Lenovo Yoga Slim 9i Hardware Maintenance Manual
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Lenovo Yoga Slim 9i Hardware Maintenance Manual

Lenovo Yoga Slim 9i Hardware Maintenance Manual

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Hardware Maintenance Manual
Yoga Slim 9i (14", 10)

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Summary of Contents for Lenovo Yoga Slim 9i

  • Page 1 Hardware Maintenance Manual Yoga Slim 9i (14″, 10)
  • Page 2 First Edition (January 2025) © Copyright Lenovo 2025.

  • Page 3: Table Of Contents

    Service tools ....General guidelines ....Trademarks ....xlvii © Copyright Lenovo 2025...
  • Page 4 Hardware 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 Hardware 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 2025...

  • 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

    Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician. Safety notices (multilingual translations) The safety notices in this section are provided in the following languages: •...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Hardware Maintenance Manual...
  • Page 15 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Hardware 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 2025...

  • Page 28: Cru List

    • Damage caused by liquid spilled into the system • Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an incompatible card • Improper disc insertion or use of an external optical drive •...

  • 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. © Copyright Lenovo 2025...
  • Page 30 Figure 1. Exploded view Hardware Maintenance Manual...
  • Page 31 Table 2. FRU (CRU) categories FRU (CRU) category LCD module Note: The LCD module is an assembly FRU. Do not disassemble it. Antenna module Upper case FPC brackets I/O board cables Right I/O board 2242 solid-state drive (SSD) Solid-state drive (SSD) thermal pad Heat sink Rubber foot Speakers...
  • Page 32 Hardware Maintenance Manual...

  • Page 33: 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 34: Handling Thermal Interface Materials

    3. Follow the correct sequence in the steps for removing a FRU, as shown in the illustrations by the numbers in square callouts. 4. When removing a FRU, move it in the direction as shown by the arrow in the illustration. 5.

  • Page 35: Area On The System Board Where Thermal Interface Materials Are Applied

    Area Type Quantity TC-7006 0.143514 ml, 6.8 mm x 6.7 mm x 0.9 mm TC-7006 0.151183 ml, 16.3 mm x 5.3 mm x 0.5 mm Figure 2. 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.

  • Page 36: Remove The Rubber Foot

    Step 1. Place the computer upside down on a flat surface. Step 2. Remove the rubber foot. Figure 4. Remove the rubber foot Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Hardware Maintenance Manual...

  • Page 37: Remove The Lower Case

    M1.6 1.2±0.1 1.9±0.1 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Lower case Remove the battery pack Make sure the following FRUs (or CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case”...

  • Page 38: Remove The Antenna Module

    Quantity M2.0 2.3±0.2 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Battery pack Remove the antenna module Make sure the following FRUs (CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case”...
  • Page 39 Figure 7. Peel off two pieces of conductive fabrics Step 2. Remove four screws on the antenna module (label 1), detach the cable connectors (label 2), and then remove the antenna module (label 3). Figure 8. Remove the antenna module Table 6.

  • Page 40: Remove The Lcd Module

    Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Antenna Remove the LCD module Make sure the following FRUs (CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case” on page 31 “Remove the antenna module”...
  • Page 41 Figure 10. Remove two screws from the cable manager and then lift the FPC. Table 8. Screw measurements, torque and quantity Label Thread Length (mm) Torque (kgf.cm) Quantity M1.6 1.2±0.1 Step 3. Rotate the LCD module to an angle of 120 degrees and place the computer on a flat surface as shown (1), remove six screws from the hinge (2), and then remove the LCD module (3).

  • Page 42: After Replacement

    Length (mm) Torque (kgf.cm) Quantity 2.3±0.2 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: LCD module After replacement For the display with the factory color calibration feature, do the following to install new color profiles.

  • Page 43: Remove The Heat Sink

    Thread Length (mm) Torque (kgf.cm) Quantity 1.9±0.1 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Heat sink Remove the speakers Make sure the following FRUs (CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case”...
  • Page 44 Step 1. Disconnect FP FFC connectors (label 1, 2, 3, 4), and then remove FP FFC (label 5). Figure 13. Remove FP FFC Step 2. Disconnect the speaker cables from the system board (label 1). remove two screws (label 2), and then remove the speakers (label 3).

  • Page 45: Remove The Fan

    Thread Length (mm) Torque (kgf.cm) Quantity 1.7±0.1 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Speakers Remove the fan Make sure the following FRUs (or CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case”...

  • Page 46: Remove The System Board, I/O Board, And I/O Board Cable

    Fans Remove the system board, I/O board, and I/O board cable Make sure the following FRUs (or CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case” on page 31 “Remove the battery pack” on page 31 “Remove the heat sink”...
  • Page 47 Figure 17. Disconnect the TP FFC, backlight FPC, and keyboard FPC connectors Step 3. Remove eight screws (label 1) and then remove the system board with I/O boards and I/O board cables (label 2). Figure 18. Remove the system board with I/O boards and I/O board cables Table 13.

  • Page 48: Use A Golden Key U1 Tool To Flash-Write Key Id Information

    Length (mm) Torque (kgf.cm) Quantity M1.2 0.5±0.1 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: System board I/O board I/O board cable Use a Golden Key U1 tool to flash-write key id information...
  • Page 49 “Remove the battery pack” on page 31 “Remove the heat sink” on page 37 “Remove the speakers” on page 37 “Remove the fan” on page 39 Step 1. Remove the solid-state drive thermal pad. Figure 20. Remove the solid-state drive thermal pad Step 2.

  • Page 50: Remove The Upper Case (With Keyboard)

    Torque (kgf.cm) Quantity 1.7±0.1 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Solid-state drive Remove the upper case (with keyboard) Make sure the following FRUs (CRUs) have been removed. “Remove the rubber foot” on page 30 “Remove the lower case”...

  • Page 51: Appendix A. Label Locations

    Figure 22. Label layout on the back side of the base cover Table 16. All base cover labels Label Label description Label dimensions Applied country/region Carbon neutral label 43.11 mm x 16.2 mm OS label 22.501 mm x 16.077 mm © Copyright Lenovo 2025...
  • Page 52 Hardware Maintenance Manual...

  • Page 53: Trademarks

    Trademarks LENOVO, the LENOVO logo and Yoga are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2025 Lenovo.

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