1. Introduction
Welcome to the user manual for your new Fujitsu UH-X laptop. This guide provides essential information for setting up, operating, maintaining, and troubleshooting your device. Please read this manual thoroughly to ensure optimal performance and longevity of your laptop.
What's in the Box
- Fujitsu UH-X Laptop
- Power Adapter
- Stylus Pen
- User Manual (this document)
2. Setup
2.1 Initial Power-On
- Connect the power adapter to the laptop's USB-C charging port and then to a power outlet.
- Open the laptop lid. The laptop may power on automatically, or you may need to press the power button located on the side.
- Follow the on-screen instructions to complete the Windows 11 initial setup, including language, region, network connection, and user account creation.
2.2 Stylus Pen Setup
Your Fujitsu UH-X laptop comes with an integrated stylus pen. The pen is stored in a dedicated slot on the side of the laptop. To use it:
- Gently pull the stylus pen from its storage slot.
- The pen is typically pre-paired. If not, follow Windows instructions for Bluetooth device pairing.
- The pen can be used for writing, drawing, and navigating on the touchscreen display.

Image: The Fujitsu UH-X laptop shown in a convertible mode, highlighting its 13.3-inch FHD anti-glare touch display and the included stylus pen. Key features like 400 nits brightness and 100% sRGB color accuracy are also indicated.
3. Operating Your Laptop
3.1 Keyboard and Touchpad
- Backlit Keyboard: The keyboard features backlighting for use in low-light conditions. Use the designated function key (Fn + F key, typically) to adjust brightness or toggle it on/off.
- Function Keys: The F1-F12 keys have secondary functions (e.g., volume control, screen brightness, Wi-Fi toggle). These are typically accessed by pressing the Fn key simultaneously.
- Touchpad: The integrated touchpad supports multi-touch gestures for navigation. Refer to Windows settings for customizing touchpad gestures.
3.2 Convertible Modes and Touchscreen
The Fujitsu UH-X is a 2-in-1 convertible laptop, allowing it to be used in various modes:
- Laptop Mode: Standard laptop configuration for typing and traditional use.
- Tent Mode: Ideal for presentations or media consumption.
- Stand Mode: Similar to tent mode, with the keyboard facing down.
- Tablet Mode: Fold the screen back completely to use it as a tablet with the touchscreen and stylus.

Image: The Fujitsu UH-X laptop displayed in a convertible position, emphasizing its construction with Takumi Craftsmanship, feather-light weight of 997g, Magnesium-Alloy build, MIL-STD certification, and dignified black finish.
3.3 Security Features
- Windows Hello Face Recognition: Configure facial recognition through Windows Settings > Accounts > Sign-in options for quick and secure login.
- HD Camera with Privacy Shutter: The integrated webcam includes a physical privacy shutter. Slide the shutter to cover the camera lens when not in use to ensure privacy.

Image: A close-up of the Fujitsu UH-X laptop screen showing a video call, with icons indicating features like face unlock, an HD camera with a privacy shutter, and a backlit keyboard.
3.4 Ports and Connectivity
Your laptop is equipped with various ports for connectivity:
- USB-A ports
- USB-C ports (for charging and data)
- HDMI port
- Ethernet port
- SD Card slot
- Audio jack
For wireless connectivity, the laptop supports Bluetooth for connecting peripherals like headphones or mice.
3.5 Battery Management
The laptop features a 64 Wh battery with quick charge capability, offering up to 12.6 hours of usage depending on workload.
- To maximize battery life, adjust screen brightness, close unused applications, and enable power-saving modes in Windows settings.
- Avoid fully discharging the battery frequently.
- Charging can be done via the provided power adapter through a USB-C port.

Image: Two Fujitsu UH-X laptops facing each other, with a lightning bolt graphic between them, illustrating features such as 64 Wh quick charge, up to 12.6 hours battery life, and 1TB M.2 SSD storage.
4. Maintenance
4.1 Cleaning Your Laptop
- Use a soft, lint-free cloth slightly dampened with water or a screen cleaner to clean the display.
- For the keyboard and chassis, use a soft cloth. Avoid harsh chemicals or abrasive materials.
- Use compressed air to clear dust from keyboard keys and ventilation grilles.
4.2 Software Updates
Regularly update your Windows operating system and drivers to ensure optimal performance, security, and compatibility. Check for updates via Windows Settings > Windows Update.
4.3 Storage Management
Your laptop comes with a 1TB SSD. To maintain performance:
- Periodically delete unnecessary files and applications.
- