LG 14T90R Series Notebook Owner’s Manual

LG 14T90R Series Notebook

Product Information

This is the owner’s manual for the LG Notebook 14T90R Series.

• Model Number: 14T90R
• Product Code: MFL71989530
• Manufacturer: LG
• Website: www.lg.com

Precautions before Product Use
Before using the product, please take note of the following precautions:

• Make sure to read the owner’s manual before using the product.
• Back up all critical user data to an external storage device to prevent loss of data in case of a malfunction in the built-in solid state drive (SSD).
• Do not shut down the system before it is completely loaded to ensure proper shutdown.
• The screen and menu configurations may differ from the manual depending on the status of Windows and software updates.

Checking the Components
Before using the product, check if the following components are included:

• PC Main Body
• Owner’s Manual
• AC Adapter (1)
• Power Cable (1)
• HDMI Adapter
• LAN Adapter (2) (Optional)
• Stylus Pen

Product Tour
Here are some key features of the product:

• Built-in Microphone
• Webcam Operation Status Lamp
• Webcam
• IR Camera
• IR LED
• Keyboard
• Touchpad
• Power Button
• Headphone Port (4-pole Ear Microphone Port)
• USB-CTM Port (USB 4.0 Gen 3×2 / ThunderboltTM / Can connect to a LAN adapter / HDMI Connectable Port / Power Port)
• Built-in Speakers
• microSD Card Slot
• Sleep Button
• USB Port (USB 3.2 Gen 2×1)
• Vent

Product Usage Instructions

Using Stylus Pen
To use the stylus pen:

1. Hold the stylus pen in your hand.
2. Touch the tip of the stylus pen on the screen to interact with the device.

Using Tablet PC Mode
To use the product in tablet PC mode:

1. Detach the keyboard from the PC main body.
2. Use the touch screen to navigate and interact with the device.

Connecting LAN Adapter
To connect the LAN adapter:

1. Plug the LAN adapter into the USB-CTM port on the PC main body.
2. Connect the network cable to the LAN adapter for optimal network connectivity.

Power Connection
To connect the power:

1. Plug the AC adapter into a power outlet.
2. Connect the power cable to the AC adapter and the PC main body.

System Shutdown / Power Off
To shut down or power off the system:

1. Ensure that all tasks are saved and closed.
2. Click on the Start menu and select “Shutdown” or “Power Off”.
3. Wait for the system to completely shut down before disconnecting the power.

Important Safety Precautions
For your safety, please take note of the following precautions:

• Do not use thinner, benzene, alcohol, or similar agents on the product as they may cause damage or deformation.
• Refer to the Pre-Tech Support Checklist in case of any issues with the product.

Appendix
For additional information, refer to the appendix section of the owner’s manual.
Registered Trademark and Open Source Information: Please refer to page 8 of the owner’s manual for details.

For the safe and convenient use of the product, please read this owner’s manual before use.

Precautions before Product Use
For the convenience of users, LG PC Manuals are provided in an electronic format. For more information on how to use the product, refer to the LG Easy Guide of the LG PC Manuals.
The images in the owner’s manual may differ depending on the language selected and are subject to change without prior notice.
Any malfunction in the built-in solid state drive (SSD) may result in loss of stored data. You must back up all critical user data to an external storage device (USB HDD, memory card, etc.).
If you shut the system down before it is completely loaded, the product may not shut down properly. Shut down the system after it is completely loaded. (It takes about one or two minutes to completely load the system and may vary depending on the conditions.)
The screen and menu configurations may differ from this manual depending on the status of the Windows and software updates. Also, the version of Windows may differ depending on the model.

Checking the Components

The components shown below are provided when you purchase the product. Check the components before use.

• Some of its components may look different in shape and color from the pictures in certain models.
• 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.

1. The AC adapter and power cable may differ depending on your country, but there is no difference in their functionality.
2. The recommended network cable for the optimal network environment is CAT5 or higher.

Product Tour

The actual product may differ in shape and color from the product images included in this owner’s manual.

