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Lenovo 21C3S0RL00 User Manual
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Lenovo 21C3S0RL00 User Manual

Lenovo 21C3S0RL00 User Manual

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ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3
User Guide

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  • Page 1 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...
  • Page 2 Generic Safety and Compliance Notices Third Edition (June 2023) © Copyright Lenovo 2022, 2023. 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

    Purchase accessories ..Call Lenovo ....Before you contact Lenovo ..
  • Page 4 Appendix B. Notices and trademarks ....67 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 5: Discover Your Lenovo Notebook

    Discover your Lenovo notebook ® Thank you for choosing a Lenovo notebook! We are dedicated to delivering the best solution to you. Before starting your tour, please read the following information: • Illustrations in this documentation might look different from your product.
  • Page 6 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 7: Chapter 1. Meet Your Computer

    Chapter 1. Meet your computer Front view L14 Gen 3 © Copyright Lenovo 2022, 2023...
  • Page 8 L15 Gen 3 Description Description Item Item Webcam privacy shutter Infrared camera / Camera Microphone Touch screen ® Power button with fingerprint reader TrackPoint pointing stick NFC (near field communication) mark Trackpad Speaker TrackPoint buttons * for selected models ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...
  • Page 9 Webcam privacy shutter Slide the webcam privacy shutter to cover or uncover the camera lens. It is designed to protect your privacy. Related topics • “Use the TrackPoint pointing device” on page 14 • “Use the trackpad” on page 15 •...

  • Page 10: Side View

    Side view AMD models Description Description Item Item ® USB-C (3.2 Gen 1) power connector Ethernet connector USB-C (3.2 Gen 2) connector HDMI™ connector Always On USB 3.2 Gen 1 connector Audio connector Smart-card slot microSD-card slot Security-lock slot USB-A 3.2 Gen 1 connector * for selected models ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 11: Related Topics

    Intel models Description Description Item Item USB-C (3.2 Gen 1) power connector Ethernet connector USB-C (Thunderbolt™ 4) connector HDMI connector Always On USB 3.2 Gen 1 connector Audio connector Smart-card slot microSD-card slot Security-lock slot USB-A 3.2 Gen 1 connector * for selected models Related topics •...

  • Page 12: Rear View

    Rear view Description Item Nano-SIM-card tray * for selected models Related topics • “Connect to a cellular network (for selected models)” on page 12 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 13: Bottom View

    Bottom view L14 Gen 3 L15 Gen 3 Description Item Emergency-reset hole 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.
  • Page 14 3. Connect your computer to ac power and then turn on your computer. ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 15: Features And Specifications

    Features and specifications For detailed specifications of your computer, go to https://psref.lenovo.com and search by product. Specification Description Double Data Rate 4 (DDR4) Small Outline Dual Inline Memory Module (SODIMM), up Memory to 64 GB Storage device • One slot, 2242 M.2 solid-state drive, up to 1 TB •...
  • Page 16 • USB-C (Thunderbolt 3) connector functionality. To purchase USB-C accessories, go to https:// • USB-C (Thunderbolt 4) connector www.lenovo.com/accessories • USB 4 connector Statement on USB transfer rate Depending on many factors such as the processing capability of the host and peripheral devices, file...

  • Page 17: Chapter 2. Get Started With Your Computer

    • For models with Windows 10: • For models with Windows 11: Connect to the wired Ethernet (for selected models) Connect your computer to a local network through the Ethernet connector on your computer with an Ethernet cable. © Copyright Lenovo 2022, 2023...

  • Page 18: Connect To A Cellular Network (For Selected Models)

    Connect to a cellular network (for selected models) To connect a 4G cellular data network, you must have a wireless wide area network (WWAN) card and a nano-SIM card installed. The nano-SIM card might come with your computer by countries or regions. If no nano-SIM card is shipped, you will need to purchase one from authorized service carriers.

  • Page 19: Interact With Your Computer

    Your computer provides you various ways to navigate the screen. Use the keyboard shortcuts The special keys on the keyboard help you work more effectively. https://support.lenovo.com/us/en/videos/vid500145 Invoke the special function printed as an icon on each key or standard function of F1–F12 function keys.

  • Page 20: Use The Trackpoint Pointing Device

    Open Snipping Tool Toggle keyboard backlight (for selected models) Break operation 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 Use the TrackPoint pointing device The TrackPoint pointing device enables you to perform all the functions of a traditional mouse, such as pointing, clicking, and scrolling.

