ThinkPad X1 Nano Gen 2 Hardware Maintenance Manual
Third Edition (July 2022) © Copyright Lenovo 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. GS35F-05925.
Contents About this manual . . . . . . . . . . . . iii Chapter 1. Safety information . . . . . . 1 General safety . . . . . . . . . . . . . . Electrical safety . . . . . . . . . . . . . . Safety inspection guide . . . . . . . . . . . Handling devices that are sensitive to electrostatic discharge . . . . . . . . . . . . . . . . Grounding requirements . . . . . . . . . . Safety notices (multilingual translations) . . . . . . 1 . . 1 . . 3 . . 3 . . 4 . . 4 Chapter 2. Important service information . . . . .
1070 Speaker assembly near the built-in battery 1080 Trackpad, fingerprint reader and P-sensor cable . . . . . . . . . . . . . . . . . 1090 Trackpad . . . . . . . . . . . . . 1100 Fingerprint reader module and bracket . 1110 Wireless-LAN antenna assembly . . . . 1120 System board assembly . . . . . . . 1130 Wireless-WAN antenna assembly (for selected models) . . . . . . . . . . . . ii . . 65 . . . . . . . . . . 66 67 71 72 74 . .
About this manual This manual contains service and reference information for the following products: ThinkPad X1 Nano Gen 2 Machine types (MT): 21E8, 21E9 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 products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
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Chapter 1. Safety information This chapter presents following safety information that you need to be familiar with before you service a notebook computer.
Important: • Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. • Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges (ESD). Do not use this type of mat to protect yourself from electrical shock. • Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet.
Safety inspection guide The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad / non-Lenovo features or options not covered by this inspection guide.
2. Ensure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people. • Wear a grounded wrist strap against your skin to eliminate static on your body. • Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.
DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1.
DANGER 6 ThinkPad X1 Nano Gen 2 Hardware Maintenance Manual
PERIGO Chapter 1.
PERIGO PERIGO PERIGO PERIGO 8 ThinkPad X1 Nano Gen 2 Hardware Maintenance Manual
PERIGO PERIGO PERIGO DANGER DANGER Chapter 1.
DANGER DANGER DANGER DANGER DANGER 10 ThinkPad X1 Nano Gen 2 Hardware Maintenance Manual
DANGER VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1.
VORSICHT VORSICHT VORSICHT VORSICHT 12 ThinkPad X1 Nano Gen 2 Hardware Maintenance Manual
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Chapter 2.
How to use error message Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code might also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the section of “Symptom-toFRU index” on page 33.
Chapter 3. General checkout This chapter presents following information: • “What to do first” on page 23 • “Checkout guide” on page 24 – “Diagnosing problems” on page 24 – “Quick test programs” on page 25 – “UEFI diagnostic program” on page 25 – “Bootable diagnostic programs” on page 25 • “Power system checkout” on page 26 Some descriptions in this chapter might not apply to your particular computer. Before you go to the checkout guide, be sure to read the following important notes.
The following are not covered under warranty: • 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 • Damage caused by liquid spilled into the system • Damage caused by the improper insertion of a PC Card or the installation of an incompatible card • Diskette drive damage caused by pressure
Quick test programs Run quick test programs to troubleshoot and resolve computer problems, especially when the computer does not have the Vantage app installed. To download and install a quick test program, go to https://www.lenovo.com/diags, and follow the instructions on the Web site. To run a test using quick test program, do the following: 1. Go to the C:\SWTOOLS\ldiag directory. 2. Double-click the lsc_lite.exe file. 3. When the User Account Control window opens, click Yes. 4.
devices, the LCD, and system board buses. To use the bootable diagnostic program, you can create a bootable diagnostic medium using a USB device or disc. To create a bootable diagnostic medium, do the following: 1. Go to https://www.lenovo.com/diags. 2. Click Lenovo Bootable Diagnostics. 3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or disc.
• If the power problem occurs only when the docking station or the port replicator is used, replace the docking station or the port replicator. • 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. • If the computer does not charge during operation, go to “Checking the built-in battery and operational charging” on page 27.
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Chapter 4. Related service information This chapter presents following information: • “Reset or restore Windows” on page 29 • “Passwords” on page 29 • “Power management” on page 32 • “Symptom-to-FRU index” on page 33 Service Web site: 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.
