LG 14Z90Q-K.AAB7U1
LG gram 14Z90Q Ultra Lightweight Laptop User Manual
Model: 14Z90Q-K.AAB7U1
Introduction
This manual provides comprehensive instructions for the LG gram 14Z90Q Ultra Lightweight Laptop. It covers setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device. The LG gram 14Z90Q is designed for portability and high performance, featuring a 14-inch WUXGA IPS display, Intel Evo 12th Gen i7 1260P Processor, 16GB LPDDR5 RAM, and a 512GB NVMe SSD.
Product Overview
Key Features
- 14" WUXGA IPS Display: Features a DCI-P3 99% color gamut for vibrant and accurate visuals.
- Intel Evo Platform: Powered by 12th Gen Intel Core i7 Processor and Iris Xe Graphics for robust performance.
- 16GB LPDDR5 RAM: High-speed 5200 MHz memory for efficient multitasking.
- 512GB PCIe4 M.2 NVMe SSD: Fast storage for quick application loading and data access.
- Ultra-Lightweight Design: Weighing approximately 2.2 pounds for maximum portability.
- Long Battery Life: Up to 12.5 hours of general use and up to 19.5 hours of video playback.
- Comprehensive Connectivity: Includes two USB-C ports with Thunderbolt 4, two USB-A 3.2 ports, a full-size HDMI port, a microSD card reader, and a 3.5mm audio jack.
- Full HD IR Webcam: For clear video calls with AI sound technology for background noise reduction.
Components and Ports
Familiarize yourself with the various components and ports of your LG gram laptop.

Figure 1: Front view of the LG gram 14Z90Q laptop, showcasing its slim display and full-size keyboard.

Figure 2: Close-up view of the laptop's side ports, including 1x Micro SD Slot, 2x USB Type A, 1x Kensington Lock Port, 1x Full HDMI 2.0, 2x USB Type C Thunderbolt™ 4, and 1x Headphone Out.

Figure 3: The Full HD IR Webcam, located at the top center of the display, enables clear video conferencing and facial login.
Setup
Unboxing and Initial Charge
Carefully remove the laptop and its accessories from the packaging. The box should contain the LG gram laptop and a charger. Before first use, it is recommended to fully charge the laptop battery. Connect the charger to the laptop's power port and plug it into a wall outlet.
First Boot and Windows Setup
- Press the power button, located on the top right of the keyboard, to turn on the laptop.
- Follow the on-screen instructions to complete the Windows 11 Home setup process. This includes selecting your region, language, connecting to a Wi-Fi network, and creating a user account.
- Allow the system to download and install any necessary updates.
Operating Instructions
Power Management
- Turning On/Off: Press the power button to turn on. To turn off, click the Start button in Windows, then select Power > Shut down.
- Sleep Mode: Close the lid or select Power > Sleep from the Start menu.
- Battery Life: The laptop features a 72 Wh battery. To maximize battery life, adjust screen brightness, close unused applications, and utilize power-saving modes in Windows settings.
Connecting Peripherals
- USB Devices: Connect USB-A devices to the two USB 3.2 ports. For USB-C devices, use the two Thunderbolt 4 ports.
- External Display: Use the full-size HDMI port or one of the Thunderbolt 4 (USB-C) ports with an appropriate adapter for external monitors. Thunderbolt 4 supports up to 5K display.
- Audio: Connect headphones or external speakers to the 3.5mm audio jack.
- MicroSD Card: Insert a microSD card into the dedicated slot for expanded storage or data transfer.
Network Connectivity
The LG gram supports Wi-Fi 6E for fast and reliable wireless internet access. To connect to a Wi-Fi network, click the Wi-Fi icon in the taskbar, select your desired network, and enter the password if prompted.
Maintenance
Cleaning Your Laptop
- Screen: Use a soft, lint-free cloth slightly dampened with water or a screen cleaner. Do not spray liquid directly onto the screen.
- Keyboard and Chassis: Use a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, ensuring no liquid enters openings.
- Ports: Keep ports free of dust and debris. Use compressed air if necessary, holding the can upright.
Software Updates
Regularly check for and install Windows updates to ensure system stability, security, and performance. You can find Windows Update settings in the Start menu under Settings > Windows Update.
Troubleshooting
This section addresses common issues you might encounter with your LG gram laptop.
| Problem | Possible Cause | Solution |
|---|---|---|
| Laptop does not turn on. | Low battery, power adapter issue. | Ensure the charger is properly connected and the outlet is working. Allow the laptop to charge for at least 30 minutes before attempting to power on again. |
| Short battery life. | High screen brightness, many background applications, power settings. | Reduce screen brightness. Close unnecessary applications. Adjust power settings in Windows to a more power-efficient mode. |
| Wi-Fi connection issues. | Out of range, incorrect password, driver issue. | Ensure you are within range of the Wi-Fi router. Double-check the Wi-Fi password. Restart your router and laptop. Update Wi-Fi drivers if necessary. |
| System crashes or "blue screen" errors. | Software conflicts, outdated drivers, hardware issues. | Ensure all Windows updates and device drivers are current. Run a system diagnostic. If issues persist, consider a system restore or contact LG support. |
Specifications
Detailed technical specifications for the LG gram 14Z90Q laptop.
| Feature | Detail |
|---|---|
| Model Name | 14Z90Q-K.AAB7U1 |
| Display Size | 14 inches |
| Screen Resolution | 1920 x 1200 pixels (WUXGA) |
| Processor | Intel Evo 12th Gen i7 1260P (4.7 GHz) |
| RAM | 16 GB LPDDR5 (5200 MHz) |
| Storage | 512 GB PCIe4 M.2 NVMe SSD |
| Graphics | Intel Iris Xe Graphics |
| Operating System | Windows 11 Home |
| Connectivity | Wi-Fi 6E, Bluetooth |
| Ports | 2x USB-C (Thunderbolt 4), 2x USB-A 3.2, 1x HDMI, 1x MicroSD, 1x 3.5mm Audio Jack |
| Battery | 72 Wh Lithium Ion |
| Weight | 2.2 pounds (approx.) |
| Dimensions (LxWxH) | 0.66 x 12.28 x 8.42 inches |
Warranty and Support
For warranty information and technical support, please refer to the official LG website or contact LG customer service. Keep your purchase receipt and product serial number handy for any warranty claims.
Official LG Support Website: www.lg.com/us/support
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