal procedure of the WWAN card Type 1 When installing: ensure that you connect the blue cable to connector, the black with grey cable to connector, the white cable to connector and the orange cable to connector. Type 2 When installing: ensure that you connect the blue cable to connector, the black with grey cable to connector, the white cable to connector and the orange cable to...

  • Page 75: 1050 Pen Charger (For X1 Yoga Gen 7 Only)

    Type 3 When installing: ensure that you connect the blue cable to connector and the orange cable to connector. Torque Step Screw (quantity) Color M2 × L2.2 mm, big-hat (1) Silver 0.181 Nm (1.85 kgf-cm) 1050 Pen charger (for X1 Yoga Gen 7 only) For access, remove this FRU: •...

  • Page 76: 1060 Pen Holder (For X1 Yoga Gen 7 Only)

    Step Screw (quantity) Color Torque M2 × L3.5 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 1060 Pen holder (for X1 Yoga Gen 7 only) For access, remove this FRU: • “1010 Base cover assembly” on page 64 • “1020 Built-in battery” on page 66 Step Screw (quantity) Color...

  • Page 77: 1080 Audio Board

    When installing: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. • Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustrations.

  • Page 78: 1100 Nfc Module And The Sponge

    Removal steps of the USB board Table 8. For X1 Yoga Gen 7 Torque Step Screw (quantity) Color M2 × L3.5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) M2 × L2.2 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) Table 9.

  • Page 79: 1110 Trackpad, P Sensor And And Nfc Cable

    1110 Trackpad, P sensor and and NFC cable For access, remove these FRUs in order: • “1010 Base cover assembly” on page 64 • “1020 Built-in battery” on page 66 Removal steps of the trackpad, P sensor and and NFC cable (for model with NFC module) Chapter 8 Removing or replacing a FRU...
  • Page 80 XXX Hardware Maintenance Manual...

  • Page 81: 1120 Power Button With Fingerprint Reader Module And Bracket

    Removal steps of the trackpad and P sensor cable (for model without NFC module) 1120 Power button with fingerprint reader module and bracket For access, remove these FRUs in order: • “1010 Base cover assembly” on page 64 Chapter 8 Removing or replacing a FRU...

  • Page 82: 1130 Trackpad

    Removal steps of the fingerprint reader module and bracket Table 10. X1 Yoga Gen 7 Step Screw (quantity) Color Torque M2 × L3.5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Table 11. X1 Carbon Gen 10 Step Screw (quantity) Color Torque M2 ×...

  • Page 83: 1010 Base Cover Assembly

    • “1010 Base cover assembly” on page 64 • “1020 Built-in battery” on page 66 • “1110 Trackpad, P sensor and and NFC cable” on page 73 Removal steps of the trackpad (for models with NFC module) Step Screw (quantity) Color Torque M2 ×...

  • Page 84: 1140 Coin-Cell Battery

    Removal steps of the trackpad (for model without NFC module) Torque Step Screw (quantity) Color M2 × L1.8 mm, flat-head, nylon-coated (4) Silver or 0.181 Nm Black (1.85 kgf-cm) 1140 Coin-cell battery For access, remove these FRUs: • “1010 Base cover assembly” on page 64 •...
  • Page 85 Removal steps of the speaker assembly (for X1 Yoga Gen 7) Step Screw (quantity) Color Torque M2 × L3.5 mm, flat-head shoulder, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) M2 × L2.2 mm step screw, flat-head shoulder, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) Chapter 8...

  • Page 86: 1160 Wireless-Wan Antenna Assembly

    Removal steps of the speaker assembly (for X1 Carbon Gen 10) Step Screw (quantity) Color Torque M2 × L2.8 mm, flat-head shoulder, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) M2 × L5.5 mm step screw, flat-head shoulder, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) 1160 Wireless-WAN antenna assembly...
  • Page 87 Removal steps of WWAN antenna assembly Chapter 8 Removing or replacing a FRU...

  • Page 88: 1170 System Board Assembly

    Step Screw (quantity) Color Torque M1.6 × L2.6 mm, flat-head, nylon-coated (6) Black or silver 0.181 Nm (1.85 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. 1170 System board assembly Important notices for handling the system board When handling the system board, read the following:...
  • Page 89 Machine types Shared with ThinkPad X1 Yoga Gen 7 21CD and 21CE ThinkPad X1 Carbon Gen 10 ThinkPad X1 Carbon Gen 10 21CB and 21CC ThinkPad X1 Yoga Gen 7 Removal steps of system board (for X1 Yoga Gen 7)
  • Page 90 Torque Step Screw (quantity) Color M2 × L2.8 mm, flat-head, nylon-coated (8) Silver 0.181 Nm (1.85 kgf-cm) Removal steps of system board (for X1 Carbon Gen 10) XXX Hardware Maintenance Manual...

  • Page 91: 1180 Lcd Unit

    Step Screw (quantity) Color Torque M2 × L2.8 mm, flat-head, nylon-coated (8) Silver 0.181 Nm (1.85 kgf-cm) 1180 LCD unit For access, remove these FRUs in order: • “1010 Base cover assembly” on page 64 Chapter 8 Removing or replacing a FRU...
  • Page 92 Removal steps of the LCD unit (for X1 Yoga Gen 7) Step Screw (quantity) Color Torque M2.5 × L4 mm, flat-head, nylon-coated (8) Black 0.294 Nm (3.0 kgf-cm) XXX Hardware Maintenance Manual...

  • Page 93: 1190 Keyboard Bezel Assembly With Keyboard

    Removal steps of the LCD unit (for X1 Carbon Gen 10) Step Screw (quantity) Color Torque M2.5 × L3.5 mm, flat-head, nylon-coated (4) Black 0.294 Nm (3.0 kgf-cm) 1190 Keyboard bezel assembly with keyboard To remove the keyboard bezel assembly, remove these FRUs in order: •...
  • Page 94 • “1070 Thermal fan assembly” on page 70 • “1080 Audio board” on page 71 • “1090 USB board” on page 71 • “1100 NFC module and the sponge” on page 72 • “1110 Trackpad, P sensor and and NFC cable” on page 73 •...

  • Page 95: 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 96 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 97: 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 2021...
  • Page 98 XXX Hardware Maintenance Manual...
  • Page 100 Part Number: XXXX Printed in China (1P) P/N: XXXX *1PXXXX*...

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