Lenovo 20NX006KUK User Manual
T490s and X390
User Guide
Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
following:
• Appendix A “Important safety information” on page 71
• Safety and Warranty Guide
• Setup Guide
First Edition (March 2019)
© Copyright Lenovo 2019.
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 documentation . . . . . . . . iii
Chapter 1. Meet your computer. . . . . 1
Front . . . . . . . . . . . . . . . . . . . . 1
Base . . . . . . . . . . . . . . . . . . . . 2
Left . . . . . . . . . . . . . . . . . . . . 4
Right . . . . . . . . . . . . . . . . . . . . 6
Rear . . . . . . . . . . . . . . . . . . . . 7
Bottom . . . . . . . . . . . . . . . . . . . 8
Features and specifications . . . . . . . . . . . 9
Chapter 2. Get started with your
computer . . . . . . . . . . . . . . . . 11
Get started with Windows 10 . . . . . . . . . 11
Windows account . . . . . . . . . . . . 11
Windows user interface . . . . . . . . . . 12
Windows label . . . . . . . . . . . . . 13
Connect to networks. . . . . . . . . . . . . 13
Connect to the wired Ethernet . . . . . . . 13
Connect to Wi-Fi networks. . . . . . . . . 13
Connect to a cellular network. . . . . . . . 14
Use Lenovo Vantage . . . . . . . . . . . . . 14
Interact with your computer . . . . . . . . . . 15
Using the Privacy Guard feature . . . . . . 15
Use the keyboard shortcuts . . . . . . . . 17
Use the TrackPoint pointing device . . . . . 19
Use the trackpad . . . . . . . . . . . . 20
Use the multi-touch screen . . . . . . . . 21
Use multimedia . . . . . . . . . . . . . . . 23
Use audio . . . . . . . . . . . . . . . 23
Use the camera . . . . . . . . . . . . . 23
Connect to an external display . . . . . . . 24
Chapter 3. Explore your computer . . 27
Manage power . . . . . . . . . . . . . . . 27
Check the battery status . . . . . . . . . 27
Charge the computer . . . . . . . . . . . 27
Check the battery temperature . . . . . . . 28
Maximize the battery life . . . . . . . . . 28
Set power button behaviors . . . . . . . . 28
Set the power plan . . . . . . . . . . . . 28
Transfer data . . . . . . . . . . . . . . . . 28
Connect a Bluetooth-enabled device. . . . . 29
Set up a NFC connection . . . . . . . . . 29
Use a microSD card . . . . . . . . . . . 29
Use a smart card . . . . . . . . . . . . 30
Airplane mode . . . . . . . . . . . . . . . 31
Chapter 4. Accessories . . . . . . . . 33
Purchase options . . . . . . . . . . . . . . 33
Docking station . . . . . . . . . . . . . . . 33
Front view . . . . . . . . . . . . . . . 34
Rear view . . . . . . . . . . . . . . . 35
Attach a docking station. . . . . . . . . . 36
Detach a docking station . . . . . . . . . 37
Connect multiple external displays . . . . . 38
Chapter 5. Secure your computer
and information . . . . . . . . . . . . 39
Lock the computer . . . . . . . . . . . . . 39
Use passwords . . . . . . . . . . . . . . . 39
Password types . . . . . . . . . . . . . 39
Set, change, and remove a password . . . . 40
Use Power Loss Protection function (for selected
models) . . . . . . . . . . . . . . . . . . 41
Use the fingerprint reader (for selected models) . . 41
Use face authentication (for selected models) . . . 42
Use firewalls and antivirus programs. . . . . . . 42
Chapter 6. Configure advanced
settings. . . . . . . . . . . . . . . . . 43
UEFI BIOS . . . . . . . . . . . . . . . . . 43
What is UEFI BIOS . . . . . . . . . . . . 43
Enter the UEFI BIOS menu. . . . . . . . . 43
Navigate in the UEFI BIOS interface . . . . . 43
Change the startup sequence . . . . . . . 43
Set the system date and time. . . . . . . . 44
Update UEFI BIOS . . . . . . . . . . . . 44
Recovery information . . . . . . . . . . . . 44
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . . 44
Restore your files from a backup . . . . . . 44
Reset your computer . . . . . . . . . . . 44
Use advanced options . . . . . . . . . . 45
Windows automatic recovery. . . . . . . . 45
Create and use a recovery USB device . . . . 45
Install Windows 10 and drivers . . . . . . . . . 46
Chapter 7. CRU replacement . . . . . 49
What are CRUs . . . . . . . . . . . . . . . 49
Disable Fast Startup and the built-in battery. . . . 49
