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Lenovo ThinkPad Hardware Maintenance Manual

P1 gen 4 and x1 extreme gen 4
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P1 Gen 4 and X1 Extreme Gen 4
Hardware Maintenance Manual

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  Summary of Contents for Lenovo ThinkPad

  • Page 1 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 2 Appendix A “Notices” on page 91. First Edition (August 2021) © Copyright Lenovo 2021. 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

    ....How to remove the system management 1040 Memory module ..password ....© Copyright Lenovo 2021...
  • Page 4 1050 Built-in battery ... 1130 Trackpad and trackpad cable ..1060 Thermal fan assembly ..1140 Power button with fingerprint reader assembly .
  • Page 5: About This Manual

    Use this manual along with the advanced diagnostic tests to troubleshoot problems. • 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 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 7: Chapter 1. Safety Information

    Chapter 1. Safety information This chapter presents following safety information that you must be familiar with before you service a ThinkPad notebook computer. • “General safety” on page 1 • “Electrical safety” on page 1 • “Safety inspection guide” on page 2 •...
  • 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-ThinkPad 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-ThinkPad alterations. Use good judgment as to the safety of any non- ThinkPad 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

    – When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems. – Use the round ground prong of the ac plug on ac-operated computers. Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function.
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 15 PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 P1 Gen 4 and X1 Extreme Gen 4 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 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. Chapter 2 Important service information...
  • Page 30 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 31: Chapter 3. General Checkout

    Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use. © Copyright Lenovo 2021...
  • Page 32: Checkout Guide

    Note: If you are unable to isolate and repair the problem yourself after running Lenovo Companion, 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: Quick Test Programs

    If an error code is displayed, go to “Symptom-to-FRU index” on page 35 for error code descriptions and troubleshooting hints. 2. When the ThinkPad logo is displayed, repeatedly press and release the F10 key. The main screen of the UEFI diagnostic program is displayed.
  • Page 34: Power System Checkout

    3. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key. 4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program will be launched automatically.
  • 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 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 37: Chapter 4. Related Service Information

    3. Click Diagnostics ➙ Operating system Diagnostics and then follow the on-screen instructions. Passwords As many as four passwords may be needed for any ThinkPad notebook computer: the power-on password, the NVMe password, the supervisor password, and the system management password.
  • Page 38: Supervisor Password

    The supervisor password protects the system information stored in the ThinkPad Setup program. It provides the following security features: • If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPad Setup program. Unauthorized users cannot change most of the system configuration options in the ThinkPad Setup program without the password.
  • Page 39: How To Remove The Nvme Password

    1. Turn on the computer. 2. When the ThinkPad logo comes up, immediately press F1 to enter the UEFI BIOS. Enter either the power-on password or the supervisor password in the window displayed on the screen.
  • Page 40: Power Management

    7. Type the current supervisor password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice. 8. In the Changes have been saved window, press Enter. 9. Press F10 to save changes and exit the ThinkPad Setup program. The system management password has been removed. Power management To reduce power consumption, the computer has three power management modes: screen blank, sleep, and hibernation.
  • Page 41: Hibernation Mode

    If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 39. Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.
  • Page 42: Numeric Error Codes

    Bad SVP data, stop POST task—The checksum of the supervisor password in the EEPROM is not correct. 0183 1. Run the ThinkPad Setup program, and then save Bad CRC of Security Settings in EFI Variable. Enter the current setting by pressing F10.
  • Page 43: Error Messages

    UEFI variable storage using the preceding solution. 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: https://support.lenovo.com/smartbeep...
  • 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: Lcd-Related 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: Undetermined Problems

    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 b. Printer, mouse, and other external devices c. External diskette drive or optical drive d.
  • Page 47: Chapter 5. Use The Keyboard Shortcuts

