Lenovo ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual
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Lenovo ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual

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ThinkPad X12 Detachable Gen 1
Hardware Maintenance Manual

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Summary of Contents for Lenovo ThinkPad X12 Detachable Gen 1

  • Page 1 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 2 Appendix A “Notices” on page 83. Third 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

    Power management ... . . 1080 Security-lock bracket ..Sleep mode ....© Copyright Lenovo 2021, 2022...
  • Page 4 1170 I/O bracket... . . Appendix A. Notices ..83 1180 NFC module, NFC module cable, and NFC antenna (for selected models) ..ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 5: About This Manual

    About this manual This manual contains service and reference information for ThinkPad X12 Detachable Gen 1, machine types (MT): 20UW and 20UV. Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: • This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
  • Page 6 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    Do not use this type of mat to protect yourself from electrical shock. © Copyright Lenovo 2021, 2022...

  • Page 8: Safety Inspection Guide

    If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

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

    0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the authorized type specified for your computer. Go to: https:// support.lenovo.com/partslookup c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.

  • 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 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 15 PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 27: Chapter 2. Important Service Information

    Lenovo Support Center are available at: https://pcsupport.lenovo.com/supportphonelist • Service training documents for Lenovo authorized service technicians are available at the following Web site. The disassembly and reassembly videos that show the FRU removal and replacement procedures are contained in the documents.

  • Page 28: Important Notice For Replacing A System Board

    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: Fru Identification

    FRU identification To identify FRUs for a product, do the following: 1. Go to https://support.lenovo.com/partslookup 2. Type the Machine Type in the corresponding field to get a general FRU list, or type the Serial Number for more detailed FRU information.
  • Page 30 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 31: 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 32: 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 33: 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 programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices.

  • Page 34: Power System Checkout

    • If the system status indicator does not blink three times when an ac power source is connected, check the power cord of the ac power adapter for correct continuity and installation. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 35: Checking The Battery And Operational Charging

    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 builder. The system does not support unauthorized batteries or batteries designed for other systems.
  • Page 36 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 37: Chapter 4. Related Service Information

    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 38: Supervisor Password

    If it has, it can be used for access to the hard disk drive. If no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user or the master hard disk password, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.

  • Page 39: How To Remove The Hard Disk Password

    To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive (HDD) or SSD with a scheduled fee.

  • Page 40: Power Management

    Symptom-to-FRU index This section contains following information: • “Numeric error codes” on page 35 • “Error messages” on page 37 • “Beep symptoms” on page 37 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 41: Numeric Error Codes

    • “No-beep symptoms” on page 39 • “LCD-related symptoms” on page 39 • “Intermittent problems” on page 40 • “Undetermined problems” on page 40 The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.
  • Page 42 Machine UUID is invalid. 2202 Have the computer serviced. Brand Name is invalid. 2203 Have the computer serviced. System configuration is invalid. 2204 Have the computer serviced. System configuration data is invalid. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 43: Error Messages

    UEFI variable storage using the preceding solution. Beep symptoms 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 44 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 45: No-Beep Symptoms

    LCD technology, but excessive pixel problems can cause viewing concerns.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. Notes: •...

  • Page 46: Intermittent Problems

    28. 1. Turn off the computer. 2. Visually check each FRU for damage. Replace any damaged FRU. 3. Remove or disconnect all of the following devices: a. Non-ThinkPad devices ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 47 b. Printer, mouse, and other external devices c. External diskette drive or optical drive d. Wireless cards 4. Turn on the computer. 5. Determine whether the problem has been solved. 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7.
  • Page 48 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 49: 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 Vantage app. Open Snipping Tool Toggle keyboard backlight Break operation Pause operation © Copyright Lenovo 2021, 2022...
  • Page 50 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 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 51: Chapter 6. Locations

    This topic introduces the locations of the computer controls, connectors, and indicators. Overview Webcam privacy shutter (Camera Infrared (IR) Camera* / Camera* cover) Microphone NFC mark* Speaker Volume up button Security-lock slot Volume down button ® Power connector (USB-C Nano-SIM-card tray /eSIM-card tray* © Copyright Lenovo 2021, 2022...