  • Page 21: Use The Trackpad

    TrackPoint pointing stick Use your finger to apply pressure to the pointing-stick nonslip cap in any direction parallel to the keyboard. The pointer on the screen moves accordingly. The higher the pressure applied, the faster the pointer moves. TrackPoint buttons The left-click button and right-click button correspond to the left and right buttons on a traditional mouse.
  • Page 22 Use the trackpad Description Description Item Item Right-click zone Left-click zone ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 23: Use The Touch Screen (For Selected Models)

    Use the touch gestures Illustration and description Illustration and description Tap once to select or open an item. Tap twice quickly to display a shortcut menu. Two-finger zoom in or zoom out. Scroll through items. Open the task view to see all open windows. Show the desktop.
  • Page 24 Note: Some gestures might not be available when you are using certain apps. Illustration and description Illustration and description Tap once to single click Tap twice quickly to double-click Tap and hold to right-click Slide to scroll through items Zoom out Zoom in ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 25: Connect To An External Display

    Illustration and description Illustration and description Swipe from the left: view all open windows (Windows 10) Swipe from the right: open action center (Windows 10) Swipe from the left: open widget panel (Windows 11) Swipe from the right: open notification center (Windows Drag Swipe downwards shortly: show title bar Swipe downwards: close the current app...
  • Page 26 Supported resolution The following table lists the supported maximum resolution of the external display. Connect the external display to Supported resolution USB-C (3.2 Gen 2 / Thunderbolt 4) connector Up to 5 K / 60 Hz Up to 4 K / 60 Hz HDMI connector Note: The refresh rate higher than 60 Hz can also be supported.

  • Page 27: Chapter 3. Explore Your Computer

    Chapter 3. Explore your computer Lenovo Commercial Vantage The Lenovo Commercial Vantage app (hereafter referred to as Vantage app) is a customized one-stop solution to help you maintain your computer with automated updates and fixes, configure hardware settings, and get personalized support.
  • Page 28 – Privacy Alert: When a shoulder surfer is detected, an alert icon appears on your computer screen. – Privacy Guard: When a shoulder surfer is detected, your screen is blurred. Press Alt+F2 to cancel the blur effect. – Smart Display: Blur screens you are not looking at. If you are not facing any screen, all screens are blurred.
  • Page 29 – Smart Pointer: Relocate the pointer to the screen you are facing. When the pointer moves from one screen to another, it is temporarily drawn large. Note: Snap Window and Smart Pointer only work when your computer is connected to external displays. Ensure that external displays are placed at the same height of your computer.

  • Page 30: Intelligent Cooling

    Intelligent cooling The Intelligent Cooling feature helps you adjust power consumption, fan speed, computer temperature, and performance. For models with Windows 10 Intelligent Cooling feature is adjusted through Windows Power Slider. This feature works in auto mode by default. Press Fn+T to enable or disable the auto mode. Note: Auto mode is for Intel models only.

  • Page 31: Manage Power

    Enable/disable ultra-performance mode (for models with discrete GPU only) To disable or enable ultra-performance mode, go to and download https://pcsupport.lenovo.com corresponding exe files from product page. You can also use the exe files to restore the default settings. Manage power Use the information in this section to achieve the best balance between performance and power efficiency.
  • Page 32 Note: Some models may not ship with ac adapters and power cords. Use only the certified adapters and power cords provided by Lenovo that comply with the requirements of relevant national standards to charge the product. It is recommended to use the Lenovo qualified adapters. You can refer to https:// www.lenovo.com/us/en/compliance/eu-doc...

  • Page 33: Change The Power Settings

    Note: The actual charging speed of your computer depends on many factors, such as the remaining battery power of the computers, the wattage of the ac power adapter, and whether you are using the computers. Change the power settings ® For ENERGY STAR compliant computers, the following power plan takes effect when your computer has been idle for a specified duration:...

  • Page 34: Use A Smart Card Or Microsd Card (For Selected Models)

    Note: Ensure that the NFC card is in NFC Data Exchange Format (NDEF), otherwise the card cannot be detected. Use a smart card or microSD card (for selected models) If your computer has a smart-card slot or microSD card slot, read the following information. Supported smart card Supported smart card specifications: 85.60 mm (3.37 inches) x 53.98 mm (2.13 inches) Attention: Smart cards with slits are not supported.

  • Page 35: Accessories

    Purchase accessories Lenovo has a number of hardware accessories and upgrades to help expand the functionalities of your computer. Options include memory modules, storage devices, network cards, port replicators or docking stations, batteries, power adapters, keyboards, mice, and more.
  • Page 36 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 37: Chapter 4. Secure Your Computer And Information

    Note: The slot supports cable locks that conform to the Kensington MiniSaver lock standards using Cleat™ locking technology. You are responsible for evaluating, selecting, and implementing the locking device and security feature. Lenovo is not responsible for the locking device and security feature. You can purchase the cable locks at https://smartfind.lenovo.com Log in with your fingerprint(for selected models) The fingerprint reader is integrated with the power button.

