LG 14Z90Q Gram 14 Inch Ultra Lightweight Notebook Owner’s Manual
Precautions before Product Use
Precautions before Product Use
For the convenience of users, LG PC Manuals are provided in an electronic format.
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.)
For more information on how to use the product, refer to the LG Easy Guide of the LG PC Manuals.
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 the actual components may differ in shape and colour from the pictures depending on the model.
- When cleaning the product, use a cleaning agent dedicated to the PC. If you use thinner, benzene, alcohol or other similar agents, the product may be damaged or deformed.


- 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.
Product Tour
The actual product may differ in shape and color from the product images
included in this owner’s manual.
Front
- IR LED
- Webcam
- Webcam Operation Status Lamp
- Built-in Microphone
- Keyboard
- Touchpad
- 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.
Connecting LAN Adapter
Left

Right

- HDMI Port
- USB-C™ Port1 (USB 4.0 Gen 3×2 / Thunderbolt™ / Can connect to a LAN adapter / Power Port)
- Headphone Port (4-pole Earset Port 2 )
- Built-in Speakers
- microSD Card Slot
- USB Port (USB 3.2 Gen 2×13 )
- Security Keyhole (Kensington Security Slot).
- 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 4-pole ear microphone port supports US type 4-pole standards and the European 4-pole ear microphone may not work properly. When using a headset with microphone (or Bluetooth headset), audio input and output are directed to the connected device and the microphone and speaker on the PC will not work. The 4-pole ear/microphone port does not support an external standalone microphone.
- 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 1×1 and USB 3.2 Gen 2×1. Devices that are not authorized or certified for USB connection 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 in the system (NVMe™, SSD, HDD, etc.) and the connected USB device.
Connecting LAN Adapter
- Connect the LAN adapter to the USB-C™ port on the PC.
- The USB-C™ port can be used without having to differentiate between the top and bottom surfaces.
- Connect the network cable (LAN) to the LAN adapter.
- Check if you can connect to the internet properly

Connecting to AC (Mains) Power
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.
- Connect one 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.
- 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.

- 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 | Power Lamp |
| On | When the AC adapter is connected and charging is complete. |
| Blinking | When the AC adapter is connected and is charging. |
| Off | The AC adapter is not connected. |
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
Good![]() | Use batteries certified and acknowledged by LG Electronics Inc.
| ![]() | Keep the battery away from heat.
|
![]() | 60 °C or more or highhumidity spaces, for example, inside cars or in kitchens, should be avoided when you use or store it.
| ![]() | If you find leakage or smell a bad odor from the battery, contact your local authorised service centre.
|
![]() | Do not use the product on top of a carpet, bed or other soft furnishings; also, do not cover the adapter under the blanket.
| ![]() | Prevent the battery from being in contact with any metallic object like a car ignition key or a paper clip.
|
![]() | Do not leave the product powered-on in a space without sufficient ventilation (i.e. bags or carry cases).
| ![]() | Charge the battery only with the provided instrument.
|
![]() | Do not bend the cable for the AC adapter too much.
| ||
Pre-Tech Support Checklist
Guide on Battery Usage
![]() | When the PC is not used for an extended period of time, keep the battery level at 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.
- Batteries are consumable items that gradually lose battery life when they are used for long periods.
- The internal battery cannot arbitrarily be removed or replaced. Removing it may void the warranty.
- If you need to remove or replace the battery, please 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 separate hardware, drivers or software to use these functions. In addition, you may need to also update the BIOS. 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.https://www.microsoft.com. |
| Part of LG Software is not installed. | The UWP app provided by LG Electronics can only be installed through the Microsoft Store. Access the 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. |
Pre-Tech Support Checklist
| Symptom | Cause and Solution |
| The screen colour does not display properly |
|
| The power does not turn on. |
|
Appendix
| Symptom | Cause and Solution |
| The system stops during use or does not properly turn off | Remove the adapter and hold the power button down for approximately 6 seconds to reset the system. Once the system has 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. |
| The touchpad is not functioning properly |
|
| You selected the wrong display language for Windows. |
|
Appendix
| Symptom | Cause and Solution |
| The wireless network is not connected. |
|
| A certain site or program does not run. |
|
| I want to reinstall the driver. |
|
| An error message appears |
|
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.
Thunderbolt™ and Thunderbolt™ logo are the trademarks of Intel Corporation in U.S.A. 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 [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.
Wireless function S/W : Version 22 or Version 23
Wireless LAN Specifications
| Frequency Range | Output Power (Max) |
| (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 indoor 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) |
| Wi-Fi 6E mode 23 dBm EIRP max (200 mW) (2400 – 2483.5 MHz) Bluetooth | 13 dBm EIRP max (20 mW) |
Regulatory Notices

Hereby, LG Electronics declares that the radio equipment type PC is in compliance with the relevant statutory requirements. The full text of the UK declaration of conformity is available at the following internet address:
http://www.lg.com/global/support/cedoc/cedoc#
The use of the 5150-5350 MHz and 5945-6425 MHz band (if applicable) is restricted to indoor use only. This restriction exists in the United Kingdom (UK).
Hereby, LG Electronics declares that the radio equipment type PC is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:
http://www.lg.com/global/support/cedoc/cedoc#
The use of the 5150-5350 MHz and 5945-6425 MHz band (if applicable) is restricted to indoor use only.
This restriction exists in Belgium (BE), Bulgaria (BG), Czech Republic (CZ), Denmark (DK), Germany (DE), Estonia (EE), Ireland (IE), Greece (EL), Spain (ES), France (FR), Croatia (HR), Italy (IT), Cyprus (CY), Latvia (LV), Lithuania (LT), Luxembourg (LU), Hungary (HU), Malta (MT), Netherlands (NL), Austria (AT), Poland (PL), Portugal (PT), Romania (RO), Slovenia (SI), Slovakia (SK), Finland (FI), Sweden (SE), Northern Ireland (UK(NI)), Switzerland (CH), Iceland (IS), Liechtenstein (LI) and Norway (NO)
MEMO


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