  • Page 52: Locating Frus And Crus

    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...
  • Page 53 When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.

  • Page 54: Major Frus

    Major FRUs ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 55 Security-lock bracket Hinges Power cord ac power adapter Miscellaneous parts (See “Miscellaneous parts and other FRUs” on page 50.) ThinkPad X12 Detachable Folio Keyboard* Lenovo Digital Pen* Lenovo Precision Pen* Kickstand Built-in battery Removable tape Pogo pin cable Back cover assembly...

  • Page 56: Miscellaneous Parts And Other Frus

    Label kit Connector and cable guide This section provides information for Lenovo authorized service technicians to help identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs” on page 48.

  • Page 57: Looking Up Fru Information

    Connect USB-C compatible devices to this (USB-C) (external) connector. Audio connector (external) Connect headphones or a headset to this connector. 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 58 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 59: Chapter 7. Fru Replacement Notices

    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 .

  • Page 60: Retaining Serial Numbers

    These numbers need to remain the same throughout the life of the computer. If you replace the system board, you must restore the serial number of the system unit to its original value. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 61: 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 is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

  • Page 62: Reading Or Writing The Eca Information

    If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 63: Chapter 8. Removing Or Replacing A Fru

    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 is available for downloading at https:// support.lenovo.com...

  • Page 64: Before Servicing The Computer

    If the computer you are servicing has a nano-SIM card installed, remove the nano-SIM card and the nano- SIM-card tray before you start the servicing. After you finish the servicing, ensure that you install the card and the tray back into the slot firmly. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 65: Removing A Major Fru

    Removing a major FRU This section provides instructions on how to remove a major FRU. 1010 LCD module Removal steps Chapter 8 Removing or replacing a FRU...
  • Page 66 Screw (quantity) Color Torque M2 × L3.5 mm, flat-head, nylon-coated (6) Black 0.181 Nm (1.85 kgf-cm) Label locations on the back cover assembly The following illustration shows the location of each label. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 67: 1020 Built-In Battery

    The Lenovo Solution Center program provides an automatic battery diagnostic test that determines if the battery is defective. A battery FRU should not be replaced unless this diagnostic test shows that the battery is defective.
  • Page 68 If the Lenovo Solution Center program is not installed on the computer, the customer should download and install the program to diagnose the battery, before getting a non-physically damaged battery replaced. Note that the replacement of a physically damaged battery is not covered by the warranty.

  • Page 69: 1030 Kickstand And Hinges

    1030 Kickstand and hinges For access, remove this FRU: • “1010 LCD module” on page 59 Removal steps Chapter 8 Removing or replacing a FRU...

  • Page 70: 1040 Lcd Cable

    • “1020 Built-in battery” on page 61 Removal steps 1050 Pogo pin cable For access, remove these FRUs: • “1010 LCD module” on page 59 • “1020 Built-in battery” on page 61 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 71: 1060 Volume Board And Cable

    Removal steps Step Screw (quantity) Color Torque M1.6 × L2.4 mm, flat-head, nylon-coated (4) Silver 0.098 Nm (1.05 kgf-cm) 1060 Volume board and cable For access, do the following : 1. Remove these FRUs: • “1010 LCD module” on page 59 •...

  • Page 72: 1070 Hook Holder For Bezel

    2. Disconnect the pogo pin cable from the system board. See “1050 Pogo pin cable” on page 64. 3. Remove the volume board and cable. See “1060 Volume board and cable” on page 65. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 73: 1080 Security-Lock Bracket

    Removal steps 1080 Security-lock bracket For access, remove this FRU: • “1010 LCD module” on page 59 Removal steps Step Screw (quantity) Color Torque Black 0.181 Nm M2 × L2.5 mm, flat-head, nylon-coated (2) (1.85 kgf-cm) 1090 USB-C board bracket For access, remove this FRU: •...

