Screw notices ....Disassemble the LCD unit (for Lenovo 300w Yoga Gen 4 / Lenovo 500w Yoga Gen 4) ..Chapter 5. Removing or replacing a 2010 Strip cover caps and strip cover .
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Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
About this manual This manual contains service and reference information for the following products: Product name Machine type (MT) Lenovo 100w Gen 4 82VK, 82VL Lenovo 300w Yoga Gen 4 82VM, 82VN Lenovo 500w Yoga Gen 4 82VQ, 82VR Use this manual along with the advanced diagnostic tests to troubleshoot problems.
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Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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• If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. – Send another person to get medical aid. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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.
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 Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
Checking the battery and operational charging Checking the battery 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. If an unauthorized battery or a battery designed for another systems is installed, the system will not charge.
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2. Perform operational charging. Click the battery status icon in the Windows notification area to display detailed battery information. If it indicates that the battery is not charging, replace the battery. 3. Check the battery status again. If the same error still exists, replace the system board. Chapter 2 General checkout...
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Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
Lenovo 300w Yoga Gen 4 Power button and Lenovo 500w Yoga Gen 4) Volume button (for Lenovo 300w Yoga Gen 4 and Lenovo 500w Yoga Gen 4 Always On USB-A 3.2 Gen 1 connector only) Security-lock slot * for selected models...
Base Description Description Item Item Camera (for selected models of 300w Microphone Yoga Gen 4 and 500w Yoga Gen 4) Trackpad * for selected models Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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 https://support.lenovo.com...
Major FRUs and CRUs Lenovo 100w Gen 4 Chapter 3 Locations...
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Microsoft Windows operating system. It might not come with the computer, and a user might order it from https://pcsupport.lenovo.com/ lenovorecovery , though additional shipping and handling fees might apply. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Lenovo 300w Yoga Gen 4 Chapter 3 Locations...
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Main wireless WAN antenna (for wireless WAN model only) Miscellaneous parts kits (see “Miscellaneous parts” on page 43) ac power adapter Power cord Lenovo factory recovery USB key* * for selected models Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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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/...
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Lenovo 500w Yoga Gen 4 Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Microsoft Windows operating system. It might not come with the computer, and a user might order it from https://pcsupport.lenovo.com/ , though additional shipping and handling fees might apply. lenovorecovery Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
LCD FRUs and CRUs Lenovo 100w Gen 4 Chapter 3 Locations...
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Wireless LAN antenna assembly Hinge caps LCD cover assembly * for selected models Note: Depending on the computer model, your computer might look different from the illustration above. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Lenovo 300w Yoga Gen 4 Chapter 3 Locations...
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RF sponge (for wireless WAN model only) Camera and microphone module AI foil * for selected models Note: Depending on the computer model, your computer might look different from the illustration above. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Lenovo 500w Yoga Gen 4 Chapter 3 Locations...
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Wireless LAN antenna assembly LCD cover assembly Hinge rubber * for selected models Note: Depending on the computer model, your computer might look different from the illustration above. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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• Ensure torque screwdrivers are calibrated correctly following country specifications. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
Before you start, read Generic Safety and Compliance Notices and print the following instructions. For computer models come with a pen dummy, you can purchase a Lenovo Integrated Pen to use. To purchase the pen, go to https://www.lenovo.com/accessories For access, do the following: 1.
1010 Keyboard Removal procedure 1. Loosen the screw that secures the keyboard. 2. Use a metal pry tool (with adhesive tape attached to the tip) to release the top left corner of the keyboard from the keyboard bezel assembly. Ensure you attach new adhesive tape if it is broken. 3.
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4. Pivot the keyboard slightly upward. 5. Detach the connector and remove the keyboard. Installation procedure 1. Attach the connector. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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2. Insert the keyboard into the keyboard bezel assembly as shown. Ensure that the bottom edge of the keyboard (the edge that is close to the trackpad) is under the keyboard bezel assembly. 3. Slightly push the keyboard as shown and ensure that it is seated correctly. 4.
5. Connect the ac power adapter and all disconnected cables to the computer. 1020 Base cover assembly Removal procedure Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Installation procedure Troubleshooting 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. Chapter 5 Removing or replacing a FRU...
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Country label Removal steps of nano-SIM card (for selected models of 300 Yoga Gen 4) For access, remove this FRU: • “1020 Base cover assembly” on page 52 Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
1030 M.2 solid-state drive and thermal pad For access, remove this FRU: • “1020 Base cover assembly” on page 52 Attention: The M.2 solid-state drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the M.2 solid-state drive, observe the following guidelines: •...
1040 Wireless WAN card (for selected models of Lenovo 300w Yoga Gen 4 only) For access, remove this FRU: • “1020 Base cover assembly” on page 52 Removal steps of the wireless WAN card Torque Step Screw (quantity) Color M2 × 3.5 mm, flat-head, nylon-coated (1) Silver 0.181 Nm...
1060 Coin-cell battery 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: • “1020 Base cover assembly” on page 52 •...
Removal steps of the coin-cell battery When installing: • Ensure that the connector is attached firmly. • Reset the system date and time in the BIOS menu. 1070 Daughter board cable For access, remove this FRU: • “1020 Base cover assembly” on page 52 Removal steps of the daughter board cable Chapter 5 Removing or replacing a FRU...
• “1080 Daughter board bracket” on page 60 Removal steps of the daughter board Note: Step is for wireless WAN model of Lenovo 300w Yoga Gen 4 only. Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
(1.85 kgf-cm) 1110 Built-in battery DANGER Use only the Lenovo authorized battery specified for the computer. Any other battery could ignite or explode. 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.