Replace a CRU . . . . . . . . . . . . . . . 50
Base cover assembly . . . . . . . . . . . 50
M.2 solid-state drive . . . . . . . . . . . 51
WWAN card (for selected models) . . . . . . 54
© Copyright Lenovo 2019 i
Keyboard (for ThinkPad X390 only) . . . . . 56
Chapter 8. Help and support . . . . . 63
Frequently asked questions . . . . . . . . . . 63
Error messages . . . . . . . . . . . . . . . 64
Beep errors . . . . . . . . . . . . . . . . 65
Self-help resources . . . . . . . . . . . . . 66
Call Lenovo . . . . . . . . . . . . . . . . 67
Before you contact Lenovo . . . . . . . . 67
Lenovo Customer Support Center . . . . . . 68
Purchase additional services. . . . . . . . . . 69
Appendix A. Important safety
information . . . . . . . . . . . . . . . 71
Appendix B. Accessibility and ergonomic
information . . . . . . . . . . . . . . . 85
Appendix C. Supplemental
information about the Ubuntu operating
system . . . . . . . . . . . . . . . . . 89
Appendix D. Compliance
information . . . . . . . . . . . . . . . 91
Appendix E. Notices and
trademarks . . . . . . . . . . . . . . . 105
ii T490s and X390 User Guide
About this documentation
• Illustrations in this documentation might look different from your product.
• Depending on the model, some optional accessories, features, and software programs might not be
available on your computer.
• Depending on the version of operating systems, some user interface instructions might not be applicable
to your computer.
• Documentation content is subject to change without notice. Lenovo makes constant improvements on the
documentation of your computer, including this User Guide. To get the latest documentation, go to
support.lenovo.com
• Microsoft
®
makes periodic feature changes to the Windows® operating system through Windows Update.
.
As a result, some information in this documentation might become outdated. Refer to Microsoft resources
for the latest information.
https://
© Copyright Lenovo 2019 iii
iv T490s and X390 User Guide
Chapter 1. Meet your computer
Front
1. Infrared camera*
2. ThinkShutter*
3. Microphones* Capture or record sound and voice.
4. Camera*
5. Multi-touch screen*
Log in to your computer with face authentication. See “Use face authentication
(for selected models)” on page 42.
Slide ThinkShutter to cover or uncover the camera lens. It is designed to protect
your privacy.
Take pictures or record videos by clicking Camera from the Start menu. The
indicator next to the camera is on when the camera is in use.
If you use other apps that support photographing, video chatting, and video
conference, the camera starts automatically when you enable the camerarequired feature from the app.
Enable you to use your computer with simple touch gestures. See “Use the multitouch screen” on page 21.
* for selected models
© Copyright Lenovo 2019 1
Base
ThinkPad T490s
ThinkPad X390
2 T490s and X390 User Guide
Press to turn on the computer or put the computer to sleep mode.
1. Power button
2. Fingerprint reader*
3. Trackpad
4. NFC mark*
5. TrackPoint
®
pointing device
* for selected models
To turn off the computer, open the Start menu, click
Power, and then select
Shut down.
The indicator in the power button shows the system status of your computer.
• Blinking for three times: The computer is initially connected to power.
• On: The computer is on.
• Off: The computer is off or in hibernation mode.
• Blinking rapidly: The computer is entering sleep or hibernation mode.
• Blinking slowly: The computer is in sleep mode.
Log in to your computer with enrolled fingerprints. See “Use the fingerprint reader
(for selected models)” on page 41.
Perform finger touch and all the functions of a traditional mouse. See “Use the
trackpad” on page 20.
Your computer supports NFC (near field communication). You can share
information with another NFC-enabled device. See “Set up a NFC connection” on
page 29.
Perform all the functions of a traditional mouse. See “Use the TrackPoint pointing
device” on page 19.
Chapter 1. Meet your computer 3
Left
1. USB-C™ connector (USB 3.1
Gen 1)
2. Thunderbolt
(USB-C)
™
3 connector
• Charge your computer.