Front

1. Built-in Microphone
2. Webcam Operation Status Lamp
3. Webcam
4. IR Camera
5. IR LED
6. Keyboard
7. Touchpad
8. Power Button [ ]

NOTE
You can use hot keys to use Windows more conveniently. For details, refer to the LG Easy Guide of the LG PC Manuals.

1. Headphone Port  (4-pole Ear Microphone Port 1 )

2. USB-C™ Port 2 (USB 4.0 Gen 3×2 / Thunderbolt™ / Can connect to a LAN adapter / HDMI Connectable Port / Power Port)

3. Built-in Speakers

4. The 4-pole ear microphone port supports US type 4-pole standards and the European 4-pole ear microphone may not work properly.
   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.

5. 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).

6. The name of the USB version has been changed from USB 3.1 (or USB 3.1 Gen 2) to USB 3.2 Gen 2×1. 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.

7. microSD Card Slot

8. Sleep Button

9. USB Port (USB 3.2 Gen 2×1 3 )  Vent

Using Stylus Pen
The buttons on the stylus pen work similar to those of a mouse.

WARNING
If the battery is replaced to the incorrect type, there is a danger of fire or explosion.

CAUTION

• If you use a non-standard battery or a rechargeable battery, the pen may not work.
• Keep the battery removed if you are not using the pen for a long time. Otherwise, the battery may leak, causing the product to fail.
• Do not use excessive force to insert the battery or to remove or fit the pen cap. Doing so may damage the product.
• Storing or carrying the pen with the tip pressed consumes the battery.
• Be careful not to cause an excessive impact on the product or drop it. The product may fail.

NOTE

• When purchasing the product, the 1.5 V AAAA battery is provided inserted in the product. Detach the Pen Cap and remove the battery anti-discharge insulator before use.

• Do not apply excessive force on the Stylus Pen. Doing so may cause the pen tip or the pen to fail.

• The Stylus Pen buttons may serve different functions in different programs.

• The Stylus Pen automatically enters the sleep mode to reduce battery consumption if the pen is not used for more than 10 minutes or if the pen tip remains pressed for more than 4 minutes.

• To exit the sleep mode, simply touch the screen with the Stylus Pen’s tip or click the left or right button on the pen.

• If the battery power is low, the pen operation may be interrupted, or the pen may not be recognized.

• If you have not replaced the battery for a long time, replace the battery.

• AAAA batteries are available from online shopping malls.

• For details on the Stylus Pen, refer to the LG Easy Guide of the LG PC Manuals.

Using Tablet PC Mode
Unfold the notebook and rotate the LCD as shown in the picture to use it as a tablet PC.

CAUTION

• When packing or moving the product, close the LCD panel to protect it.
• Be careful not to pinch your fingers between the PC main body and the LCD panel.
• Do not rotate the LCD panel with excessive force. This may damage the hinge connecting the PC body and the LCD panel.
• 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.

NOTE

• 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.

Connecting LAN Adapter

1. Connect the LAN adapter to the USB-C™ port  on the PC.
2. The USB-C™ port can be used without having to differentiate between the top and bottom sides.
3. Connect the network cable (LAN) to the LAN adapter.
4. Check if you can connect to the Internet properly.

Power Connection

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.
• The power cable and AC adapter may differ depending on your country or region.

1. 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.

2. Connect the AC adapter jack to the PC USB-C™ port.
   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.

• 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.

System Shutdown / Power Off
Press the [ ] key or [Ctrl] + [ESC] to display the Start menu.

• – Press the Start button [ ] > Power button [ ] and select [Shut down].

Important Safety Precautions
Check the following ‘Important Safety Precautions’ to prevent unexpected danger or damage in advance.
‘Important Safety Precautions’ is divided into ‘WARNING’ and ‘CAUTION.’

• WARNING: Noncompliance with the instruction may cause serious physical damage or fatal injuries.
• CAUTION: Noncompliance with the instruction may cause minor damage to the body or the machine.