The admin NVMe password is set and used by a system administrator. It enables the administrator to access any storage drive in a system or any computer connected in the same network. The administrator can also assign a user NVMe password for each computer in the network. The user of the computer can change the user NVMe password as desired, but only the administrator can remove the user NVMe password.
password and the power-on password, the system management password overrides the power-on password. How to remove the power-on password To remove the power-on password, do one of the following: If no supervisor password has been set, do the following to remove the power-on password: 1. Turn off the computer. 2. Remove the battery. For instructions on how to remove the battery, see “1060 Built-in battery” on page 64. 3. Turn on the computer and wait until the POST ends.
8. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The system management password has been removed. If a supervisor password has been set and is known to the service technician, do the following to remove the system management password: 1. Turn on the computer. 2. When the ThinkPad logo is displayed, immediately press F1. 3. Type the supervisor password to enter the ThinkPad Setup program. 4. Select Security. 5. Select Password. 6.
Note: If the computer enters the hibernation mode while it is connected to the dock, do not disconnect it before resuming normal operation. If you do disconnect it and then try to resume normal operation, you will get an error message, and you will have to restart the system. If you have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action. • Closing the lid. • Pressing the power button.
Numeric error codes Table 2. Numeric error codes Symptom or error FRU or action, in sequence 0177 Bad SVP data, stop POST task—The checksum of the supervisor password in the EEPROM is not correct. Replace the system board. 0183 Bad CRC of Security Settings in EFI Variable. Enter the ThinkPad Setup program. – The checksum of the Security settings in the EFI Variable is not correct. 1. Run the ThinkPad Setup program. The settings will be corrected automatically.
Table 2. Numeric error codes (continued) 2202 Product Name is invalid. Have the computer serviced. 2203 System configuration is invalid. Have the computer serviced. 2204 System configuration data is invalid. Have the computer serviced. Error messages Table 3. Error messages Symptom or error Fan error. (two short beeps) FRU or action, in sequence 1. Replace the fan. 2. Apply thermal grease. 3. Replace the system board. Thermal sensing error. Replace the system board.
4. Press the Fn key on your computer to emit the beep again. The diagnostic app decodes the beep error and shows possible solutions on the smartphone. 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 0287: Discrete graphics error Solutions 1. Reinstall or replace the discrete graphics card (service provider only). 2. If step 1 does not work, replace the system board (service provider only). 1. Reconnect the display cable on both the system board side and the computer display side (service provider only) and check the LCD panel. 0288: Computer display error 2. If step 1 does not work, connect an external display to your computer and check the status (customer or service provider).
• One pixel consists of R, G, B sub-pixels. LCD Self Test When you turn on the computer and the LCD goes black, run LCD Self Test to help you determine whether the LCD functions normally. To run LCD Self Test: 1. Ensure that the computer is connected to ac power. Then, press the power button for about seven seconds to turn off the computer. 2. Press Fn, left Ctrl, and the power button at the same time.
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. Devices attached to the dock c. Printer, mouse, and other external devices d. Battery e. Solid-state drive f. External diskette drive or optical drive g. Memory module h. PC cards 4. Turn on the computer. 5. Determine whether the problem has been solved. 6.
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Chapter 5. Special keys Invoke the special function printed as an icon on each key or standard function of F1–F12 function keys.
Send system request + Enter sleep mode + To wake up the computer, press Fn or the power button.
Chapter 6.
Fingerprint reader Trackpad TrackPoint buttons * for selected models Side view Audio connector USB-C® (Thunderbolt™ 4) power connector USB-C (Thunderbolt 4) connector Power button * for selected models 44 ThinkPad X1 Nano Gen 2 Hardware Maintenance Manual
Rear Nano-SIM-card tray * for selected models Bottom Emergency-reset hole Speaker Emergency-reset hole If the computer stops responding and you cannot turn it off by pressing the power button, reset your computer: 1. Disconnect your computer from ac power. 2. Insert a straightened paper clip into the hole to cut off power supply temporarily. 3. Connect your computer to ac power and then turn on your computer. Chapter 6.
Locating FRUs and CRUs This topic introduces the following service parts: • “Major FRUs and CRUs” on page 47 • “Miscellaneous parts” on page 49 • “Connector and cable guide” on page 49 Notes: • Each FRU is available for all types or models, unless otherwise specified. • CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.
Major FRUs and CRUs No. FRU descriptions Self-service CRU Optional-service CRU 1 LCD unit Note: LCD unit is a single FRU. No No 2 Thermal fan assembly No No Chapter 6.