• Charge USB-C compatible devices with the output voltage and current of 5 V
and 1.5 A.
• Transfer data at USB 3.1 speed, up to 5 Gbps.
• Connect to an external display:
– USB-C to VGA: 1900 x 1200 pixels, 60 Hz
– USB-C to DP: 3840 x 2160 pixels, 60 Hz
• Connect to USB-C accessories to help expand your computer functionality. To
purchase USB-C accessories, go to
• Supply power to another computer using P-to-P (Peer to Peer) 2.0 charging
function. See “Use P-to-P 2.0 charging function” on page 27.
Note: When the battery power is below 10%, the connected USB-C accessories
might not work correctly.
• Charge your computer.
• Charge USB-C compatible devices with the output voltage and current of 5 V
and 1.5 A.
• Transfer data at Thunderbolt 3 speed, up to 40 Gbps.
• Connect to an external display:
– USB-C to VGA: 1900 x 1200 pixels, 60 Hz
– USB-C to DP: 3840 x 2160 pixels, 60 Hz
• Connect to USB-C accessories to help expand your computer functionality. To
purchase USB-C accessories, go to
• Supply power to another computer using P-to-P (Peer to Peer) 2.0 charging
function. See “Use P-to-P 2.0 charging function” on page 27.
Note: When the battery power is below 10%, the connected USB-C accessories
might not work correctly.
https://www.lenovo.com/accessories.
https://www.lenovo.com/accessories.
4 T490s and X390 User Guide
3. Ethernet extension connector
Gen 2
Make your computer thinner than the ones with a standard Ethernet connector.
Use a ThinkPad Ethernet Extension Adapter Gen 2 to connect your computer to a
local area network (LAN) through this connector. The ThinkPad Ethernet Extension
Adapter Gen 2 is available as an option and shipped with some computer models
only. You can purchase a ThinkPad Ethernet Extension Adapter Gen 2 from
Lenovo at:
https://www.lenovo.com/accessories.
4. Docking-station connector
Connect the computer to one of the following supported docks to extend the
computer capabilities:
• ThinkPad Basic Docking Station
• ThinkPad Pro Docking Station
• ThinkPad Ultra Docking Station
5. USB 3.1 connector Gen 1 Connect a USB-compatible device, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
6. HDMI™ connector
7. Audio connector
Connect to a compatible digital audio device or video monitor, such as an HDTV.
Connect headphones or a headset with a 3.5-mm (0.14-inch) and 4-pole plug to
listen to the sound from the computer.
Note: The conventional microphone is not supported.
Chapter 1. Meet your computer 5
Right
1. Smart-card slot*
Use smart cards for authentication, data storage, and application processing.
Within large organizations, you might also use smart cards for strong security
authentication of single sign-on (SSO). See “Use a smart card” on page 30.
2. Always On USB 3.1 connector
Gen 1
3. Security-lock slot
* for selected models
With the Always On USB feature enabled, the Always On USB 3.1 connector Gen
1 can charge a USB-compatible device when the computer is on, off, in sleep
mode, or in hibernation mode.
Notes:
• By default, Always On USB is enabled and Charge in Battery Mode is
disabled in UEFI BIOS.
• When the computer is off or in hibernation mode, and Charge in Battery Mode
is disabled in UEFI BIOS, ensure that you have connected the computer to ac
power.
To enable the Always On USB feature, do the following:
1. Enter the UEFI BIOS menu. See “Enter the UEFI BIOS menu” on page 43.
2. Click Config ➙ USB ➙ Always On USB to enable the Always On USB
feature.
Lock your computer to a desk, table, or other fixtures through a compatible
security cable lock. See “Lock the computer” on page 39.
6
T490s and X390 User Guide
Rear
1. System status indicator
The indicator in the ThinkPad logo on the computer lid and the indicator in the
power button show the system status of your computer.
• Blinks for three times: The computer is initially connected to power.
• On: The computer is on (in normal mode).
• Off: The computer is off or in hibernation mode.
• Blinks rapidly: The computer is entering sleep or hibernation mode.
• Blinks slowly: The computer is in sleep mode.
