Lenovo 21MS005BRM Hardware Maintenance Manual
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Lenovo 21MS005BRM Hardware Maintenance Manual

Lenovo 21MS005BRM Hardware Maintenance Manual

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Lenovo ThinkBook 14 Gen 7 and Lenovo
ThinkBook 16 Gen 7
Hardware Maintenance Manual

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  • Page 1 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7 Hardware Maintenance Manual...
  • Page 2 First Edition (February 2024) © Copyright Lenovo 2024.

  • Page 3: Table Of Contents

    Trademarks ....lxvii Remove the 2242 solid-state drive and bracket (for selected models) ....© Copyright Lenovo 2024...
  • Page 4 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 5: About This Manual

    • It is recommended that these products be repaired by trained service technicians. For customers electing to repair their own Lenovo products, please follow all instructions carefully. • Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information” on page 1.
  • Page 6 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    • Do not work alone under hazardous conditions or near equipment that has hazardous voltages. • Disconnect all power before: – Performing a mechanical inspection – Working near power supplies – Removing or installing main units © Copyright Lenovo 2024...

  • Page 8: Safety Inspection Guide

    This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by this inspection guide.

  • Page 9: Handling Devices That Are Sensitive To Electrostatic Discharge

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any 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

    The safety notices in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER DANGER Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 27: Chapter 2. General Checkout

    • LCD panel cracked from the application of excessive force or from being dropped • Scratched (cosmetic) parts • Distortion, deformation, or discoloration of the cosmetic parts • Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force © Copyright Lenovo 2024...

  • Page 28: Cru List

    Power cord self-service Lower case optional-service Memory module optional-service 2242 solid-state drive* optional-service 2280 solid-state drive* optional-service 2242 solid-state drive bracket* optional-service * For selected models Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 29: Chapter 3. Identifying Frus (Crus)

    Chapter 3. Identifying FRUs (CRUs) Locate FRUs and CRUs The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer’s computer. Figure 1. Lenovo ThinkBook 14 Gen 7 exploded view Table 1.
  • Page 30 Battery pack Battery pack protective sponge Coin-cell battery Speakers Heat sink System board Touchpad board cable Upper case (with keyboard) Power cord ac power adapter Screw kit Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 31 Figure 2. Lenovo ThinkBook 16 Gen 7 exploded view Table 2. FRU (CRU) categories FRU (CRU) category LCD module Power button (without fingerprint reader)* Fingerprint reader* Fingerprint reader cable* I/O bracket I/O board cable I/O board System board Wi-Fi card...
  • Page 32 Battery pack protective sponge Coin-cell battery Speakers Heat sink Touchpad board cable Upper case (with keyboard) Power cord ac power adapter Screw kit * For selected models Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 33 Figure 3. LCD exploded view Table 3. FRU (CRU) categories FRU (CRU) category LCD bezel Microphone rubbers Camera module Touch board cable* Antennas Adhesive tapes LCD panel Upper case EDP cable Hinges Hinge cover * For selected models Chapter 3 Identifying FRUs (CRUs)
  • Page 34 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 35: Chapter 4. Removing A Fru Or Cru

    Chapter 4. Removing a FRU or CRU Service tools The following table lists tools for servicing Lenovo computers. Tools with a cross mark are needed for serving the product models as described by this publication. Prepare them before you service the product.

  • Page 36: Handling Thermal Interface Materials

    X-23-8160 0.18 g, 12.82 mm × 16.25 mm × 0.2 mm (for ARP models) 0.22 g, 11.24 mm × 22.89 mm × 0.2 mm (for IML models) Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 37: Area On The System Board Where Thermal Interface Materials Are Applied

    Figure 4. Area on the heat sink where thermal interface materials should be applied Area on the system board where thermal interface materials are applied The following figure shows the area on the system board where thermal interface materials are applied. Figure 5.

  • Page 38: Remove The Battery Pack

    Disconnect the cable from the system board. Then, remove five screws and then remove the battery pack. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 39: Remove The Battery Protective Sponge

    Number of screws Torque force (kgf.cm) M2 × L4 1.85 ± 0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Battery pack Remove the battery protective sponge Make sure the following FRUs (or CRUs) have been removed.

  • Page 40: Remove The Wi-Fi Card

    Wi-Fi card. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 9. Remove the Wi-Fi card Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 41: Remove The I/O Bracket

    M2 × L3 (ThinkBook 16 Gen 7) 1.85 ± 0.15 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Wi-Fi card Remove the I/O bracket Make sure the following FRUs (or CRUs) have been removed.

  • Page 42: Remove The 2242 Solid-State Drive And Bracket (For Selected Models)

    M2 × L2 (ThinkBook 14 Gen 7) 1.85 ± 0.15 M2 × L3 (ThinkBook 16 Gen 7) 1.85 ± 0.15 Step 2. Remove the 2242 solid-state drive thermal pad. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 43 Screw specifications Number of screws Torque force (kgf.cm) M2 × L3 1.85 ± 0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: 2242 solid-state drive 2242 solid-state drive bracket 2242 solid-state drive thermal pad...

  • Page 44: Remove The 2280 Solid-State Drive (For Selected Models)

    M2 × L2 (ThinkBook 14 Gen 7) 1.85 ± 0.15 M2 × L3 (ThinkBook 16 Gen 7) 1.85 ± 0.15 Step 2. Remove the 2280 solid-state drive thermal pad. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 45: Remove The Fan (Thinkbook 14 Gen 7)

    Figure 15. Remove the 2280 solid-state drive thermal pad Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: 2280 solid-state drive 2280 solid-state drive thermal pad Remove the fan (ThinkBook 14 Gen 7) Make sure the following FRUs (or CRUs) have been removed.

