T490s and X390 User Guide
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 73
? Safety and Warranty Guide
? Setup Guide
Third Edition (July 2020)
? Copyright Lenovo 2018, 2019, 2020.
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
Use a smart card . . . . . . . . . . . .
Airplane mode . . . . . . . . . . . . . . .
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Chapter 4. Accessories . . . . . . . . 33
Chapter 2. Get started with your
computer . . . . . . . . . . . . . . . . 11
Chapter 5. Secure your computer
and information . . . . . . . . . . . . 39
Get started with Windows 10 . . . .
Windows account . . . . . . .
Windows user interface . . . . .
Windows label . . . . . . . .
Connect to networks . . . . . . . .
Connect to the wired Ethernet . .
Connect to Wi-Fi networks. . . .
Connect to a cellular network. . .
Use Lenovo Vantage . . . . . . . .
Interact with your computer . . . . .
Use privacy protection (for selected
models) . . . . . . . . . . .
Use the Intelligent Cooling feature .
Use the keyboard shortcuts . . .
Use the TrackPoint pointing device
Use the trackpad . . . . . . .
Use the multi-touch screen . . .
Use multimedia . . . . . . . . . .
Use audio . . . . . . . . . .
Use the camera . . . . . . . .
Connect to an external display . .
Lock the computer . . . . . . . . . . . .
Use passwords . . . . . . . . . . . . . .
Password types . . . . . . . . . . . .
Set, change, and remove a password . . .
Use Power Loss Protection function (for selected
models) . . . . . . . . . . . . . . . . .
Use the fingerprint reader (for selected models) .
Use face authentication (for selected models) . .
Use firewalls and antivirus programs. . . . . .
Front . . . . . . . . . . . . .
Base . . . . . . . . . . . . .
Left . . . . . . . . . . . . .
Right . . . . . . . . . . . . .
Rear . . . . . . . . . . . . .
Bottom . . . . . . . . . . . .
Features and specifications . . . .
Statement on USB transfer rate .
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Chapter 3. Explore your computer . . 27
Manage power . . . . . . . . . . . . .
Check the battery status and temperature.
Charge the computer . . . . . . . . .
Maximize the battery life . . . . . . .
Set power button behaviors . . . . . .
Set the power plan . . . . . . . . . .
Transfer data . . . . . . . . . . . . . .
Connect to a Bluetooth-enabled device. .
Set up an NFC connection . . . . . . .
Use a microSD card . . . . . . . . .
? Copyright Lenovo 2018, 2019, 2020
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Purchase options . . . . . . . . .
Docking station . . . . . . . . . .
Front view . . . . . . . . . .
Rear view . . . . . . . . . .
Attach a docking station. . . . .
Detach a docking station . . . .
Connect multiple external displays
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Chapter 6. Configure advanced
settings. . . . . . . . . . . . . . . . . 45
UEFI BIOS . . . . . . . . . . . . . . . .
What is UEFI BIOS . . . . . . . . . . .
Enter the UEFI BIOS menu . . . . . . . .
Navigate in the UEFI BIOS interface . . . .
Change the startup sequence . . . . . .
Set the system date and time. . . . . . .
Update UEFI BIOS . . . . . . . . . . .
Recovery information . . . . . . . . . . .
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . .
Restore your files from a backup . . . . .
Reset your computer . . . . . . . . . .
Use advanced options . . . . . . . . .
Windows automatic recovery. . . . . . .
Create and use a recovery USB device . . .
Install Windows 10 and drivers . . . . . . . .
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Chapter 7. CRU replacement . . . . . 51
What are CRUs . . . . . . . . . . . .
Disable Fast Startup and the built-in battery .
Replace a CRU . . . . . . . . . . . .
Base cover assembly . . . . . . . .
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i
M.2 solid-state drive . . . . . . . . . . .
WWAN card (for selected models) . . . . . .
Keyboard (for ThinkPad X390 only) . . . . .
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Chapter 8. Help and support . . . . . 65
Frequently asked questions . . . . .
Error messages . . . . . . . . . .
Beep errors . . . . . . . . . . .
Self-help resources . . . . . . . .
Call Lenovo . . . . . . . . . . .
Before you contact Lenovo . . .
Lenovo Customer Support Center .
Purchase additional services. . . . .
ii
T490s and X390 User Guide
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65
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Appendix A. Important safety
information . . . . . . . . . . . . . . . 73
Appendix B. Accessibility and
ergonomic information . . . . . . . . 87
Appendix C. Supplemental
information about the Linux operating
system . . . . . . . . . . . . . . . . . 91
Appendix D. Compliance and TCO
Certified information . . . . . . . . . . 93
Appendix E. Notices and
trademarks . . . . . . . . . . . . . . . 107
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 and programs, 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 https://
pcsupport..
? 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.
? Copyright Lenovo 2018, 2019, 2020
iii
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