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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).
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.
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. •...
– “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...
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.
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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...
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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.
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...
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. To use the diagnostic medium you have created, do one of the following: •...
To check the USB-C type ac power adapter, do the following: 1. Connect the computer to a power outlet and turn on the computer. 2. Start Lenovo Vantage program, and then click Hardware Settings ➙ Power. The ac power adapter information is displayed.
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Wire Voltage (V dc) +2.5 to +3.2 Black Ground • If the voltage is correct, replace the system board. • If the voltage is not correct, replace the coin-cell battery. • If the coin-cell battery discharges quickly after replacement, replace the system board. T495s and X395 Hardware Maintenance Manual...
Recovering your operating system if Windows 10 fails to start The Windows recovery environment on your computer is capable of operating independently from the Windows 10 operating system. This enables you to recover or repair the operating system even if the Windows 10 operating system fails to start.
If a master hard disk password has been set, it can be used to access the solid-state drive. If no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user hard disk password or the master hard disk password, or to recover data from the solid-state drive.
The solid- state drive can be replaced for a scheduled fee. To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the solid-state drive with a scheduled fee.
Power management To reduce power consumption, the computer has two power management modes: sleep and hibernation. Sleep mode When the computer enters sleep mode, the following events occur: • The LCD is powered off. • The solid-state drive is powered off. •...
Symptom-to-FRU index This section contains following information: • “Numeric error codes” on page 36 • “Error messages” on page 37 • “Beep errors” on page 38 • “No-beep symptoms” on page 39 • “LCD-related symptoms” on page 40 • “Intermittent problems” on page 41 •...
Table 2. Numeric error codes (continued) Symptom or error FRU or action, in sequence 0191 1. Run the ThinkPad Setup program, and then save System Security - Invalid Remote Change requested. current setting by pressing F10. 2. Replace the system board. 0199 1.
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.
Error codes Solutions 0001: Reset error (platform reset not de-asserted) 1. Remove the ac power adapter and the removable battery if your computer has one. Then, reset the computer by doing one of the following: • For models with the emergency-reset hole, insert a straightened paper clip into the emergency-reset hole.
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.
Intermittent problems Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, ESD, or software errors. FRU replacement should be considered only when a problem recurs. When analyzing an intermittent problem, do the following: 1.
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Enable or disable the built-in Bluetooth features. Open a keyboard setting page. Invoke the function defined by yourself: 1. Open the Start menu and click Lenovo Vantage. 2. Click Hardware Settings and then click Input. 3. Locate the Keyboard: User-defined Key section and follow the on-screen instructions to complete the setting.
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Equal the ScrLK or Scroll Lock key on a conventional external keyboard. Fn+K Equal the Pause key on a conventional external keyboard. Fn+P Equal the SysRq key on a conventional external keyboard. Fn+S Put the computer to sleep mode. To wake up the computer, press Fn or the power Fn+4 button.
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Bottom ThinkPad T495s ThinkPad X395 1. Docking-station hook holes 3. Speakers 2. Emergency-reset hole Locating FRUs and CRUs This topic introduces the following service parts: • “Major FRUs and CRUs” on page 52 • “LCD FRUs and CRUs” on page 57 •...
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.
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Coin-cell battery Keyboard assembly M.2 solid-state drive Thermal pad for M.2 solid-state drive Nano-SIM-card and microSD-card tray Lenovo factory recovery USB key* Power cord ac power adapter Miscellaneous parts kits (see “Miscellaneous parts” on page 59) * for selected models...
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RF absorber Keyboard bezel assembly Coin-cell battery Nano-SIM-card and microSD-card tray Keyboard Lenovo factory recovery USB key* Power cord ac power adapter Miscellaneous parts kits (see “Miscellaneous parts” on page 59) * for selected models T495s and X395 Hardware Maintenance Manual...
LCD FRUs and CRUs Table 8. LCD FRUs and CRUs FRU description Self-service Optional-service LCD bezel sheet LCD bezel LCD cable Camera and microphone module Aluminum foil (for ThinkPad T495s only) Chapter 6 Locations...
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Table 8. LCD FRUs and CRUs (continued) FRU description Self-service Optional-service LCD panel Microphone rubber Antenna kit LCD hinges Camera-and-microphone-module cable* LCD cover assembly * Depending on the computer model, the cable might look different from the illustration above. For more information about the cable types, see “2050 Camera-and-microphone-module cable and antenna kit”...
• 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 52 and “LCD FRUs and CRUs” on page 57.
