Lenovo K14 Gen 1 Hardware Maintenance Manual
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Lenovo K14 Gen 1 Hardware Maintenance Manual

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Lenovo K14 Gen 1
Hardware Maintenance Manual

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  • Page 1 Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 2 Second Edition (May 2022) © Copyright Lenovo 2021, 2022. 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

    1060 Coin-cell battery ... . Hibernation mode ... . 1070 Heatsink ....© Copyright Lenovo 2021, 2022...
  • Page 4 2010 LCD bezel ....2020 LCD hinges ....Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 5: About This Manual

    Lenovo K14 Gen 1 Machine types (MT): 21CS, 21CT, 21CU, 21CV ® Lenovo K14 Gen 1 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 Lenovo K14 Gen 1 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, 2022...
  • Page 8 This practice ensures correct grounding of the units. • If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. – Send another person to get medical aid. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • 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

    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 Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 DANGER Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 13 PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 15 PERIGO PERIGO PERIGO DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER DANGER Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 17 DANGER VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT VORSICHT Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Lenovo K14 Gen 1 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, 2022...

  • 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: Uefi Diagnostic Program

    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 devices, the LCD, and system board buses.

  • Page 32: Power System Checkout

    • If the computer does not charge during operation, go to “Checking the built-in battery and operational charging” on page 27. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 33: Checking The Built-In Battery And Operational Charging

    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 • If the coin-cell battery discharges quickly after replacement, replace the system board. Lenovo K14 Gen 1 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: Supervisor Password

    To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the storage drive with a scheduled fee.

  • Page 37: How To Remove The System Management Password

    To remove a user hard disk password that has been forgotten, when the supervisor password and master hard disk password are known, do the following: 1. Turn on the computer. 2. When the logo screen comes up, immediately press F1 to enter the Setup program. When the power-on password icon is displayed on the screen, enter either the power-on password or the supervisor password.

  • Page 38: Power Management

    When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the solid-state drive is read, and system status is restored from the solid-state drive. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 39: Symptom-To-Fru Index

    Symptom-to-FRU index This section contains following information: • “Numeric error codes” on page 33 • “Error messages” on page 34 • “Beep errors” on page 35 • “No-beep symptoms” on page 37 • “LCD-related symptoms” on page 37 • “Intermittent problems” on page 37 •...

  • Page 40: Error Messages

    Symptom or error FRU or action, in sequence Fan error. 1. Replace the fan. (two short beeps) 2. Apply thermal grease. 3. Replace the system board. Thermal sensing error. Replace the system board. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 41: Beep Errors

    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 0288: Computer display error (customer or service provider). • If the external display works, replace the LCD panel (service provider only). • If the external display does not work, replace the system board (service provider only). Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • 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: Undetermined Problems

    6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU): a. System board b. LCD assembly Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 45: Chapter 5. Special Keys

    Answer incoming calls on Microsoft Teams. Decline incoming calls on Microsoft Teams. Open the Windows Calculator. Open Lenovo Vantage, Lenovo PC Manager, or an app launch bar. Open the Windows snipping tool. Invoke the special function printed as an icon on each key or standard function of F1–F12 function keys.
  • Page 46 Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 47: Chapter 6. Locations

    Chapter 6. Locations Locating computer controls and connectors Front Microphone Camera Webcam privacy shutter © Copyright Lenovo 2021, 2022...

  • Page 48: Base

    Base Power button / Fingerprint reader Trackpad power button * * for selected models Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 49: Left

    Left ® Always On USB 3.0 connector Power connector / USB-C connector HDMI™ connector USB-C connector Audio connector Chapter 6 Locations...

  • Page 50: Right

    Right USB 2.0 connector Ethernet connector Nano security-lock slot Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 51: Bottom

    Bottom Speakers Chapter 6 Locations...

  • Page 52: 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 53: Major Frus And Crus

    Major FRUs and CRUs Chapter 6 Locations...
  • Page 54 See “Miscellaneous parts” on page 50. * The LCD module as a whole is not an FRU, it contains FRUs as its components. Note: Depending on the computer model, your computer might look different from the illustration above. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 55: Lcd Frus And Crus

    LCD FRUs and CRUs Table 7. LCD FRUs and CRUs FRU (CRU) category Self-service CRU Optional-service CRU LCD bezel LCD panel Chapter 6 Locations...

  • Page 56: 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 47 and “LCD FRUs and CRUs” on page 49.
  • Page 57 System board connectors and cables Chapter 6 Locations...
  • Page 58 The thermal fan comes with the cable. Connect the cable to this connector Trackpad connector (internal) Trackpad cable Connect one end of the cable to the trackpad and the other end to this connector. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 59: Looking Up Fru Information

    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 60 Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 61: 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, 2022...

  • Page 62: Retaining Serial Numbers

    Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo is displayed, press Esc. The Config Information Update Utility interface is displayed.

  • Page 63: Retaining The Uuid

    To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO Hardware Maintenance Diskette or Maintenance Key. 1. Insert the latest version of LENOVO Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
  • Page 64 Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed to be the same as the machine type of the machine that had the ECA applied to it. 1. Insert the latest version of LENOVO Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.

  • Page 65: 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, 2022...