While Using the Product
WARNING

__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.
Otherwise, an explosion or fire may occur.| If you find leakage or smell bad odor from the battery, contact the local service center.
Otherwise, an explosion or fire may occur.
Do not use the product on top of carpet, blanket or bed. Also, do not put the adapter under the blanket.
The product may malfunction, cause a fire or burn the user due to temperature rise.| Prevent the battery from coming in contact with any metallic object like a car ignition key or a paper clip.
Otherwise, this may cause damage to the battery, a fire or burn due to overheat in the battery.
Do not leave the powered on product in a space without enough ventilation (i.e. bags) repeatedly or for an extended time.
The battery may overheat and cause a fire.| Charge the battery only with the provided charger.
Otherwise, the battery may be damaged presenting a risk of fire.
---|---
Do not bend the power cable connected to the AC adapter too much.
Otherwise, the wires inside the cable may break and cause an electric shock or fire.

Guide on Battery Usage

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.
---|---
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.

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 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.
  • The internal battery cannot arbitrarily be removed or replaced. Removing it may void the warranty.
  • 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
Troubleshooting
If the following symptoms appear while using the product, check again. It may not be a malfunction.

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 https://www.microsoft.com.| |
Part of LG Software is not installed.| The UWP app provided by LG Electronics can be 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.| |
| The screen color does not display properly.| Check if Reader Mode is on. When the Reader mode is on, turn the setting off.
Press the Start button [  ] to turn the [All apps] > [LG Smart Assistant] > [Display Setting] > [Reader Mode] settings off.
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].
Turning off Night light: Press the Start button [  ] and select Settings [  ]

[System] > [Display] > [Night light] > [Off].
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.| | The system stops during use or does not properly turn 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 theLG Easy Guide of the LG PC Manuals.)| |
| The touchpad is not functioning properly.| Press the Start button [ ] and run [All apps] > [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.- For details on the touchpad settings, refer to the LG Easy Guide of the LG PC Manuals.| |
| 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.| |
| 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.

| |
| | 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]. 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 [  ] and then select [All apps] > [Windows Tools] > [Control Panel].
• Select [View by] > [Small icons] > [User Accounts] > [Change User Account Control settings] > [Never notify] > [OK]. – LG Electronics and Microsoft recommend using User Account Control.

I want to reinstall the driver.|

• Press the Start button [   ] and then select Settings [       ] > [Apps] > [Installed apps]. Then remove the driver to be reinstalled.
• Press the Start button [  ], select and run [All apps] > [LG Update & Recovery (or LG Update)].
• Then, use the [Required Updates] or [Update list] menu to reinstall the drivers.
  • For some models without the Recovery function, only the LG Update function is provided.

An error message appears.| Check if the system is infected with a virus or a malicious code.

Appendix

Registered Trademark and Open Source Information
Microsoft™, MS™, WinPE™, and Windows® are the registered trademarks of Microsoft Corporation™.
USB Type-C™ and USB-C™ are trademarks of USB Implementers forum.
Intel® and Intel® logo, Intel® Core™, Thunderbolt™ and Thunderbolt™ logo, Intel® Unison™ and Intel® Unison™ logo are trademarks or registered trademarks of Intel and/or subsidiaries in the United States and/or other countries.
microSD® and the microSD logo are trademarks or registered trademarks of SD- 3C, LLC.
Wi-Fi® is a registered trademark of Wi-Fi Alliance Corporation.
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 other relevant documents please visit https://opensource.lge.com.
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 opensource@lge.com. This offer is valid to anyone in receipt of this information for a period of three years after our last shipment of this product.

Wireless Specifications

ENGLISH| Wireless LAN| Frequency Range| Output Power (Max)
---|---|---|---
Intel®AX211D2W| (2400 – 2483.5 MHz)

IEEE802.11 b/g/n/ax mode

| ****

20 dBm EIRP max (100 mW)

(5150 – 5725 MHz)
IEEE802.11 a/n/ac/ax mode| 23 dBm EIRP max (200 mW) The Low band 5.15-5.35 GHz is for in-door use only.
(5745 – 5875 MHz)
IEEE802.11 a/n/ac/ax mode| ****

13.98 dBm EIRP max (25 mW)

(5925 – 6425 MHz)
Wi-Fi 6E mode| ****

23 dBm EIRP max (200 mW)

(2400 – 2483.5 MHz) Bluetooth| ****

13 dBm EIRP max (20 mW)

Stylus Pen Product Specifications

References

• LG Open Source
• Microsoft Corporation

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>