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System board connectors and cables Table 10. System board connector and cable guide Connector/feature Internal cable required Cable connection Power button board connector Power-button-board cable Connect one end to the power (internal) button board and the other end to this connector. Camera connector (internal) camera-and-microphone-module Connect one end to the camera...
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Table 10. System board connector and cable guide (continued) Internal cable required Connector/feature Cable connection Connect a USB-C compatible USB-C connectors (USB 3.1 Gen 2) (external) device to this connector. Use a ThinkPad Ethernet Extension Ethernet extension connector Gen 2 (external) Adapter Gen 2 to connect your computer to a local area network (LAN) through this connector.
The keyboard assembly comes X395 (internal) with the cables. Connect the cables to these connectors. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup T495s and X395 Hardware Maintenance Manual...
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.
To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key. 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
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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 ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
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 .
Note: If the keyboard must be removed to access other FRUs, you need the keyboard removal tool (product part number: 01LX856) to remove the keyboard. You can purchase the tool as a separate FRU at https:// support.lenovo.com/partslookup T495s and X395 Hardware Maintenance Manual...
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. ThinkPad T495s ThinkPad X395 GEO and system label...
S/N label Asset tag Country label CMIT label 1030 M.2 solid-state drive and thermal pad For access, remove this FRU: • “1020 Base cover assembly” on page 71 Attention: The M.2 solid-state drive is sensitive. Inappropriate handling might cause damage and permanent loss of data.
Removal steps of wireless WAN card Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 2.2 mm, flat-head, nylon-coated (1) (1.85 kgf-cm) When installing: Plug the orange cable into the main connector, and the blue cable into the auxiliary connector on the card.
Step Screw (quantity) Color Torque M2 × 2.2 mm, flat-head, nylon-coated (1) Black 0.181 Nm (1.85 kgf-cm) When installing: Plug the orange cable into the main connector, and the blue cable into the auxiliary connector on the card. 1060 Docking-station-connector bracket For access, remove this FRU: •...
Removal steps of thermal fan assembly When installing: • Ensure that the connector is attached firmly. • Do not press the top of the fan cover and the fan hub. • Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustrations.
Removal steps of the USB cable Removal steps of the USB board Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) T495s and X395 Hardware Maintenance Manual...
The Lenovo Vantage 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. The only exception to this is if the battery is physically damaged or a customer is reporting a possible safety issue.
ThinkPad X395 Step Screw (quantity) Color Torque M2 × 4.5 mm, flat-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) When installing: • Ensure that the connector is attached firmly. • Ensure that the base cover assembly is secured in place. Otherwise, the battery connection may fail. T495s and X395 Hardware Maintenance Manual...
1100 Coin-cell battery DANGER Use only the authorized battery specified for the computer. Any other battery could ignite or explode. For access, remove these FRUs in order: • “1020 Base cover assembly” on page 71 • “1090 Built-in battery” on page 77 Removal steps of coin-cell battery When installing: Ensure that the connector is attached firmly.
Removal steps of trackpad cable When installing: Ensure that the connectors are attached firmly. 1120 Trackpad For access, remove these FRUs in order: • “1020 Base cover assembly” on page 71 • “1090 Built-in battery” on page 77 Removal steps of trackpad T495s and X395 Hardware Maintenance Manual...
Table 11. Screw specification (ThinkPad T495s) Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 2 mm, flat-head, nylon-coated (4) (1.85 kgf-cm) Table 12. Screw specification (ThinkPad X395) Step Screw (quantity) Color Torque M2 × 1.8 mm, flat-head, nylon-coated (4) Silver 0.181 Nm...
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ThinkPad X395 Step Screw (quantity) Color Torque M2 x (2.2 + 2.5) mm, flat-head, nylon-coated (4) Black 0.181 Nm (1.85 kgf-cm) When installing: • Ensure that the connector is attached firmly. T495s and X395 Hardware Maintenance Manual...
• Ensure that the cable is routed properly. 1140 Fingerprint-reader-and-smart-card-reader cable, fingerprint-reader cable, and smart-card-reader cable (for ThinkPad T495s only) For access, remove these FRUs in order: • “1020 Base cover assembly” on page 71 • “1090 Built-in battery” on page 77 ThinkPad T495s •...
ThinkPad X395 • Removal steps of the fingerprint-reader-and-smart-card-reader cable Note: For models without fingerprint reader, skip step • Removal steps of the fingerprint-reader cable When installing: Ensure that the connectors are attached firmly. 1150 Fingerprint-reader bracket and fingerprint reader For access, remove these FRUs in order: T495s and X395 Hardware Maintenance Manual...