2. Nano-SIM-card and microSDcard slot
Use the microSD card to transfer or store files. See “Use a microSD card” on page
29. Use the Nano Subscriber Identity Module (SIM) card to connect to a wirelessWAN network. See “Connect to a cellular network” on page 14.
Chapter 1. Meet your computer 7
Bottom
ThinkPad T490s
ThinkPad X390
1. Docking-station hook holes Use the docking-station hook holes to secure a supported docking station.
If the computer stops responding and you cannot turn it off by pressing the power
button, reset your computer:
2. Emergency-reset hole
3. Speakers Enable you to experience high-quality sound.
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.
8 T490s and X390 User Guide
Features and specifications
ThinkPad T490s
• Width: 225.8 mm to 226.45 mm (8.89 inches to 8.91 inches)
• Depth: 328.8 mm to 329.15 mm (12.94 inches to 12.95 inches)
• Thickness: 16.95 mm to 18.05 mm (0.67 inches to 0.71 inches)
Dimensions
ThinkPad X390
• Width: 217.2 mm (8.55 inches)
• Depth: 312 mm (12.28 inches)
• Thickness: 17.4 mm to 17.8 mm (0.68 inches to 0.70 inches)
Maximum heat output
(depending on the model)
Power source (ac power
adapter)
Microprocessor
Memory
Storage device
Display
• 45 W (154 Btu/hr)
• 65 W (222 Btu/hr)
• Sine-wave input at 50 Hz to 60 Hz
• Input rating of the ac power adapter: 100 V to 240 V ac, 50 Hz to 60 Hz
To view the microprocessor information of your computer, right-click the Start
button and then click System.
Double data rate 4 (DDR4) synchronous dynamic random-access memory module
(SDRAM), soldered on the system board
• M.2 solid-state drive*
• Hybrid solid-state drive* (with Intel
• Brightness control
• Color display with Thin Film Transistor (TFT) technology
• Color display with In-Plane Switching (IPS) technology (for ThinkPad T490s)
• Color display with In-Plane Switching (IPS) technology or Twisted Nematic (TN)
technology (for ThinkPad X390)
• Display size:
– 355.6 mm (14 inches) (for ThinkPad T490s)
– 337.82 mm (13.3 inches) (for ThinkPad X390)
• Display resolution:
– ThinkPad T490s: 1920 x 1080 pixels or 2560 x 1440 pixels
– ThinkPad X390: 1280 x 720 pixels or 1920 x 1080 pixels
• Multi-touch technology*
• Privacy Guard feature*
®
Optane™ memory)
Keyboard
• Function keys
• Six-row keyboard or six-row keyboard with backlight
• Trackpad
• TrackPoint pointing device
Chapter 1. Meet your computer 9
Connectors and slots
Security features
Wireless features
• Audio connector
• Docking-station connector
• Ethernet extension connector Gen 2
• HDMI connector
• Nano-SIM-card and microSD-card slot
• One Always on USB 3.1 connector Gen 1
• One USB 3.1 connector Gen 1
• One USB-C connector (USB 3.1 Gen 1)
• Smart-card slot*
• Thunderbolt 3 connector (USB-C)
• Face authentication*
• Fingerprint reader*
• Password
• ThinkShutter*
• Security-lock slot
• Trusted Platform Module (TPM)*
• Bluetooth
• Global Positioning System (GPS) satellite receiver (available on models with
wireless WAN)*
• Near field communication (NFC)*
• Wireless LAN
• Wireless WAN*
Others
* for selected models
• Camera*
• Microphones*
10
T490s and X390 User Guide
Chapter 2. Get started with your computer
Get started with Windows 10
Learn the basics of Windows 10 and start working with it right away. For more information about Windows
10, see the Windows help information.
Windows account
To use the Windows operating system, a user account is required. It can either be a Windows user account
or a Microsoft account.
Windows user account
When you start Windows for the first time, you are prompted to create a Windows user account. This first
account you created is of the “Administrator” type. With an Administrator account, you can create additional
user accounts or change account types by doing the following:
1. Open the Start menu and select Settings ➙ Accounts ➙ Other people.
2. Follow the on-screen instructions.
Microsoft account
You can also log in to the Windows operating system with a Microsoft account.
To create a Microsoft account, go to the Microsoft sign-up page at
screen instructions.
With a Microsoft account, you can:
• Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook.
com.
