OWNER’S MANUAL
NOTEBOOK
For the safe and convenient use of the product, please read this owner’s manual before use.
14T90Q Series
Copyright © 2022 LG Electronics Inc. All Rights Reserved.
MFL71880430
2
Checking the Components
Checking the Components
Product Tour
The components shown below are provided when you purchase the product.
Check the components before use.
The actual product may differ in shape and color from the product images
included in this owner’s manual.
• Some of its components may look different in shape and color from the pictures in
certain models.
Front
• When cleaning the product, use a cleaning agent dedicated to the PC. If you use
thinner, benzene, alcohol or other similar agent, the product may be damaged or
deformed.
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PC Main Body
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Owner’s Manual
HDMI Adapter
AC Adapter 1
Power Cable 1
Built-in Microphone
IR LED
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Webcam Operation Status Lamp
Webcam
Keyboard
LAN Adapter 2
(Optional)
Touchpad
Stylus Pen
IR Camera
Power Button [
]
1
2
The AC adapter and power cable may differ depending on your country, but there is
no difference in their functionality.
The recommended network cable for the optimal network environment is CAT5 or
higher.
NOTE
• You can use hot keys to use Windows more conveniently.
For details, refer to the LG Easy Guide of the LG PC Manuals.
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Using Stylus Pen
Left
Using Stylus Pen
The buttons on the stylus pen work similar to those of a mouse.
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NOTE
Right
Back
•
•
You need to apply some pressure to use the stylus pen.
Depending on the application used, the button operation of the stylus pen may be
different.
When the stylus pen is idle for more than 10 minutes or the pen tip stays pressed
for more than 4 minutes, the pen goes into a power saving mode in order to
conserve battery.
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•
•
•
To leave the standby mode, simply touch the screen with the Stylus Pen or click
the left or right button on the pen.
For details on the Stylus Pen, refer to the LG Easy Guide of the LG PC Manuals.
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Headphone Port
UFS/microSD Card Slot
Sleep Button
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(4-pole Ear Microphone Port 1
USB-C™ Port 2
)
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USB Port (USB 3.2 Gen 2x1 3
)
(USB 4.0 Gen 3x2 / Thunderbolt™ /
Can connect to a LAN adapter /
HDMI Connectable Port / Power Port)
Vent
Single click
(press once)
Double click
(press twice)
Drag (moving while
pressing down)
Built-in Speakers
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1
The 4-pole ear microphone port supports US type 4-pole standards and the
European 4-pole ear microphone may not work properly.
Using Tablet PC Mode
Unfold the notebook and rotate the LCD as shown in the picture to use it as a
tablet PC.
When using ear microphone (or Bluetooth headset), audio input and output are
directed to the connected device and the microphone and speaker on PC do not work.
The 4-pole ear microphone port does not support external microphone.
2
3
Depending on the specifications of the device connected to the USB-C™ port, it
acts as a USB or Thunderbolt™ port.
The USB-C™ port provides Quick Charging and Always-On Charging functions for
devices that support USB PD (Power Delivery).
The names of USB versions have changed from USB 3.0 (or USB 3.1 Gen 1) and USB
3.1 (or USB 3.1 Gen 2) to USB 3.2 Gen 1x1 and USB 3.2 Gen 2x1. Devices that are
not authorized with USB may not operate normally when connected to the USB port.
The transmission speed of a USB port may differ depending on the type of storage
device (NVMe™, SSD, HDD, etc.) in the system and the connected USB device.
4
Connecting LAN Adapter
Power Connection
• When packing or moving the product, close the LCD panel to
protect it.
CAUTION
!
• Be careful not to pinch your fingers between the PC main
body and the LCD panel.
The AC adapter is used to power and charge the PC.
• Do not use any other AC adapter than the one that was provided when you
purchased this product.
• Do not rotate the LCD panel with excessive force. This may
damage the hinge connecting the PC body and the LCD panel.
• The power cable and AC adapter may differ depending on your country or region.
• In tablet PC mode, the keyboard faces the bottom of the
product. Clean around the product to prevent the keyboard
and PC body from being damaged.
1
2
Connect an end of the cable to the AC adapter and
the other end to a power outlet.
•
The AC adapter can be used from 100 V to 240 V.
NOTE
Connect the AC adapter jack to the PC USB-C™ port.
•
When rotating the product, the screen is rotated vertically or horizontally
according to the current screen angle.
To leave standby mode (LCD off), press the power button or sleep button.
For details on tablet PC mode, refer to the LG Easy Guide of the LG PC Manuals.
•
Ensure that the power jack linked to the AC adapter
and product is connected firmly.
•
•
When the AC adapter is connected, the AC adapter lamp turns on.