    Open / collapse notification center Answer incoming calls on Microsoft Teams Decline incoming calls on Microsoft Teams Customize the function of this key on the Vantage app Open Snipping Tool Toggle keyboard backlight (for selected models) Break operation © Copyright Lenovo 2021...
  • Page 48 Pause operation 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 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 49: Chapter 6. Locations

    Chapter 6. Locations Computer controls, connectors, and indicators This section introduces hardware features of the computer. Front view Webcam privacy shutter Infrared camera* / Camera* Microphone Power button with fingerprint reader ® Speaker TrackPoint pointing stick © Copyright Lenovo 2021...
  • Page 50 Trackpad TrackPoint buttons Touch screen* * for selected models P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 51: Side View

    Side view USB-C (Thunderbolt 4) connector Power connector Audio connector SD card reader Nano-SIM-card tray USB 3.2 connector Gen 1 Always on USB 3.2 connector Gen 1 Security-lock slot Bottom view Chapter 6 Locations...
  • 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: Major Frus

    Major FRUs Table 4. Major FRUs and CRUs FRU description Self-service CRU Optional-service CRU LCD assembly Keyboard bezel assembly Power button with fingerprint reader cable Chapter 6 Locations...
  • Page 54 Miscellaneous parts kits * for selected models ® Note: 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/...
  • Page 55: Miscellaneous Parts And Other Frus

    • Other mylars Spec Connector and cable guide This section 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” on page 47.
  • Page 56 System board and keyboard subcard connectors (type A) Internal cable required Connector/feature Cable connection 1 13 Thermal fan connectors (internal) Thermal fan assembly cable The thermal fan assembly come with two cables. Connect one cables to this connector. LCD cable connector (internal) LCD cable Connect one end to the LCD panel and the other end to this...
  • Page 57 Connector/feature Internal cable required Cable connection Memory module slots (internal) Insert the memory modules into these slots. Built-in battery connector (internal) Connect the built-in battery directly to this connector. Trackpad connector (internal) Trackpad cable Connect one end of the trackpad cable to the trackpad and the other end to this connector.
  • Page 58 System board and keyboard subcard connectors (type B) Internal cable required Connector/feature Cable connection 1 21 Thermal fan connectors (internal) Thermal fan assembly cable The thermal fan assembly comes with two cables. Connect the cables to these connectors. LCD cable connector (internal) LCD cable Connect one end to the LCD panel and the other end to this...
  • Page 59: Looking Up Fru Information

    TrackPoint pointing cap cable TrackPoint pointing cap cable Connect the TrackPoint pointing connector (internal) cap cable 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 60 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 61: 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 62: Screw Notices

    Screw notices Loose screws can cause a reliability problem. In the ThinkPad notebook computer, this problem is addressed with special nylon-coated screws that have the following characteristics: • They maintain tight connections. • They do not easily come loose, even with shock or vibration.
  • Page 63: Restoring The Serial Number Of The System Unit

    4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed. 5. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for Asset ID screen is displayed.
  • Page 64: Reading Or Writing The Eca Information

    4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed. 5. Type 2 under Enter the action desired, then press Enter. The Auto UUID generation utility interface is displayed. 6. Type y under Change UUID. OK? [Y/N], then press Enter. A new UUID is created and written. If a valid UUID already exists, it is not overwritten.
  • Page 65: 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 66: Before Servicing The Computer

    5. Clear the Turn on fast startup check box, and then click Save changes. To disable the built-in battery, do the following: 1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter ThinkPad Setup. 2. Select Config ➙ Power. The Power submenu is displayed.
  • Page 67: 1010 Base Cover Assembly

    1010 Base cover assembly Removal steps of the base cover assembly When installing 1. Install miscellaneous parts on base cover assembly depending on the type of you thermal fan. • For models with type A or type B thermal fan, refer to the following illustartion to install mylar marked in red, rubber marked in green and gasket (for wwan model only) makred in yellow on base cover assembly.
  • Page 68 • For models with type C thermal fan, refer to the following illustartion to install mylar marked in red, rubber marked in green and gasket (for wwan model only) makred in yellow on base cover assembly. Applying labels to the base cover: The following illustration shows the location of each label.
  • Page 69: 1020 Nano-Sim-Card Tray (For Selected Models)