• Sync personalized settings across other Windows-based devices.
https://signup.live.com and follow the on-
© Copyright Lenovo 2019 11
Windows user interface
1. Account
2. Settings
3. Power
4. Start button
5. Windows Search
6. Task View
7. Windows notification area
8. Battery status icon
9. Network icon
10. Action center
Change account settings, lock the computer, or sign out from the current account.
Launch Settings.
Shut down, restart, or put the computer into sleep.
Open the Start menu.
Type what you are looking for in the search box and get search results from your
computer and the Web.
Display all opened apps and switch among them.
Display notifications and status of some features.
Display power status and change battery or power settings. When your computer
is not connected to ac power, the icon changes to
Connect to an available wireless network and display the network status. When
connected to a wired network, the icon changes to
Display the latest notifications from apps and provide quick access to some
features.
Open the Start menu
• Click the Start button.
• Press the Windows logo key on the keyboard.
.
.
Access Control Panel
• Open the Start menu and click Windows System ➙ Control Panel.
• Use Windows Search.
12
T490s and X390 User Guide
Launch an app
• Open the Start menu and select the app you want to launch.
• Use Windows Search.
Windows label
Your computer might have a Windows 10 Genuine Microsoft label affixed to its cover depending on the
following factors:
• Your geographic location
• Edition of Windows 10 that is preinstalled
Go to
https://www.microsoft.com/en-us/howtotell/Hardware.aspx for illustrations of the various types of
Genuine Microsoft labels.
• In the People’s Republic of China, the Genuine Microsoft label is required on all computer models
preinstalled with any version of Windows 10.
• In other countries and regions, the Genuine Microsoft label is required only on computer models licensed
for Windows 10 Pro.
The absence of a Genuine Microsoft label does not indicate that the preinstalled Windows version is not
genuine. For details on how to tell whether your preinstalled Windows product is genuine, refer to the
information provided by Microsoft at
https://www.microsoft.com/en-us/howtotell/default.aspx.
There are no external, visual indicators of the Product ID or Windows version for which the computer is
licensed. Instead, the Product ID is recorded in the computer firmware. Whenever a Windows 10 product is
installed, the installation program checks the computer firmware for a valid, matching Product ID to complete
the activation.
In some cases, an earlier Windows version might be preinstalled under the terms of the Windows 10 Pro
license downgrade rights.
Connect to networks
Your computer helps you connect to the world through a wired or wireless network.
Connect to the wired Ethernet
Connect your computer to a local network through the Ethernet extension connector Gen 2 on your
computer with an Ethernet cable.
To attach an Ethernet cable to your computer, you need a ThinkPad Ethernet Extension Adapter Gen 2. The
ThinkPad Ethernet Extension Adapter Gen 2 is available as an option and shipped with some computer
models. You can purchase a ThinkPad Ethernet Extension Adapter Gen 2 from Lenovo at
www.lenovo.com/accessories
.
https://
Connect to Wi-Fi networks
1. Click the network icon in the Windows notification area. A list of available wireless networks is displayed.
2. Select a network to connect to. Provide required information if needed.
Chapter 2. Get started with your computer 13
Connect to a cellular network
If your computer has a wireless wide area network (WAN) card and a nano-SIM card installed, you can
connect to a cellular data network and get online using the cellular signal.
Note: The cellular service is provided by authorized mobile service carriers in some countries or regions.
You must have a cellular plan from a service carrier to connect to the cellular network.
To establish cellular connection:
1. Insert a straightened paper clip into the hole in the tray
the tray with the metal contacts facing downward
microSD-card slot until you hear a click
3 . If your computer has a nano-SIM card installed, skip this
step.
2. Click the network icon in the Windows notification area, and then select the cellular network icon from
the list.
3. Provide required information if needed.
1 . The tray ejects. Install a nano-SIM card into
2 . Insert the tray into the nano-SIM-card and
Use Lenovo Vantage
The preinstalled Lenovo Vantage is a customized one-stop solution to help you maintain your computer with
automated updates and fixes, configure hardware settings, and get personalized support.
Access Lenovo Vantage
Open the Start menu and click Lenovo Vantage. You also can type Lenovo Vantage in the search box.
To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name.
Key features
Lenovo Vantage makes periodic updates of the features to keep improving your experience with your
computer.