Status
White
Power Lamp
Connecting LAN Adapter
When the AC adapter is connected and charging is
complete.
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Connect the LAN adapter to the USB-C™ port
on the PC.
Orange
Off
When the AC adapter is connected and is charging.
The AC adapter is not connected.
•
The USB-C™ port can be used without having
to differentiate between the top and bottom sides.
•
If you try to turn on the system that has entered the Hibernates mode or been
turned off after a low-battery alarm, the system will not be turned on but
the lamp will blink three times. If this is the case, connect the AC adapter and
charge the battery sufficiently before using it.
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3
Connect the network cable (LAN) to the LAN adapter.
Check if you can connect to the Internet properly.
5
System Shutdown / Power Off
Do not use the product on
top of carpet, blanket or bed.
Also, do not put the adapter
under the blanket.
Prevent the battery from
coming in contact with any
metallic object like a car
ignition key or a paper clip.
System Shutdown / Power Off
Press the [
] key or [Ctrl] + [ESC] to display the Start menu.
• The product may
• Otherwise, this may cause
damage to the battery,
a fire or burn due to
- Press the Start button [
] > Power button [
] and select [Shut down].
malfunction, cause a fire
or burn the user due to
temperature rise.
overheat in the battery.
Important Safety Precautions
Do not leave the powered on
product in a space without
enough ventilation (i.e. bags)
repeatedly or for an extended
time.
Charge the battery only with
the provided charger.
• Otherwise, the battery may
be damaged presenting a
risk of fire.
Check the following ‘Important Safety Precautions’ to prevent unexpected
danger or damage in advance.
‘Important Safety Precautions’ is divided into ‘WARNING’ and ‘CAUTION.’
• The battery may overheat
and cause a fire.
WARNING: Noncompliance with the instruction may cause serious
!
Do not excessively bend the AC adapter
cable.
physical damage or fatal injuries.
• Otherwise, the wires inside the cable
may break and cause an electric shock
or fire.
CAUTION: Noncompliance with the instruction may cause minor damage
!
to the body or the machine.
While Using the Product
Guide on Battery Usage
WARNING
!
When the PC is not used for
an extended period of time,
keep the battery level at
about 50 % to increase the
battery lifespan.
Use the Extend Battery Life
function in the LG Smart
Assistant. You can limit
the battery charge to 80 %
of the maximum charging
capacity to increase the
battery lifespan.
Use batteries certified and
acknowledged by
LG Electronics Inc.
• Otherwise, an explosion
or fire may occur.
Keep the battery away from
heat.
• Otherwise, an explosion
or fire may occur.
Avoid storing or using this
product in places with
high humidity levels and
temperatures above 60 °C,
such as the inside of a car or
sauna.
If you find leakage or smell
bad odor from the battery,
contact the local service
center.
• Otherwise, an explosion
or fire may occur.
To increase battery lifespan,
use the battery for a while
before charging it rather
than keeping the battery
completely charged.
If you don't use the product
for a long time with the
battery completely charged,
the battery lifespan may
decrease.
• Otherwise, an explosion
or fire may occur.
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Pre-Tech Support Checklist
Symptom
Cause and Solution
NOTE
• This product has a built-in battery pack. After purchasing your PC, be sure to
charge the battery pack completely before using it for the first time.
The screen color
does not display
properly.
• Check if Reader Mode is on. When the Reader mode
is on, turn the setting off.
- The battery is a wearable good and thus the battery may not last as long as
before after the battery has been used for a long time.
- Press the Start button [
] to turn the [All apps] >
[LG Smart Assistant] > [Display Setting] > [Reader
Mode] settings off.
- The internal battery cannot arbitrarily be removed or replaced. Removing it may
void the warranty.
• Using the Reader mode and the Night mode at
the same time can cause color distortion. Turn the
Reader mode settings off or change the Night mode
to [Off].
- If you need to remove or replace the battery, visit a designated service center.
- We charge a fee for removing or replacing the battery.
Pre-Tech Support Checklist
- Turning off Night light: Press the Start button
[
] and select Settings [
] > [System] >
Troubleshooting
[Display] > [Night light] > [Off].
If the following symptoms appear while using the product, check again.
It may not be a malfunction.
• If the screen still does not properly display, contact
the LG Electronics service center.
- Reader mode controls the brightness and color
of the LCD screen to look like printed paper and
protect the user from eyestrain.
Symptom
Cause and Solution
Some of the
Windows functions
do not work
normally or are not
supported.
• Depending on the product, some of the Windows
functions may not be supported, and you may need
to purchase a separate hardware, driver, or software
to use the functions. Also, you may need to update
the BIOS additionally. The Auto Update function of
Windows is always activated. Updating Windows
may incur Internet usage fees as well as additional
system requirements for the storage device or the
hardware. For more information, refer to the website
The power does
not turn on.