  • Page 66: 1010 Base Cover Assembly

    Wait three to five minutes to let the computer cool. 1010 Base cover assembly Removal steps Torque Step Screw (quantity) Color M2 × 6 mm, flat-head, nylon-coated (6) Black 1.85kg±0.15 M2 × 4 mm, flat-head, nylon-coated (4) Black 1.85kg±0.15 Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 67: 1020 Hard Disk Drive, Cable And Bracket (For 38 W Built-In Battery Model)

    For the labels that are not shipped with the new base cover assembly, peel them from the old base cover assembly, and adhere them to the new one. GEO label Lenovo ATS label Asset tag label Country label...
  • Page 68 Removal steps Step Screw (quantity) Color Torque Black 1.85kg±0.15 M2 × 5 mm, flat-head, nylon-coated (4) Step Screw (quantity) Color Torque M3 × 3 mm, flat-head, nylon-coated (4) Silver 3kg±0.3 Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 69: 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 70: 1040 M.2 Solid-State Drive And Thermal Pad

    Removal steps Note: Disconnect the battery pack cable from the system board. Use your fingernails to pull the connector to unplug it. Do not pull the cable. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 71: 1050 Wireless Lan Card

    Torque Step Screw (quantity) Color M2 × 2.5 mm, flat-head, nylon-coated (1) Black 1.85kg±0.15 1050 Wireless LAN card For access, remove this FRU: • “1010 Base cover assembly” on page 60 Removal steps Note: Disconnect the battery pack cable from the system board. Use your fingernails to pull the connector to unplug it.

  • Page 72: 1060 Coin-Cell Battery

    • “1010 Base cover assembly” on page 60 Removal steps Note: Disconnect the battery pack cable from the system board. Use your fingernails to pull the connector to unplug it. Do not pull the cable. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 73: 1070 Heatsink

    When installing: • Ensure that the connector is attached firmly. • Reset the system date and time in the BIOS menu. 1070 Heatsink For access, remove this FRU: • “1010 Base cover assembly” on page 60 Removal steps Note: Disconnect the battery pack cable from the system board. Use your fingernails to pull the connector to unplug it.

  • Page 74: 1080 Thermal Fan

    M2 × 4 mm, flat-head, nylon-coated (3) Black 1.85kg±0.15 When installing: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 75: 1090 Memory Module

    1090 Memory module For access, remove this FRU: • “1010 Base cover assembly” on page 60 Removal steps Note: Disconnect the battery pack cable from the system board. Use your fingernails to pull the connector to unplug it. Do not pull the cable. When installing: Insert the notched end of the memory into the socket.
  • Page 76 Removal steps Torque Step Screw (quantity) Color M2.5 × 5 mm, flat-head, nylon-coated (2) Black 3kg±0.3 Step Screw (quantity) Color Torque M2 × 2.8mm, flat-head, nylon-coated (1) Black 1.85kg±0.15 Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 77: 1110 Power Button Board / Fingerprint Reader Power Button Board

    When installing: Ensure that the connector is attached firmly. 1110 Power button board / Fingerprint reader power button board For access, remove these FRUs in order: • “1010 Base cover assembly” on page 60 • “1020 Hard disk drive, cable and bracket (for 38 W built-in battery model)” on page 61 •...

  • Page 78: 1120 System Board

    The following table contains the brand name required to complete this step. Note: Input the exact brand name as shown in this table. Lenovo K14 Gen 1 Machine types (MT): 21CS, 21CT, 21CU, 21CV Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 79 Removal steps Step Screw (quantity) Color Torque M2.5 × 5 mm, flat-head, nylon-coated (2) Black 3kg±0.3 Chapter 8 Removing or replacing a FRU...

  • Page 80: 1130 Lcd Unit

    • “1010 Base cover assembly” on page 60 Removal steps Note: Disconnect the battery pack cable from the system board. Use your fingernails to pull the connector to unplug it. Do not pull the cable. Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 81: 1140 Upper Case

    Table 10. Screw specification Step Screw (quantity) Color Torque M 2.5 × 5 mm, flat-head, nylon-coated (4) Black 3kg±0.3 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 82: 2010 Lcd Bezel

    2020 LCD hinges For access, remove these FRUs in order: • “1010 Base cover assembly” on page 60 • “1130 LCD unit” on page 74 • “2010 LCD bezel” on page 76 Removal steps Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 83: 2030 Lcd Panel And Elastic Adhesive Tapes

    Table 11. Screw specification Step Screw (quantity) Color Torque Black 1.5kg±0.15 M2 × 2 mm, flat-head, nylon-coated (6) 2030 LCD panel and elastic adhesive tapes For access, remove these FRUs in order: • “1010 Base cover assembly” on page 60 •...

  • Page 84: 2040 Lcd Cable

    • “2010 LCD bezel” on page 76 • “2020 LCD hinges” on page 76 • “2030 LCD panel and elastic adhesive tapes” on page 77 • “2040 LCD cable” on page 78 Removal steps Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 85: 2060 Camera Module

    2060 Camera module For access, remove these FRUs in order: • “1010 Base cover assembly” on page 60 • “1130 LCD unit” on page 74 • “2010 LCD bezel” on page 76 • “2020 LCD hinges” on page 76 • “2030 LCD panel and elastic adhesive tapes” on page 77 •...
  • Page 86 Lenovo K14 Gen 1 Hardware Maintenance Manual...

  • Page 87: 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 88 Trademarks LENOVO and LENOVO logo are trademarks of Lenovo. Intel and Intel Optane 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. Microsoft, Microsoft Teams, Windows, BitLocker, and Cortana are trademarks of the Microsoft group of companies.

  • Page 89: 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, 2022...
  • Page 90 Lenovo K14 Gen 1 Hardware Maintenance Manual...
  • Page 92 Part Number: SP40T10634 Printed in China (1P) P/N: SP40T10634 *1PSP40T10634*...

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