  • Page 46: Remove The Fan (Thinkbook 16 Gen 7)

    Disconnect the battery pack cable from the system board. Then, disconnect the fan cable from the system board, remove three screws and remove the fan. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 47: Remove The Heat Sink

    Number of screws Torque force (kgf.cm) M2 × L4 1.85 ± 0.15 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Remove the heat sink Make sure the following FRUs (or CRUs) have been removed.

  • Page 48: Remove The Coin-Cell Battery

    Disconnect the battery pack cable from the system board. Then, remove the coin-cell battery. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 19. Remove the coin-cell battery Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 49: Remove The Memory Module

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Coin-cell battery Remove the memory module Make sure the following FRUs (or CRUs) have been removed. “Remove the lower case” on page 31 Step 1.

  • Page 50: Remove The Speakers

    Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable. Figure 22. Disconnect cables and remove the speaker Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 51: Remove The Touchpad Board Cable

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Speakers Remove the touchpad board cable Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 31 “Remove the battery pack” on page 32 “Remove the battery protective sponge”...

  • Page 52: Remove The I/O Board (Thinkbook 14 Gen 7)

    “Remove the heat sink” on page 41 “Remove the coin-cell battery” on page 42 Step 1. Pull out the antenna cables. Then, remove three screws and open the left hinge. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 53 Figure 25. Remove three screws and open the hinge Screw specifications Number of screws Torque force (kgf.cm) M2.5 × L6 3.0 ± 0.15 Step 2. Disconnect the I/O board cable and fingerprint reader cable (if any). Figure 26. Disconnect the cable(s) Step 3.

  • Page 54: Remove The I/O Board (Thinkbook 16 Gen 7)

    “Remove the coin-cell battery” on page 42 Step 1. Disconnect the I/O board cable and fingerprint reader cable (if any). Then, remove three screws and open the left hinge. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 55 Figure 29. Remove three screws and the I/O board Screw specifications Number of screws Torque force (kgf.cm) M2 × L4 1.85 ± 0.15 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: I/O board Chapter 4 Removing a FRU or CRU...

  • Page 56: Remove The Fingerprint Reader Module (For Selected Models)

    Figure 30. Remove the acetate tapes Step 2. Remove the fingerprint reader module. Figure 31. Remove the fingerprint reader module Step 3. Disconnect the fingerprint reader cable. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 57: Remove The Power Button (For Selected Models)

    Figure 32. Disconnect the fingerprint reader cable Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Fingerprint reader module Remove the power button (for selected models) Make sure the following FRUs (CRUs) have been removed.

  • Page 58: Remove The System Board And I/O Board Cable

    Figure 34. Disconnect cables Note: For touch screen models, disconnect the touch board cable from the system board. Step 2. Remove one screw and remove the system board. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...
  • Page 59 Step 3. Disconnect the I/O board cable from the system board. Figure 36. Disconnect the I/O board cable from the system board Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: System board I/O board cable...

  • Page 60: Use A Golden Key U1 Tool To Flash-Write Key Id Information

    3.0 ± 0.15 M2 × L4 1.85 ± 0.15 Step 2. Rotate the LCD module to an angle of more than 90 degrees and remove the LCD module. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 61: Remove The Lcd Module (For Touch Screen Models)

    Figure 38. Rotate and remove LCD module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD module Remove the LCD module (for touch screen models) Make sure the following FRUs (CRUs) have been removed.
  • Page 62 1.85 ± 0.15 Step 2. Rotate the LCD module to an angle of more than 90 degrees and remove the LCD module. Figure 40. Rotate and remove LCD module Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 63: Remove The Upper Case (With Keyboard)

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: LCD module Remove the upper case (with keyboard) Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 31 “Remove the battery pack” on page 32 “Remove the battery protective sponge”...

  • Page 64: Remove The Lcd Bezel

    “Remove the hinge cover” on page 57 Step 1. Remove three screws and remove the LCD bezel. Figure 42. Remove three screws and remove the LCD bezel Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 65: Remove The Hinges

    Torque force (kgf.cm) M2 × L4 1.85 ± 0.15 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: LCD bezel Remove the hinges Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 31 “Remove the upper case (with keyboard)”...

  • Page 66: Remove The Upper Case (With Keyboard)

    Notes: When you turn on the computer and the LCD goes black, run LCD Self-Test to help you determine whether the LCD functions normally. To run LCD Self-Test: Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 67: Remove The Lcd Panel (For Touch Screen Models)

    3. The test lasts for about 20 seconds and then exits automatically. You also can press the power button to exit the test. Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Adhesive tapes LCD panel Remove the LCD panel (for touch screen models) Make sure the following FRUs (CRUs) have been removed.

  • Page 68: Remove The Microphone Rubbers

    “Remove the LCD panel (for non-touch screen models)” on page 59 “Remove the LCD panel (for touch screen models)” on page 61 Step 1. Remove the microphone rubbers. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 69: Remove The Camera Board

    Figure 48. Remove the microphone rubbers Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Microphone rubber Remove the camera board Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 31 “Remove the upper case (with keyboard)”...
  • Page 70 Note: Sponge is for models equipped with infrared camera. Step 2. Disconnect the camera board cable. Figure 50. Disconnect the camera board cable Step 3. Remove the camera board. Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 71: Remove The Antennas

    Figure 51. Remove the camera board Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Camera board Remove the antennas Make sure the following FRUs (CRUs) have been removed. “Remove the lower case” on page 31 “Remove the upper case (with keyboard)”...
  • Page 72 Figure 52. Remove the antennas Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Antenna Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual...

  • Page 73: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2024 Lenovo.

This manual is also suitable for:

Thinkbook 16 gen 7Thinkbook 14 gen 721ms005drm21ms004trm

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