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Lenovo ThinkPad L13 Yoga Gen 4 Hardware Maintenance Manual
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Lenovo ThinkPad L13 Yoga Gen 4 Hardware Maintenance Manual

Lenovo ThinkPad L13 Yoga Gen 4 Hardware Maintenance Manual

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Summary of Contents for Lenovo ThinkPad L13 Yoga Gen 4

  • Page 1 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 2 First Edition (February 2023) © Copyright Lenovo 2023. 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

    Power management ... . . 1040 Keyboard ....Sleep mode ....© Copyright Lenovo 2023...
  • Page 4 1050 M.2 solid-state drive, bracket, and thermal 2030 LCD hinges ....... 2040 LCD cable .

  • Page 5: About This Manual

    This manual contains service and reference information for the following products: ThinkPad L13 Gen 4 Machine types (MT): 21FG, 21FH, 21FN and 21FQ ThinkPad L13 Yoga Gen 4 Machine types (MT): 21FJ, 21FK, 21FR and 21FC ThinkPad S2 Gen 8...
  • Page 6 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 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 2023...
  • 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 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 13 PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 15 PERIGO PERIGO PERIGO DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER DANGER L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 17 DANGER VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT VORSICHT L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 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 2023...

  • 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. L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 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 65. 3. Remove the base cover assembly. See “1020 Base cover assembly” on page 67. 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: Beep Symptoms

    Error codes Solutions 0287: Discrete graphics error 1. Reinstall or replace the discrete graphics card (service provider only). 2. If step 1 does not work, replace the system board (service provider only). 1. Reconnect the display cable on both the system board side and the computer display side (service provider only) and check the LCD panel.

  • Page 44: 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 45: 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 46 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 47: 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 (for selected models) Break operation © Copyright Lenovo 2023...
  • Page 48 Pause operation Scroll contents Send system request Enter sleep mode To wake up the computer, press Fn or the power button. Go to beginning Go to end L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 49: Chapter 6. Locations

    Chapter 6. Locations Locating computer controls and connectors Front view Webcam privacy shutter Infrared camera / Camera Microphones Touch screen ® Power button with fingerprint reader TrackPoint pointing stick © Copyright Lenovo 2023...
  • Page 50 NFC (near field communication) mark TrackPoint buttons Trackpad Smart-card slot * for selected models L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 51: Side View

    ® USB-C (Thunderbolt™ 4) power Nano-SIM-card tray connector USB-A 3.2 Gen 1 connector Audio connector Security-lock slot USB-C (3.2 Gen 2) connector Always on USB-A 3.2 Gen 1 connector HDMI™ connector Lenovo Integrated Pen *for selected models Chapter 6 Locations...
  • Page 52 Security-lock slot USB-C (3.2 Gen 2) connector Always on USB-A 3.2 Gen 1 connector HDMI connector Lenovo Integrated Pen *for selected models L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 53: Bottom View

    Bottom view Emergency-reset hole Speakers Chapter 6 Locations...

  • Page 54: 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 55: Major Frus And Crus

    Major FRUs and CRUs Chapter 6 Locations...
  • Page 56 Table 6. Major FRUs and CRUs FRU description Self-service Optional-service LCD unit Keyboard Keyboard bezel assembly Power button without fingerprint reader* Fingerprint reader bracket* Power button with fingerprint reader* Fingerprint reader cable* Heatsink Thermal fan System board Right I/O bracket Speaker assembly Wireless LAN/WAN antenna assembly* Built-in battery...
  • Page 57 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 58: Lcd Frus And Crus

    LCD FRUs and CRUs For non-Yoga models Table 7. LCD FRUs and CRUs FRU description Self-service Optional-service LCD bezel LCD panel LCD hinges Camera-and-microphone-module cable* LCD cover assembly LCD cable Webcam privacy shutter Camera and microphone module(IR camera*/RGB camera*) L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 59 Table 7. LCD FRUs and CRUs (continued) FRU description Self-service Optional-service Microphone rubbers Sensor board Elastic adhesive tapes Miscellaneous parts kits (camera sponge, LCD EMI gasket and sponge) * for selected models Note: Depending on the computer model, your computer might look different from the illustration above. For Yoga models Chapter 6 Locations...
  • Page 60 Table 8. LCD FRUs and CRUs FRU description Self-service Optional-service LCD Module LCD hinges Camera-and-microphone-module cable* LCD cover assembly LCD cable Webcam privacy shutter Camera and microphone module(IR camera*/RGB camera*) Microphone rubbers Sensor board Hinge rubber Rubber caps LCD strip cover Miscellaneous parts kits (camera sponge, LCD EMI gasket and sponge) * for selected models...

  • Page 61: 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 49 and “LCD FRUs and CRUs” on page 52.
  • Page 62 System board connectors and cables Table 10. System board connector and cable guide Internal cable required Connector/feature Cable connection Insert a wireless-WAN card into this Wireless-WAN-card slot (internal)* slot. Thermal fan connector (internal) Thermal fan cable The thermal fan comes with the cable.