• Check if the power cord is connected.
• After disconnecting the power cord and reconnecting
it, press the power button of the product.
Part of LG Software • The UWP app provided by LG Electronics can be
is not installed.
installed only through the Microsoft Store. Access
Microsoft Store and search for the app to install it.
For more information on the app, refer to
LG Easy Guide of the LG PC Manuals.
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Pre-Tech Support Checklist
Symptom
Cause and Solution
Symptom
Cause and Solution
The wireless
network is not
connected.
• Press [Fn] + [F6] to check if the wireless network
device is turned off.
- Press [Fn] + [F6] to set airplane mode to [OFF].
• Press the power button for approximately 6 seconds
to reset the system. Once the system is reset, press
the power button again to turn on the computer.
- Caution: Unsaved data may be lost. Pressing the
power button while the PC is in use may cause
damage to the hard disk or a system error.
• After resetting the system, run “Setup Defaults” in
the system setup. (For more information on how to
run “Setup Defaults”, refer to “Initializing System
Setup” under “Setup and Upgrade” in the LG Easy
Guide of the LG PC Manuals.)
The system stops
during use or does
not properly turn
off.
Click the Wi-Fi [
] icon on the right side of the
taskbar and check if AP displays properly.
• Every time you press [Fn] + [F6], the wireless network
and airplane mode turns on or off.
• You may not be able to connect to a secure wireless
network. Ask the wireless network administrator.
• Reinstall the wireless LAN driver.
A certain site or
program does not
run.
• Press the Start button [
[All apps] > [Windows Tools] > [Control Panel].
• Select [View by] > [Small icons] > [User Accounts]
> [Change User Account Control settings] > [Never
notify] > [OK].
] and then select
The touchpad is
not functioning
properly.
• Press the Start button [
[LG Smart Assistant]. Then press [Dashboard] >
[Touchpad].
• If the touchpad does not function properly, the
touchpad is either in the Touchpad Off (disabled)
state or Touchpad Auto (disabled when the mouse is
connected) state.
] and run [All apps] >
- LG Electronics and Microsoft recommend using
User Account Control.
I want to reinstall
the driver.
• Press the Start button [
] > [Apps] > [Apps & features].
Then remove the driver to be reinstalled.
] and then select Settings
- For details on the touchpad settings, refer to the
LG Easy Guide of the LG PC Manuals.
[
You selected the
wrong display
language for
Windows.
• Refer to [Recovering the System] in LG Easy Guide
of the LG PC Manuals to initialize the PC and set the
language again.
• All data will be lost during the initialization, so you
must back up all critical data in advance.
• Press the Start button [
], select and run [All apps]
> [LG Update & Recovery]. Then, use the [Required
Updates] or [Update list] menu to reinstall the drivers.
An error message
appears.
• Check if the system is infected with a virus or a
malicious code.
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Appendix
Wireless Specifications
Appendix
Wireless LAN
Frequency Range
Output Power (Max)
Registered Trademark and Open Source Information
(2400 – 2483.5 MHz)
IEEE802.11 b/g/n/ax mode
Microsoft™, MS™, WinPE™, and Windows® are the registered trademarks of
Microsoft Corporation™.
20 dBm EIRP max (100 mW)
USB Type-C™ and USB-C™ are trademarks of USB Implementers forum.
23 dBm EIRP max (200 mW)
The Low band 5.15-5.35 GHz is
for in-door use only.
(5150 – 5725 MHz)
IEEE802.11 a/n/ac/ax mode
Thunderbolt™ and Thunderbolt™ logo are the trademarks of Intel Corporation
in U.S.A. and/or other countries.
Intel®AX211D2W (5745 – 5875 MHz)
IEEE802.11 a/n/ac/ax mode
microSD® and the microSD logo are trademarks or registered trademarks of
SD-3C, LLC.
13.98 dBm EIRP max (25 mW)
23 dBm EIRP max (200 mW)
13 dBm EIRP max (20 mW)
Wi-Fi® is a registered trademark of Wi-Fi Alliance Corporation.
(5925 – 6425 MHz)
Wi-Fi 6E mode
To obtain the source code that is contained in this product, under GPL, LGPL,
MPL, and other open source licenses that have the obligation to disclose
source code, and to access all referred license terms, copyright notices and
LG Electronics will also provide open source code to you on CD-ROM for a
charge covering the cost of performing such distribution (such as the cost of
media, shipping, and handling) upon email request to [email protected].
This offer is valid to anyone in receipt of this information for a period of three
years after our last shipment of this product.
(2400 – 2483.5 MHz)
Bluetooth
MEMO
MEMO
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