Note: The available features vary depending on the computer model.
• System Update
Download and install firmware and driver updates to keep your computer up-to-date. You can configure
the options to install updates automatically when available.
• Hardware Settings
Configure intelligent settings of the following hardware to make your computer smarter to use:
14
T490s and X390 User Guide
– Always On USB
– Battery
– Camera
– Computer display
– Keyboard
– Microphone
– Speakers
– Trackpad
– TrackPoint
• Health & Support
Monitor your computer health and get personalized support of your computer. You can:
– Scan the computer hardware and diagnose hardware problems.
– Look up computer warranty status (online).
– Access User Guide.
– Read tips and tricks articles customized for your computer.
• Lenovo Wi-Fi Security
Protect your computer from malicious Wi-Fi networks.
Interact with your computer
Your computer provides you various ways to navigate the screen.
Using the Privacy Guard feature
Depending on the model, your computer might support the Privacy Guard feature.
The Privacy Guard feature prevents others from peeking at your screen to protect your privacy whenever
needed. When the feature is enabled, it darkens the screen and narrows the viewing angle, making the
screen content easily visible only to the people in front of the computer.
By default, the Privacy Guard feature is disabled. To enable or disable this feature, do one of the following:
• Press Fn+D.
• Press F12 (when the Fn Lock indicator is off) or Fn+F12 (when the Fn Lock indicator is on).
• Open the Start menu and then click Lenovo Vantage ➙ Hardware Settings ➙ Audio/Visual. Locate the
Privacy Guard section to turn on or turn off the switch.
Note: You will be prompted by the on-screen display every time the feature is enabled or disabled.
Automatic Privacy Guard feature for passwords
Note: The automatic Privacy Guard feature for passwords is not supported on computers with the Ubuntu
operating system.
When the Privacy Guard feature is disabled, you can select the automatic Privacy Guard feature for
passwords by doing the following:
1. Open the Start menu and then click Lenovo Vantage ➙ Hardware Settings ➙ Audio/Visual.
2. Locate the Privacy Guard section, and then select Enable this feature when typing passwords.
Chapter 2. Get started with your computer 15
Note: The check box is not selectable when the Privacy Guard feature is enabled.
If the automatic Privacy Guard feature for passwords is selected and a password input field is detected on
the screen, the feature will turn on automatically to protect your password from being peeked at by others.
When no password input field is detected on the screen, the feature will turn off automatically.
Tips on using the Privacy Guard feature
• To increase privacy level, press
until the desired level is achieved. This is useful in darker
environments.
• To decrease privacy level, press
until the desired level is achieved. This is useful in brighter
environments.
• Your computer will remember the last used privacy level.
16
T490s and X390 User Guide
Use the keyboard shortcuts
The special keys on the keyboard help you work more easily and effectively.
ThinkPad T490s
ThinkPad X390
1. Windows logo key
2. Caps Lock key
3. F1–F12 function keys
Open the Start menu.
For information about using this key with other keys, see the Windows help
information.
Switch the letter case between the upper case and lower case.
When the key indicator is on, you can type uppercase letters.
Invoke the special function printed as an icon on each key or standard function.
To choose whether to invoke the special function or standard function:
1. Go to Control Panel and view by Large icons or Small icons.
2. Click Keyboard or Lenovo - Keyboard Manager and select the option of
your preference.
Chapter 2. Get started with your computer 17
Switch the function of the F1–F12 keys between the standard function and special
function printed as an icon on each key.
When the Fn Lock indicator is on:
• Press F1-F12 to use the standard function.
• Press Fn+F1-F12 to use the special function.
When the Fn Lock indicator is off:
• Press Fn+F1-F12 to use the standard function.
• Press F1-F12 to use the special function.
Mute or unmute the speakers.
When the key indicator is on, the speakers are muted.
If you mute the speakers and turn off your computer, the speakers remain muted
when you turn on your computer.
Decrease the speaker volume.
Increase the speaker volume.
Mute or unmute the microphones.
When the key indicator is on, the microphones are muted.
Darken the computer display.
Brighten the computer display.
Manage external displays.
Enable or disable the built-in wireless features.
Open the Settings window.
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.
On this setting page, you can also define different functions for the key
combinations with F12, such as Shift+F12, Alt+F12, or Ctrl+F12.