    1020 Nano-SIM-card tray (for selected models) Removal steps of the nano-SIM-card tray 1030 Wireless WAN card (for selected models) For access, remove this FRU: • “1010 Base cover assembly” on page 61 Removal procedure for wireless WAN card with four antennas Step Screw (quantity) Color...
  • Page 70: 1050 Built-In Battery

    The only exception to this is if the battery is physically damaged or a customer is reporting a possible safety issue. 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 71 When installing: Ensure that you apply the insulation sheet to the battery connector. Step Screw (quantity) Color Torque M2.0 × L3.5 mm, flat-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) When installing: • Apply the battery sponges to the new battery as shown before installing it. •...
  • Page 72: 1060 Thermal Fan Assembly

    1060 Thermal fan assembly Note: Depending on model, there are three types of thermal fan configuration. Refer to the descriptions and illustrations below before servicing your computer. For access, remove this FRU: • “1010 Base cover assembly” on page 61 Removal steps of the thermal fan assembly (type A) P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 73 Note: Loosen the screws in ascending alphabetical order as illustrated. Chapter 8 Removing or replacing a FRU...
  • Page 74 When installing: • Do not touch the top and bottom areas marked in the following illustration. • Tighten the screws in ascending order by following the number marked beside each screw. Otherwise, the system board might get damaged. • Ensure that the connector is attached firmly. Removal steps of the thermal fan assembly (type B) P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 75 Note: Loosen the screws in ascending alphabetical order as illustrated. When installing: • Do not touch the top and bottom areas marked in the following illustration. Chapter 8 Removing or replacing a FRU...
  • Page 76 • Tighten the screws in ascending order by following the number marked beside each screw. Otherwise, the system board might get damaged. • Ensure that the connector is attached firmly. Removal steps of the thermal fan assembly (type C) P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 77 Note: Loosen the screws in ascending alphabetical order as illustrated. Chapter 8 Removing or replacing a FRU...
  • Page 78: 1070 Speaker Assembly

    When installing: • Do not touch the top and bottom areas marked in the following illustration. • Tighten the screws in ascending order by following the number marked beside each screw. Otherwise, the system board might get damaged. • Ensure that the connector is attached firmly. 1070 Speaker assembly For access, remove this FRU: •...
  • Page 79: 1080 Coin-Cell Battery

    When installing: Straighten the speaker cable. Ensure that the cable is not pinched by any components. 1080 Coin-cell battery For access, remove this FRU: • “1010 Base cover assembly” on page 61 Removal steps of the coin-cell battery Note: For wireless WAN model, there might be a mylar covering the coin-cell battery. Remove the mylar first before replacement.
  • Page 80 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: • Replace the M.2 solid-state drive only for upgrade or repair. The M.2 solid-state drive is not designed for frequent changes or replacement.
  • Page 81 Removal steps of the M.2 solid-state drive Gen 4 Step Screw (quantity) Color Torque M2 × L2 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) When installing: If the thermal pads installed in the M.2-solid-state-drive slots are broken, replace them with new ones.
  • Page 82: 1100 Wireless Wan Antenna Assembly With Sensor Cable

    3. Go to Settings ➙ Restore profiles. The app will read the serial number of the computer and download its unique color profile from Lenovo cloud. 1100 Wireless WAN antenna assembly with sensor cable For access, remove this FRU: •...
  • Page 83 When installing: Ensure that the connector is attached firmly. Chapter 8 Removing or replacing a FRU...
  • Page 84: 1110 Dc-In Bracket And Dc-In Cable

    1110 dc-in bracket and dc-in cable For access, remove these FRUs in order: • “1010 Base cover assembly” on page 61 Removal steps of the dc-in bracket and dc-in cable Step Screw (quantity) Color Torque M2.5 × L5.0 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3 kgf-cm)
  • Page 85: 1120 Keyboard Subcard And Keyboard-Subcard Cable