No. FRU descriptions Self-service CRU Optional-service CRU 3 System board No No 4 2242 M.2 solid-state drive bracket Yes No 5 2242 M.
Miscellaneous parts Table 6. Miscellaneous part FRU descriptions Self-service CRU Optional-service CRU Screw kit • Screw M1.2 × L2.2 mm, Red (6) • Screw M1.6 × L2.6 mm, Black (12) • Screw M2 × L1.8 mm, Black (5) • Screw M2 × L2 mm, Black (6) • Screw M2 × L2.2 mm, Black (10) • Screw M2 × L2.3 mm, Silver (4) • Screw M2 × L3 mm, Black (5) • Screw M2 × L4.5 mm, Silver (6) • Screw M2.5 × L3.5 mm, Silver (6) • Screw M2 × L2.
System board connectors and cables (for selected models) Item Connector (location) Internal cable required Cable connection 1 Microphone, camera, user presence sensing sensor and LED connector (internal) The LCD unit comes with the cable. The LCD unit comes with the cable. Connect the cable to this connector. LCD connector (internal) The LCD unit comes with the cable. The LCD unit comes with the cable. Connect the cable to this connector.
Item Connector (location) Internal cable required Cable connection 12 P-sensor connector (internal) WWAN antenna assembly comes with the cable. The WWAN antenna assembly comes with the cable. Connect the cable to this connector. 13 Power button cable connector (internal) Yes Connect one end to the power button board, and one end to this connector 14 Wireless-WAN card slot (internal) No Insert a Wireless-WAN card into this slot.
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Chapter 7. FRU replacement notices Read this chapter carefully before replacing any FRU. Service tool kit Ensure that the following service tool kit is prepared before you service a notebook computer. No.
• Logic card to plastic Turn an additional angle of 180 degrees after the screw head touches the surface of the logic card. Notes: • Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step. • Ensure torque screwdrivers are calibrated correctly following country specifications.
5. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for Asset ID screen is displayed. 6. Type 2 under Enter the action desired, then press Enter. The serial number of each device in your computer is displayed; the serial number of the system unit is listed as follows: 20- Serial number 7. Record the serial number of the system unit. After you replace the system board, do the following to restore the serial number of the system unit: 1.
3. To read the ECA information, select 2. Read ECA/rework number from EEPROM and follow the instructions on the screen. To read the box build date, select 5. Read box build date from EEPROM, and follow the instruction on the screen. After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA's application. Use the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key to update the EEPROM. Note: Only the ECA number is stored in the EEPROM.
Chapter 8. Removing or replacing a FRU This chapter provides instructions on how to remove or replace a FRU. General guidelines When removing or replacing a FRU, be sure to observe the following general guidelines: 1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review Chapter 7 “FRU replacement notices” on page 53. 3.
5. Clear the Turn on fast startup check box, and then click Save changes. To disable the built-in battery: 1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS menu. 2. Select Config ➙ Power. The Power submenu is displayed. 3. Select Disable built-in battery and press Enter. 4. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off automatically. Wait three to five minutes to let the computer cool.
1010 Base cover assembly Removal steps of the base cover assembly Label locations on the base cover assembly The following illustration shows the location of each label. Chapter 8.
1 Country label 2 IMEI label 3 Asset tag 4 Asset tag_40Y917Y 5 Windows label 6 Serial number label 7 China CECP label 8 GEO label 9 GEO label 1020 2242 M.2 solid-state drive For access, remove this FRU: • “1010 Base cover assembly” on page 59 Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data.
Removal steps of the wireless-WAN card (for models with four antennas) Step Screw (quantity) Color Torque 2 M2 × L2.2 mm, big-hat, nylon-coated (1) Black 0.181 Nm (1.
Step Screw (quantity) Color Torque 2 M2 × L2.2 mm, big-hat, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that you connect the cables with different colors to the corresponding connectors on the card according to the illustrations above: the orange cable to the connector labeled ORANGE, the blue cable to the connector labeled BLUE.
1050 Power button board and power button board cable For access, remove this FRU: • “1010 Base cover assembly” on page 59 Removal steps of the power button board Step Screw (quantity) Color Torque 2 M2 × L2.2 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) Chapter 8.
Removal steps of the power button board cable Ensure that you remove the thermal fan before removing the power button board cable. Step Screw (quantity) Color Torque 2 M2 × L2.2 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) 1060 Built-in battery Important notices 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.