Open the Snipping Tool program.
Fn+Spacebar
Fn+B
18 T490s and X390 User Guide
Switch between different keyboard backlight statuses if your computer supports
keyboard backlight.
Equal the Break key on a conventional external keyboard.
Fn+K
Equal the ScrLK or Scroll Lock key on a conventional external keyboard.
Fn+P
Fn+S
Fn+4
Fn+Left arrow key Equal the Home key.
Fn+Right arrow key Equal the End key.
Equal the Pause key on a conventional external keyboard.
Equal the SysRq key on a conventional external keyboard.
Put the computer to sleep mode. To wake up the computer, press Fn or the power
button.
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.
Use the TrackPoint pointing device
1. Pointing stick
Use your index finger or middle finger to apply pressure to the pointing-stick nonslip cap in any direction
parallel to the keyboard. The pointer on the screen moves accordingly but the pointing stick itself does not
move. The higher the pressure applied, the faster the pointer moves.
2. Left-click button
Press to select or open an item.
3. Right-click button
Press to display a shortcut menu.
4. Scroll bar
Press and hold the dotted scroll bar while applying pressure to the pointing stick in the vertical or horizontal
direction. Then, you can scroll through the document, Web site, or apps.
Chapter 2. Get started with your computer 19
Disable the TrackPoint pointing device
The TrackPoint pointing device is active by default. To disable the device:
1. Go to Control Panel and view by Large icons or Small icons.
2. Click Mouse. Then, follow the on-screen instructions to complete the setting.
Replace the pointing-stick nonslip cap
Note: Ensure that the new cap has grooves
a .
Use the trackpad
The entire trackpad surface is sensitive to finger touch and movement. You can use the trackpad to perform
all the pointing, clicking, and scrolling functions of a traditional mouse.
Use the trackpad
1. Left-click zone
Press to select or open an item.
You also can tap anywhere on the surface of the trackpad with one finger to perform the left-click action.
2. Right-click zone
Press to display a shortcut menu.
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T490s and X390 User Guide
You also can tap anywhere on the surface of the trackpad with two fingers to perform the right-click action.
Use the touch gestures
Tap
Tap anywhere on the trackpad
with one finger to select or open
an item.
Two-finger scroll
Put two fingers on the trackpad
and move them in the vertical or
horizontal direction. This action
enables you to scroll through the
document, Web site, or apps.
Two-finger zoom in
Put two fingers on the trackpad
and move them farther apart to
zoom in.
Swipe three fingers down
Two-finger tap
Tap anywhere on the trackpad
with two fingers to display a
shortcut menu.
Two-finger zoom out
Put two fingers on the trackpad
and move them closer together to
zoom out.
Swipe three fingers up
Put three fingers on the trackpad
and move them up to open the
task view to see all your open
windows.
Put three fingers on the trackpad
and move them down to show
the desktop.
Notes:
• When using two or more fingers, ensure that you position your fingers slightly apart.
• Some gestures are not available if the last action was done from the TrackPoint pointing device.
• Some gestures are only available when you are using certain apps.
• If the trackpad surface is stained with oil, turn off the computer first. Then, gently wipe the trackpad
surface with a soft and lint-free cloth moistened with lukewarm water or computer cleaner.
For more gestures, see the help information of the pointing device.
Disable the trackpad
The trackpad is active by default. To disable the device:
1. Go to Control Panel and view by Large icons or Small icons.
2. Click Mouse. Then, follow the on-screen instructions to complete the setting.
Use the multi-touch screen
If your computer display supports the multi-touch function, you can navigate the screen with simple touch
gestures.
Note: Some gestures might not be available depending on the app you use.
Chapter 2. Get started with your computer 21
Tap once
Tap twice quickly
• From the Start menu:
Open an app or item.
• From the desktop:
Select an app or item.
• In an open app: Perform
an action such as Copy,
Save, and Delete,
depending on the app.
Tap and hold
Open a shortcut menu.
Drag an item to the
location you want
Move an object.
Open an app or item from
the desktop.
Slide
Scroll through items, such
as lists, pages, and photos.
Move two fingers closer
together
Zoom out.
Move two fingers farther
apart
Zoom in.
Swipe in from the left
edge
View all your open windows
in task view.