  • Page 63: Looking Up Fru Information

    USB-C (3.2 Gen 2) connector Connect USB-C compatible (external) devices to this connector. * for selceted models 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 64 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 65: 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 2023...

  • Page 66: 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 67: 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 68: 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 69 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 70 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 71: 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 2023...

  • Page 72: Removing The Nano-Sim-Card And Nano-Sim-Card Tray

    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 73: 1020 Base Cover Assembly

    1020 Base cover assembly For access, remove this FRU: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 Removal step of the base cover assembly Step Screw (quantity) Color Torque M 2.5 ×...

  • Page 74: 1030 Built-In Battery

    Important notice for replacing a battery Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use. The Vantage app provides an automatic battery diagnostic test that determines if the built-in battery is defective. A built-in battery FRU should not be replaced unless this diagnostic test shows that the battery is defective.

  • Page 75: 1040 Keyboard

    • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 Removal steps of the built-in battery Step Screw (quantity) Color Torque M2 × 5 mm, flat-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm)

  • Page 76: 1050 M.2 Solid-State Drive, Bracket, And Thermal Pad

    Step Screw (quantity) Color Torque M2 × 2.5 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) M2 × 5 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Configure the keyboard language in UEFI BIOS: 1. Enter the UEFI BIOS menu. 2.
  • Page 77 If your computer is installed with a hybrid solid-state drive (with Intel Optane memory), go to https:// to know the details on how to replace it. support.lenovo.com/docs/tg_ssd Removal steps of the M.2 solid-state drive Step Screw (quantity)

  • Page 78: 1060 Wireless Wan Card (For Selected Models)

    1060 Wireless WAN card (for selected models) For access, remove these FRUs: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 Removal steps of the wireless WAN card Step Screw (quantity) Color...

  • Page 79: 1070 Thermal Fan And Heatsink Assembly

    1070 Thermal fan and heatsink assembly For access, remove these FRUs: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 Removal steps of the thermal fan and heatsink assembly Step Screw (quantity) Color...

  • Page 80: 1080 I/O Connectors Brackets

    Step Screw (quantity) Color Torque M2 × 4 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. •...

  • Page 81: 1090 Fingerprint Reader Cable (For Selected Models)

    Removal steps of the I/O connectors brackets Step Screw (quantity) Color Torque M 2.5 x 4.5 mm, wafer-head, nylon-coated (2) Silver 0.294 Nm (3.0 kgf-cm) M 2 x 4 mm, wafer-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) 1090 Fingerprint reader cable (for selected models) For access, remove these FRUs: •...

  • Page 82: 1100 Speaker Assembly

    1100 Speaker assembly For access, remove these FRUs: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 • “1030 Built-in battery” on page 68 Removal steps of the speaker assembly When installing: L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 83: 1110 Coin-Cell Battery

    • Ensure that the connector is attached firmly. • Ensure that the cable is routed properly. 1110 Coin-cell battery DANGER Use only the authorized battery specified for the computer. Any other battery could ignite or explode. For access, remove these FRUs in order: •...
  • Page 84 Torque Step Screw (quantity) Color M2 × L2 mm, flat-head, nylon-coated (7) Silver 0.181 Nm (1.85 kgf-cm) L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 85: 1130 Nfc Module With Cable And Trackpad-Nfc Cable (For Selected Models)

    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. 1130 NFC module with cable and trackpad-nfc cable (for selected models) For access, remove these FRUs in order: •...

  • Page 86: 1140 Smart Card Reader (For Selected Models)

    1140 Smart card reader (for selected models) For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 •...

  • Page 87: 1150 Thinkpad Pen Pro Charger With Cable

    1150 ThinkPad Pen Pro charger with cable (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only) For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 •...

  • Page 88: 1170 P-Sensor Cable

    Removal steps of the wireless LAN/wireless WAN antennas When installing: Ensure that the connectors are attached firmly. 1170 P-sensor cable For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 •...
  • Page 89 Note: Input the exact brand name as shown in this table. ThinkPad L13 Gen 4 Machine types (MT): 21FG, 21FH, 21FN and 21FQ ThinkPad L13 Yoga Gen 4 Machine types (MT): 21FJ, 21FK, 21FR and 21FC ThinkPad S2 Gen 8...
  • Page 90 Removal steps of the system board L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 91 Step Screw (quantity) Color Torque M2 × 2.5 mm, flat head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) M2 × 2.5 mm, flat head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) When installing: Configure the keyboard language in UEFI BIOS: 1.
  • Page 92 Foil and mylar locations Note: After replacing the system board or keyboard bezel assembly, apply foil and mylar to the correct locations. • For Wireless LAN models – Non-Yoga models (AMD Platform) Keyboard bezel assembly: System board: install the mylar no Al foil –...
  • Page 93 – Yoga models (AMD Platform) Keyboard bezel assembly: System board: – install the keyboard left mylar – install the graphite sheet no Al foil – install the keyboard right mylar – install the WLAN mylar – Yoga models (Intel Platform) Keyboard bezel assembly: System board: –...
  • Page 94 • For Wireless WAN models – Non-Yoga models (AMD Platform) Keyboard bezel assembly: System board: no mylar install Al foil – Non-Yoga models (Intel Platform) Keyboard bezel assembly: System board: no mylar install Al foil L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 95: 1190 World Facing Camera And Camera Cable

    – Yoga models (AMD Platform) Keyboard bezel assembly: System board: install the graphite sheet install Al foil – Yoga models (Intel Platform) Keyboard bezel assembly: System board: install the CU foil install Al foil 1190 World facing camera and camera cable For access, remove these FRUs in order: •...