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive surface. ThinkPad T495s and ThinkPad X395 share a common system board. After replacing the system board, you will be prompted to input a brand name to correctly identify the machine type. The following table contains the brand name required to complete this step.
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ThinkPad T495s ThinkPad X395 • “1020 Base cover assembly” on page 71 • “1010 Keyboard (for ThinkPad X395 only)” on page 68 • “1030 M.2 solid-state drive and thermal pad” on page • “1020 Base cover assembly” on page 71 •...
Torque Step Screw (quantity) Color M2 × 3 mm, flat head, nylon-coated (4) Silver 0.181 Nm (1.85 kgf-cm) M2 × 2.2 mm, flat head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the connectors are attached firmly. Chapter 8 Removing or replacing a FRU...
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ThinkPad X395 Torque Step Screw (quantity) Color M2 × 3 mm, flat head, nylon-coated (3) Silver 0.181 Nm (1.85 kgf-cm) M2 × 2.2 mm, flat head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) T495s and X395 Hardware Maintenance Manual...
When installing: Ensure that the connectors are attached firmly. Attention: The Central Processing Unit (CPU) soldered on the top side of the system board is extremely sensitive. When you service the system board, avoid any kind of rough handling. 1180 Power-button-board cable and power button board Removal steps of the power-button-board cable For access, remove this FRU: •...
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Removal steps of the power button board For access, remove these FRUs in order: ThinkPad T495s ThinkPad X395 • “1020 Base cover assembly” on page 71 • “1010 Keyboard (for ThinkPad X395 only)” on page 68 • “1030 M.2 solid-state drive and thermal pad” on page •...
When installing: Ensure that the connector is attached firmly. 1190 LCD unit For access, remove this FRU: • “1020 Base cover assembly” on page 71 Removal steps of LCD unit Table 13. Screw specification (ThinkPad T495s) Step Screw (quantity) Color Torque 0.294 Nm...
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. 1200 Keyboard assembly (for ThinkPad T495s) or Keyboard bezel assembly (for ThinkPad X395)
2010 LCD bezel sheet and LCD bezel For access, remove these FRUs in order: • “1020 Base cover assembly” on page 71 • “1190 LCD unit” on page 93 Removal steps of LCD bezel sheet and LCD bezel When installing: After the LCD bezel sheet is removed, it cannot be used anymore. A new LCD bezel sheet is required for replacement.
Table 15. Screw specification for ThinkPad T495s Step Screw (quantity) Color Torque Black 0.294 Nm M2.5 × 2.3 mm, flat-head, nylon-coated (4) (3.0 kgf-cm) Table 16. Screw specification for ThinkPad X395 Step Screw (quantity) Color Torque M2.5 × 2.5 mm, flat-head, nylon-coated (4) Black 0.294 Nm...
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Note: Depending on the type of the camera-and-microphone-module cable, the disconnection steps of the cable might be different from the following illustrations. For more information, see “” on page . Removal steps of the camera and microphone module and aluminum foil (for ThinkPad T495s only) Removal steps of the camera and microphone module...
2050 Camera-and-microphone-module cable and antenna kit For access, remove these FRUs in order: • “1020 Base cover assembly” on page 71 • “1190 LCD unit” on page 93 • “2010 LCD bezel sheet and LCD bezel” on page 95 • “2020 LCD hinges” on page 95 •...
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ThinkPad T495s ThinkPad X395 For models with IR camera, microphone, and system For models with IR camera, microphone, and system status indicator status indicator For models with conventional camera, microphone, and system status indicator For models with conventional camera, microphone, and...
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Removal steps of the camera-and-microphone-module cable Note: Depending on the type of the camera-and-microphone-module cable, the disconnection steps of the cable might be different from the following illustration. For models without camera, skip the disconnection steps of the cable. Removal steps of the antenna kit Attention: When you route the cables, ensure that they are not subject to any tension.
• “2020 LCD hinges” on page 95 • “2030 LCD panel and LCD cable” on page 96 • “2040 Camera and microphone module and aluminum foil (for ThinkPad T495s only)” on page 96 • “2050 Camera-and-microphone-module cable and antenna kit” on page 98...
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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.
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EU Contact: Lenovo (Slovakia), Landererova 12, 811 09 Bratislava, Slovakia Trademarks LENOVO, LENOVO logo, THINKPAD, THINKPAD logo, and TRACKPOINT are trademarks of Lenovo. Thunderbolt is trademark of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Microsoft and Windows 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.