  • Page 74: 1100 Usb-C Board And Cable

    1100 USB-C board and cable For access, remove these FRUs: • “1010 LCD module” on page 59 • “1020 Built-in battery” on page 61 • “1090 USB-C board bracket” on page 67 Removal steps ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 75: 1110 Thermal Fan Assembly

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × L2.5 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) 1110 Thermal fan assembly For access, remove this FRU: • “1010 LCD module” on page 59 Removal steps When installing: • Ensure that the connector is attached firmly. Chapter 8 Removing or replacing a FRU...

  • Page 76: 1120 P-Sensor Cable

    • Never remove the drive while the system is operating or in sleep mode. Removal steps A Mylar film might cover the M.2 solid-state drive. To access the M.2 SSD, peel off the film first. ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 77: 1140 Speakers

    Torque Step Screw (quantity) Color M2 × L2.15 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) 1140 Speakers For access, remove these FRUs: • “1010 LCD module” on page 59 • “1110 Thermal fan assembly” on page 69 Removal steps 1150 Wireless-WAN card (for selected models) For access, remove this FRU: •...

  • Page 78: 1160 Power Board And Cable

    When installing: ensure that you connect the red cable to the main connector, and the blue cable to the auxiliary connector. 1160 Power board and cable For access, remove these FRUs: • “1010 LCD module” on page 59 • “1110 Thermal fan assembly” on page 69 Removal steps ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 79: 1170 I/O Bracket

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × L2.5 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) 1170 I/O bracket For access, remove this FRU: • “1010 LCD module” on page 59 Removal steps Torque Step Screw (quantity) Color M2 × L2.5 mm, flat-head, nylon-coated (3) Black 0.181 Nm (1.85 kgf-cm)

  • Page 80: 1190 Webcam Privacy Shutter

    Removal steps 1190 Webcam privacy shutter For access, remove this FRU: • “1010 LCD module” on page 59 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 81: 1200 Front Camera Module

    Removal steps 1200 Front camera module For access, remove these FRUs: • “1010 LCD module” on page 59 • “1190 Webcam privacy shutter” on page 74 Removal steps 1210 Rear camera For access, remove these FRUs: • “1010 LCD module” on page 59 •...

  • Page 82: 1220 Microphone Assembly

    • “1110 Thermal fan assembly” on page 69 • “1190 Webcam privacy shutter” on page 74 • “1200 Front camera module” on page 75 • “1210 Rear camera” on page 75 • “1220 Microphone assembly” on page 76 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 83: 1240 System Board

    Removal step 1240 System board Important notices for handling the system board When handling the system board, read the following: • The system board has an accelerometer, which can be broken when several thousands of G-forces are applied. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.

  • Page 84: 1250 Wireless-Lan Antenna Assembly

    • “1130 M.2 solid-state drive” on page 70 • “1180 NFC module, NFC module cable, and NFC antenna (for selected models)” on page 73 • “1170 I/O bracket” on page 73 • “1240 System board” on page 77 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 85 Removal steps 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. Chapter 8 Removing or replacing a FRU...

  • Page 86: 1260 Wireless-Wan Antenna Assembly (For Selected Models)

    • “1180 NFC module, NFC module cable, and NFC antenna (for selected models)” on page 73 • “1120 P-sensor cable” on page 70 • “1170 I/O bracket” on page 73 • “1240 System board” on page 77 ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...
  • Page 87 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. When installing: ensure that you connect the red cable to the main connector, and the blue cable to the auxiliary connector.
  • Page 88 * for selected models ThinkPad X12 Detachable Gen 1 Hardware Maintenance Manual...

  • Page 89: 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 90 Trademarks LENOVO, LENOVO logo, THINKPAD, THINKPAD logo and TRACKPOINT are trademarks of Lenovo. ® Microsoft and Windows are trademarks of the Microsoft group of companies. USB-C is a registered trademark of USB Implementers Forum. All other trademarks are the property of their respective owners.
  • Page 92 Part Number: SP40T80021_01 Printed in (1P) P/N: SP40T80021_01...
  • Page 93 *1PSP40T80021_01*...

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