  • Page 96: 1200 Power Button With Or Without Fingerprint Reader

    Removal steps of the world facing camera and camera cable When installing: Ensure that the connector is attached firmly to the system board. 1200 Power button with or without fingerprint reader For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 •...

  • Page 97: 1210 Lcd Unit

    Removal steps of the power button with or without fingerprint reader Step Screw (quantity) Color Torque M2 × 2.5 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) 1210 LCD unit For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 •...

  • Page 98: 1220 Keyboard Bezel Assembly

    Step Screw (quantity) Color Torque M 2.5 × 4.5 mm, flat-head, nylon-coated (4) Silver 0.294 Nm (3.0 kgf-cm) When installing: Ensure that the connectors are attached firmly. 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.

  • Page 99: Lcd Frus For Non-Yoga Models

    LCD FRUs for non-yoga models This chapter provides information about replacement of LCD FRUs for non-yoga models. 2010 LCD bezel For access, remove these FRUs in order: • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 Removal steps of the LCD bezel When installing: Ensure that all the latches are attached firmly.

  • Page 100: 2030 Lcd Hinges

    2030 LCD hinges For access, remove these FRUs in order: • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 • “2010 LCD bezel” on page 93 Removal steps of the LCD hinges Table 11. Screw specification Torque Step Screw (quantity)

  • Page 101: 2050 Webcam Privacy Shutter

    Removal steps of the LCD cable 2050 Webcam privacy shutter For access, remove these FRUs in order: • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 • “2010 LCD bezel” on page 93 • “2020 LCD panel” on page 93 Removal steps of the webcam privacy shutter 2060 Camera-and-microphone cable and sensor board cable For access, remove these FRUs in order:...

  • Page 102: 2070 Microphone Rubber And Camera-And-Microphone Module

    Removal steps of the camera-and-microphone cable and sensor board cable 2070 Microphone rubber and camera-and-microphone module For access, remove these FRUs in order: • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 • “2010 LCD bezel” on page 93 •...

  • Page 103: 2080 Sensor Board

    2080 Sensor board For access, remove these FRUs in order: • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 • “2010 LCD bezel” on page 93 • “2020 LCD panel” on page 93 Removal steps of the sensor board 2090 LCD cover assembly For access, remove these FRUs in order: •...
  • Page 104 Removal steps of the strip cover, rubber caps and hinge rubbers Step Screw (quantity) Color Torque Black 0.294 Nm M 2 × 3.5 mm, flat-head, nylon-coated (2) (3.0 kgf-cm) When installing: Ensure that all the latches are attached firmly. L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 105: 3020 Lcd Panel

    3020 LCD panel For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 •...

  • Page 106: 3040 Lcd Cable

    Removal steps of the LCD hinges Table 12. Screw specification Torque Step Screw (quantity) Color M2.5 × 2.5 mm, flat-head, nylon-coated (4) Silver 0.294 Nm (3.0 kgf-cm) 3040 LCD cable For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 •...

  • Page 107: 3060 Camera-And-Microphone Cable And Sensor Board Cable

    Removal steps of the webcam privacy shutter 3060 Camera-and-microphone cable and sensor board cable For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 •...

  • Page 108: 3080 Sensor Board

    Removal steps of the microphone rubber and camera-and-microphone module 3080 Sensor board For access, remove these FRUs in order: • “1010 ThinkPad Pen Pro (for L13 Yoga Gen 4 and S2 Yoga Gen 8 only)” on page 66 • “1020 Base cover assembly” on page 67 •...
  • Page 109 • “1020 Base cover assembly” on page 67 • “1210 LCD unit” on page 91 • “3010 Strip cover, rubber caps and hinge rubbers ” on page 97 • “3020 LCD panel” on page 99 • “3030 LCD hinges” on page 99 •...
  • Page 110 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...

  • Page 111: 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 112 Trademarks LENOVO, LENOVO logo, THINKPAD, THINKPAD logo and TRACKPOINT are trademarks of Lenovo. Intel and Thunderbolt are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Microsoft, Microsoft Teams and Windows are trademarks of the Microsoft group of companies. The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

  • Page 113: 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 2023...
  • Page 114 L13 Gen 4, L13 Yoga Gen 4, S2 Gen 8, and S2 Yoga Gen 8 Hardware Maintenance Manual...
  • Page 116 Part Number: SP41G78408 Printed in China (1P) P/N: SP41G78408 *1PSP41G78408*...

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