    Ensure that the connector is attached firmly. 1120 Keyboard subcard and keyboard-subcard cable For access, remove this FRU: • “1010 Base cover assembly” on page 61 • “1050 Built-in battery” on page 64 Removal steps of the keyboard subcard and keyboard-subcard cable Chapter 8 Removing or replacing a FRU...
  • Page 86: 1130 Trackpad And Trackpad Cable

    When installing: Ensure that the connector is attached firmly. 1130 Trackpad and trackpad cable For access, remove this FRU: • “1010 Base cover assembly” on page 61 • “1050 Built-in battery” on page 64 Removal steps of the trackpad and trackpad cable Note: There might exist a waterproof mylar covering the trackpad, remove the mylar before replacement.
  • Page 87 Step Screw (quantity) Color Torque M2 × L2 mm, flat-head, nylon-coated (7) Silver 0.181 Nm (1.85 kgf-cm) When installing: 1. A trackpad jig might come with the trackpad which is used for fixing the location of the trackpad. Attach the trackpad jig to the trackpad and bend the four angles as shown by arrows below. 2.
  • Page 88: 1140 Power Button With Fingerprint Reader Assembly

    Notes: • A mylar might cover the trackpad, and ensure that you attach the mylar to the trackpad after replacement. • Ensure that the connector is attached firmly. 1140 Power button with fingerprint reader assembly For access, remove this FRU: •...
  • Page 89: 1150 Lcd Unit

    1150 LCD unit For access, remove these FRUs in order: • “1010 Base cover assembly” on page 61 Removal steps of the LCD unit Chapter 8 Removing or replacing a FRU...
  • Page 90 Step Screw (quantity) Color Torque M2.5 × L5 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3.0 kgf-cm) M2.5 × L5 mm, flat-head, nylon-coated (5) Black 0.294 Nm (3.0 kgf-cm) P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 91: 1160 System Board And Buzzer With Cable

    When installing: • Ensure that the connector is attached firmly. 1160 System board and buzzer with cable 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.
  • Page 92 Removal steps of the system board P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 93 Torque Step Screw (quantity) Color M2.0 × L3.5 mm, flat-head, nylon-coated (13) Black 0.181 Nm (1.85 kgf-cm) M2.0 × L6 mm, flat-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Attention: To avoid damage, do not bend the system board. Chapter 8 Removing or replacing a FRU...
  • Page 94 For WWAN model, when installing: • Ensure that you install the buzzer at the backside of the system board. • Ensure that you install the PCH mylar, memory module mylars, coin cell battery mylar and WWAN gasket as shown below. •...
  • Page 95: 1170 Keyboard Assembly

    For WLAN model, when installing: • Ensure that you install the buzzer at the back side of the system board. • Ensure that you install the memory module mylar as shown below. • Ensure that you install the M.2 solid-state drive thermal pads as shown below and then remove the dust protection film of the thermal pad installed.
  • Page 96 • “1120 Keyboard subcard and keyboard-subcard cable” on page 79 • “1130 Trackpad and trackpad cable” on page 80 • “1140 Power button with fingerprint reader assembly” on page 82 • “1150 LCD unit” on page 83 • “1160 System board and buzzer with cable” on page 85 P1 Gen 4 and X1 Extreme Gen 4 Hardware Maintenance Manual...
  • Page 97: Appendix A. Notices

    Lenovo representative for information about 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 98 Trademarks LENOVO, LENOVO logo, THINKPAD, THINKPAD logo and TRACKPOINT are trademarks of Lenovo. Thunderbolt is a trademark of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Microsoft, Windows, and Cortana 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.
  • Page 100 Part Number: SP40T10165 Printed in (1P) P/N: SP40T10165...
  • Page 101 *1PSP40T10165*...