  • Page 38: Log In With Your Face Id (For Selected Models)

    PLP function enables your computer data to be saved timely. However, there is no guarantee that all data is saved in any situation. To check the type of your M.2 solid-state drive: 1. Restart the computer. When the logo screen is displayed, press F10 to enter the Lenovo diagnostics window.

  • Page 39: Set, Change, And Remove A Password

    The system management password can also protect the system information stored in UEFI BIOS like a supervisor password, but it has lower authority by default. The system management password can be set through the UEFI BIOS menu or through Windows Management Instrumentation (WMI) with the Lenovo client-management interface.

  • Page 40: Associate Your Fingerprints With Passwords (For Selected Models)

    5. In the Changes have been saved window, press Enter. 6. Press F10 to save changes and exit the UEFI BIOS menu. • If you have not set a supervisor password, contact a Lenovo authorized service provider to have the power-on password removed.
  • Page 41 When you start the computer again, you can use your fingerprints to log in to the computer without entering your Windows password, power-on password, or NVMe password. To change settings, press F1 to enter the UEFI BIOS menu, and then select Security ➙ Fingerprint. Attention: If you always use your fingerprint to log in to the computer, you might forget your passwords.
  • Page 42 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 43: Chapter 5. Configure Advanced Settings

    View UEFI BIOS Event logs The UEFI BIOS Event log viewer provides the brief information about UEFI BIOS events. Do the following to view the logs: 1. Restart the computer. When the logo screen is displayed, press F1. © Copyright Lenovo 2022, 2023...

  • Page 44: Detect Memory Retraining (For Intel Models Only)

    2. Select Main ➙ BIOS Event log. Then, press Enter. The UEFI BIOS Event log interface is displayed. 3. Navigate the interface by pressing the following keys, and then check details by selecting each item. • ↑↓: Move keyboard focus •...

  • Page 45: Reset System To Factory Defaults

    • Total Memory Encryption setting change in UEFI BIOS • Memory Reference Code (MRC) change when UEFI BIOS update When memory retraining occurs, the screen might be blank. You might see the LED indicators on Esc, F1, and F4 blinking sequentially to indicate the progress. Do not press the power button to interrupt the process. Wait a few minutes until the logo screen is displayed.

  • Page 46: Fido (Fast Identity Online) Authentication

    • Go to and select the entry for your computer. Then, follow the on-screen https://pcsupport.lenovo.com instructions to download and install the latest UEFI BIOS update package. Note: During the UEFI BIOS update process, MRC change might cause memory retraining. Memory retraining is a process to initialize the memory module and run diagnostic tests for the memory module in your computer.

  • Page 47: Install A Windows Operating System And Drivers

    Windows operating system. Before installing a particular Windows version, check the compatibility list for the Windows version. For details, go to https:// support.lenovo.com/us/en/solutions/windows-support Attention: • It is recommended that you update your operating system through official channels. Any unofficial update might cause security risks.
  • Page 48 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 49: Chapter 6. Cru Replacement

    If you intend on installing a 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. You might be required to return the defective part that is replaced by the CRU.

  • Page 50: Replace A Cru

    1. Go to Control Panel and view by Large icons or Small icons. 2. Click Power Options, and then click Choose what the power buttons do on the left pane. 3. Click Change settings that are currently unavailable at the top. 4.
  • Page 51 Removal procedure For L14 Gen 3 For L15 Gen 3 Chapter 6 CRU replacement...

  • Page 52: Wireless Wan Card (For Selected Models)

    The following information is only for the computer with user-installable modules. Ensure that you use only a Lenovo-authorized wireless module specifically tested for this computer model. Otherwise, the computer will generate an error-code beep sequence when you turn on the computer.
  • Page 53 Attention: Do not touch the contact edge of the wireless WAN card. Otherwise, the wireless WAN card might get damaged. For access, do the following: 1. Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 43. 2.
  • Page 54 Type 2 Installation procedure Type 1 ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 55: Memory Module

    Type 2 Memory module Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Attention: Do not touch the contact edge of the memory module. Otherwise, the memory module might get damaged. For access, do the following: 1.