Swipe in from the right
edge
Open the action center to
see your notifications and
quick actions.
• Swipe downwards
shortly from the top
edge (for full-screened
app or when your
computer is in the
tablet mode)
Show a hidden title bar.
• Swipe in from the top
edge to the bottom
edge (when your
computer is in the
tablet mode)
Close the current app.
Tips
• Turn off the computer before cleaning the multi-touch screen.
• Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the
multi-touch screen. Do not apply solvents to the cloth.
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T490s and X390 User Guide
• The multi-touch screen is a glass panel covered with a plastic film. Do not apply pressure or place any
metallic object on the screen, which might damage the touch panel or cause it to malfunction.
• Do not use fingernails, gloved fingers, or inanimate objects for input on the screen.
• Regularly calibrate the accuracy of the finger input to avoid a discrepancy.
Use multimedia
Use your computer for business or entertainment with the built-in components (camera, speakers, and audio
features) or connected external devices (an external projector, monitor, and HDTV).
Use audio
To enhance your listening experience, connect speakers, headphones, or a headset with a 3.5-mm (0.14inch), 4-pole plug to the audio connector.
Adjust the speaker volume
Press
Change the sound settings
1. Go to Control Panel and view by category.
2. Click Hardware and Sound ➙ Sound.
3. Change the settings as you prefer.
Protect your hearing
Smart audio helps protect against hearing loss. The feature limits the computer’s maximum volume to 130
mV when a headset or headphone is connected. To change the setting:
1. Go to Control Panel and view by large icons.
2. Click SmartAudio. In the window displayed, click the Disable Headphone Limiter icon. Then, follow
the on-screen instructions.
to increase the speaker volume or press to decrease the speaker volume.
Use the camera
You can use the built-in camera to take photos or record videos. The indicator next to the camera turns on
when the camera is in use.
To take photos or record a video:
1. Slide the ThinkShutter to the right to unveil the camera.
2. Open the Start menu and click Camera.
3. To take a photo, click the camera icon. If you want to record video, click the video icon to switch to
video mode.
If you use other programs that provide features such as photographing, video capturing, and video
conference, the camera starts automatically when you enable the camera-required feature.
To configure the camera settings:
1. Open the Start menu and click Lenovo Vantage ➙ Hardware Settings ➙ Audio/Visual.
2. Locate the Camera section and then follow the on-screen instructions.
Chapter 2. Get started with your computer 23
Connect to an external display
Connect your computer to a projector or a monitor to give presentations or expand your workspace.
Connect to a wired display
1. Connect the external display to an appropriate video connector on your computer, such as the HDMI
connector, USB-C connector (USB 3.1 Gen 1), or Thunderbolt 3 connector (USB-C).
2. Connect the external display to an electrical outlet.
3. Turn on the external display.
If your computer cannot detect the external display, right-click a blank area on the desktop, and then click
Display settings ➙ Detect.
Do not connect external displays to the USB-C connector (USB 3.1 Gen 1)
1 and the HDMI connector 2 at
the same time. Otherwise, only the external display connected to the USB-C connector (USB 3.1 Gen 1)
will work by default. To change the priority between the USB-C connector (USB 3.1 Gen 1) and the HDMI
connector, you can change the priority between the USB-C connector (USB 3.1 Gen 1) and the HDMI
connector from the UEFI BIOS menu. To enter the UEFI BIOS menu, see “Enter the UEFI BIOS menu” on
page 43, and then select Display ➙ Shared Display Priority. Then, follow the instructions on the screen.
Supported resolution
The following table lists the supported maximum resolution of the external display.
Connect the external display to Supported resolution
the USB-C connector (USB 3.1 Gen 1) Up to: 4096 x 2304 pixels / 60 Hz
the Thunderbolt 3 connector (USB-C) Up to: 4096 x 2304 pixels / 60 Hz
1
the HDMI connector
Up to: 4096 x 2160 pixels / 30 Hz
Connect to a wireless display
To use a wireless display, ensure that both your computer and the external display support the Miracast
feature.
• Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add
Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the
instructions on the screen.
• Click the action center icon
in the Windows notification area and click Connect. Select the wireless
display and follow the on-screen instructions.
Set the display mode
Press
24
or and then select a display mode of your preference.
T490s and X390 User Guide
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