• Ensure that the base cover assembly is secured in place. Otherwise, the battery connection may fail. 1120 USB-C bracket For access, remove this FRU: • “1020 Base cover assembly” on page 52 Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
0.181 Nm M2 × 3.5 mm, flat-head, nylon-coated (4) Silver (1.85 kgf-cm) 1130 Main wireless WAN antenna (for wireless WAN models of Lenovo 300w Yoga Gen 4 only) For access, remove these FRUs: • “1020 Base cover assembly” on page 52 •...
• “1080 Daughter board bracket” on page 60 • “1110 Built-in battery” on page 61 • “1130 Main wireless WAN antenna (for wireless WAN models of Lenovo 300w Yoga Gen 4 only)” on page Removal steps of the speaker assembly...
When installing: • Ensure that the connector is attached firmly. • Ensure that the cable is routed properly. 1150 Trackpad cable For access, remove these FRUs in order: • “1020 Base cover assembly” on page 52 • “1070 Daughter board cable” on page 59 •...
For access, remove this FRU: • “1020 Base cover assembly” on page 52 Removal steps of Lenovo Integrated Pen board and cable For easy access, release the speaker assembly cable before you release the Lenovo Integrated Pen board cable. When installing: •...
1170 Camera and camera cable (for selected models of Lenovo 300w Yoga Gen 4 / Lenovo 500w Yoga Gen 4) For access, remove this FRU: • “1020 Base cover assembly” on page 52 Removal steps of camera and camera cable...
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• “1110 Built-in battery” on page 61 • “1120 USB-C bracket” on page 62 • “1130 Main wireless WAN antenna (for wireless WAN models of Lenovo 300w Yoga Gen 4 only)” on page • “1140 Speaker assembly” on page 64 •...
• “1030 M.2 solid-state drive and thermal pad” on page 55 • “1040 Wireless WAN card (for selected models of Lenovo 300w Yoga Gen 4 only)” on page 57 • “1050 Wireless LAN card (for selected models)” on page 57...
• “1110 Built-in battery” on page 61 • “1120 USB-C bracket” on page 62 • “1130 Main wireless WAN antenna (for wireless WAN models of Lenovo 300w Yoga Gen 4 only)” on page • “1140 Speaker assembly” on page 64 •...
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Removal steps of the LCD unit for Lenovo 100w Gen 4 Step Screw (quantity) Color Torque M 2.5× 4 mm, flat-head, nylon-coated (6) Black 0.294 Nm (3.0 kgf-cm) Chapter 5 Removing or replacing a FRU...
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Removal steps of the LCD unit for Lenovo 300w Yoga Gen 4 / Lenovo 500w Yoga Gen 4 Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
Step Screw (quantity) Color Torque M 2.5 × 3.5 mm, flat-head, nylon-coated (6) Black 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.
• “1060 Coin-cell battery” on page 58 • “1140 Speaker assembly” on page 64 • “1130 Main wireless WAN antenna (for wireless WAN models of Lenovo 300w Yoga Gen 4 only)” on page • “1180 System board” on page 67 •...
Removal steps of LCD panel Torque Step Screw (quantity) Color M2 × 2.5 mm, flat head, nylon-coated (4) Silver 0.181 Nm (1.85 kgf-cm) 2030 Hinge caps For access, remove these FRUs in order: • “1020 Base cover assembly” on page 52 •...
Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 2.5 mm, flat-head, nylon-coated (10) (1.85 kgf-cm) 2050 LCD cable For access, remove these FRUs in order: Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
• “1020 Base cover assembly” on page 52 • “1220 LCD unit” on page 70 • “2010 LCD bezel” on page 74 • “2040 LCD hinges” on page 76 • “2020 LCD panel” on page 74 Removal steps of the LCD cable 2060 Webcam privacy shutter and camera-and-microphone board For access, remove these FRUs in order: •...
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Antenna locations Wireless LAN auxiliary antenna (black) Wireless LAN main antenna (gray) Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
Disassemble the LCD unit (for Lenovo 300w Yoga Gen 4 / Lenovo 500w Yoga Gen 4) The LCD unit as a whole is not a FRU. Instead, it contains FRUs as its components. Before disassembling the LCD unit, make sure it has been detached from the keyboard bezel assembly.
M2 × 3 mm, flat-head, nylon-coated (3) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that all the latches are attached firmly. 2040 LCD hinges For access, remove these FRUs in order: Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
• “1020 Base cover assembly” on page 52 • “1220 LCD unit” on page 70 • “2010 Strip cover caps and strip cover” on page 79 • “2020 Hinge rubber” on page 79 • “2030 LCD panel” on page 80 Removal steps of the LCD hinges Step Screw (quantity)
• “1220 LCD unit” on page 70 • “2010 Strip cover caps and strip cover” on page 79 • “2020 Hinge rubber” on page 79 • “2030 LCD panel” on page 80 Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Removal steps of the camera-and-microphone board (for Lenovo 300w Yoga Gen 4) Chapter 5 Removing or replacing a FRU...
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Removal steps of the sensor board (for Lenovo 300w Yoga Gen 4) Removal steps of the camera-and-microphone board and sensor board (for Lenovo 500w Yoga Gen 4 only) Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
• “2050 LCD cable” on page 81 • “2060 Camera-and-microphone board and sensor board” on page 82 Removal steps of the wireless LAN antenna assembly (for Lenovo 500w Yoga Gen 4 and wireless LAN model of Lenovo 300w Yoga Gen 4 only)
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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. Antenna locations Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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Wireless LAN auxiliary antenna (black) Wireless LAN main antenna (gray) Wireless WAN auxiliary antenna* (blue) * for selected models Chapter 5 Removing or replacing a FRU...
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Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual...
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.
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Trademarks LENOVO and LENOVO logo 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. Microsoft, 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.