  • Page 56: 2242 M.2 Solid-State Drive

    Note: Memory module replacement might cause memory retraining. For details, see “Detect memory retraining (for Intel models only)” on page 38. 2242 M.2 solid-state drive Prerequisite Before you start, read and print the following instructions. Generic Safety and Compliance Notices Attention: If you replace a M.2 solid-state drive, you might need to install a new operating system.
  • Page 57 Removal procedure Notes: • A mylar film might cover the M.2 solid-state drive bracket. To access the M.2 solid-state drive, peel off the mylar film first. Do not damage the mylar film and attach it in place after installation. • There might be thermal pads on the top and under the bottom of the M.2 solid-state drive. When replacing the M.2 solid-state drive, peel off the thermal pad on the M.2 solid-state drive and attach it in place after installing the new M.2 solid-state drive.

  • Page 58: Speaker Assembly

    Speaker assembly Prerequisite Before you start, read and print the following instructions. Generic Safety and Compliance Notices For access, do the following: 1. Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 43. 2. Turn off the computer and disconnect the computer from ac power and all connected cables. 3.
  • Page 59 For L14 Gen 3 For L15 Gen 3 2. Turn over the computer and open the display. Push the keyboard in the direction as shown by arrows to release the latches from the keyboard bezel. Chapter 6 CRU replacement...
  • Page 60 3. Pivot the keyboard slightly upward and then turn over the keyboard 4. Put the keyboard on the palm rest as shown and detach the connectors. Then, remove the keyboard. Installation procedure Note: You might be instructed to slide the keyboard frame forward or backward in some of the following steps.
  • Page 61 2. Insert the keyboard into the keyboard bezel as shown. Ensure that the top edge of the keyboard (the edge that is close to the display) is under the keyboard bezel. 3. Slide the keyboard in the direction as shown. Ensure that the latches are secured under the keyboard frame.
  • Page 62 4. Tighten the screws to secure the keyboard. For L14 Gen 3 For L15 Gen 3 5. Connect the ac power adapter and all disconnected cables to the computer. ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide...

  • Page 63: Chapter 7. Help And Support

    3. Wait until you are certain that all the liquid is dry before turning on your computer. How do I enter the UEFI BIOS Restart the computer. When the logo screen is displayed, press F1 to enter the menu? UEFI BIOS menu. © Copyright Lenovo 2022, 2023...
  • Page 64 Where can I get the latest device on page 41 and “Update UEFI BIOS” on page 39. drivers and UEFI BIOS? • Download from Lenovo Support Web site at https://pcsupport.lenovo.com To run LCD Self-Test: 1. Ensure that the computer is connected to the ac power adapter.

  • Page 65: Error Messages

    Error messages If you see a message that is not included in the following table, record the error message first, then shut down the computer and call Lenovo for help. See “Lenovo Customer Support Center” on page 63. Message Solution The computer turned off because the battery power is low.

  • Page 66: Beep Errors

    Beep errors Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology: 1. Go to or scan the following QR Code.

  • Page 67: Self-Help Resources

    How to access? • https://www.lenovo.com/tips Troubleshooting and FAQ • https://forums.lenovo.com Accessibility information https://www.lenovo.com/accessibility • Use Lenovo recovery options. 1. Go to https://support.lenovo.com/ HowToCreateLenovoRecovery 2. Follow the on-screen instructions. • Use Windows recovery options. Reset or restore Windows 1. Go to https://pcsupport.lenovo.com...

  • Page 68: Windows Label

    In some cases, an earlier Windows version might be preinstalled under the terms of the Windows Pro edition license downgrade rights. Call Lenovo If you have tried to correct the problem yourself and still need help, you can call Lenovo Customer Support Center. Before you contact Lenovo Prepare the following before you contact Lenovo: 1.

  • Page 69: Lenovo Customer Support Center

    • Lenovo hardware repair - If the problem is determined to be caused by Lenovo hardware under warranty, trained service personnel are available to provide the applicable level of service.

  • Page 70: Purchase Additional Services

    • Changes, modifications, or upgrades to device drivers • Installation and maintenance of network operating systems (NOS) • Installation and maintenance of programs For the terms and conditions of the Lenovo Limited Warranty that apply to your Lenovo hardware product, go to: •...

  • Page 71: Appendix A. Compliance Information

    India only Further compliance information related to your product is available at https://www.lenovo.com/compliance Locate the UltraConnect wireless antennas Your computer has an UltraConnect™ wireless antenna system. You can enable wireless communication wherever you are. © Copyright Lenovo 2022, 2023...
  • Page 72 The following illustration shows the antenna locations on your computer: Wireless LAN antenna (main) Wireless WAN antenna (main, for selected models) Wireless WAN antenna (auxiliary, for selected models) Wireless LAN antenna (auxiliary) Operating environment Maximum altitude (without pressurization) 3048 m (10 000 ft) Temperature •...
  • Page 73 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 74 Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. This document is copyrighted by Lenovo and is not covered by any open source license, including any ® Linux agreement(s) which may accompany software included with this product.

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