Removal steps of the built-in battery DANGER Use only the authorized battery specified for your computer. Any other battery could ignite or explode. Step Screw (quantity) Color Torque 1 M2 × L4.5 mm, flat-head, nylon-coated (6) Silver 0.181 Nm (1.85 kgf-cm) Note: After the built-in battery is removed or re-installed, Date/Time, power-on password and system management passwords are initialized. Press F1 to enter the ThinkPad Setup program to change Date/Time.
Removal steps of the speaker assembly near the built-in battery Step Screw (quantity) Color Torque 2 M2 × L2.3 mm, big-hat, nylon-coated (4) Gold 0.181 Nm (1.
Removal steps of the trackpad, fingerprint reader and P-sensor cable 1090 Trackpad For access, remove these FRUs in order: • “1010 Base cover assembly” on page 59 • “1060 Built-in battery” on page 64 Chapter 8.
Removal steps of the trackpad Step Screw (quantity) Color Torque 4 M2 × L1.8 mm, fine pitch, nylon-coated (4) Black 0.181 Nm (1.
Installation steps of trackpad 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. Chapter 8.
2. Install the trackpad with jig as shown. 3. Install the screws to fix the trackpad.
4. Remove the Jig. 1100 Fingerprint reader module and bracket For access, remove these FRUs in order: • “1010 Base cover assembly” on page 59 • “1060 Built-in battery” on page 64 Removal steps of the fingerprint reader module and bracket Chapter 8.
Step Screw (quantity) Color Torque 3 M2 × L1.8 mm, big-hat, nylon-coated (1) Black 0.181 Nm (1.
Removal steps of wireless-LAN antenna assembly Step Screw (quantity) Color Torque 6 M1.6 × L2.6 mm, flat-head, nylon-coated (4) Black 0.097 Nm (1.0 kgf-cm) 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.
Antenna locations a b Wireless-LAN antenna (main) Wireless-LAN antenna (auxiliary) When installing: Plug the gray cable into the main connector and the black cable into the auxiliary connector. 1120 System board assembly 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.
Removal steps of the system board assembly Step Screw (quantity) Color Torque 11 M2 × L2.2 mm, big-hat, nylon-coated (9) Black 0.181 Nm (1.85 kgf-cm) Chapter 8.
1130 Wireless-WAN antenna assembly (for selected models) Removal steps of wireless-WAN antenna assembly (for models with MIMO) For access, remove these FRUs in order: • “1010 Base cover assembly” on page 59 • “1020 2242 M.
Step Screw (quantity) Color Torque 1 M1.6 × L2.6 mm, flat-head, nylon-coated (4) Black 0.098 Nm (1.05 kgf-cm) 2 M2 × L2.2 mm, big-hat, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Chapter 8.
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 orange cable to the main connector, the blue cable to the auxiliary connector, the white and grey cable to the M1 connector, and the black and grey cable to the M2 connector.
Step Screw (quantity) Color Torque 4 M2 × L2.2 mm, big-hat, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) Chapter 8.
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 orange cable to the main connector, and the blue cable to the auxiliary connector.
• • • • • • “1020 2242 M.2 solid-state drive” on page 60 “1030 Wireless-WAN card (for selected models)” on page 60 “1040 Thermal fan assembly” on page 62 “1060 Built-in battery” on page 64 “1120 System board assembly” on page 74 “1130 Wireless-WAN antenna assembly (for selected models)” on page 76 Removal steps of the speaker assembly near the hinges Chapter 8.
Step Screw (quantity) Color Torque 3 M1.6 × L2.6 mm, flat-head, nylon-coated (2) Black 0.098 Nm (1.
Step Screw (quantity) Color Torque 5 M2.5 × L3.5 mm, flat-head, nylon-coated (6) Silver 0.294 Nm (3.0 kgf-cm) Chapter 8.
1160 Keyboard bezel assembly with keyboard To remove the keyboard bezel assembly, remove these FRUs in order: • “1010 Base cover assembly” on page 59 • “1020 2242 M.
Appendix A. Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local 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.
Trademarks LENOVO, LENOVO logo, THINKPAD, THINKPAD logo, TRACKPOINT, and ULTRACONNECT 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. 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.
Appendix B. Abbreviation table The following table lists all abbreviations used in this manual.
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Part Number: SP40T80527 Printed in China (1P) P/N: SP40T80527 *1PSP40T80527*
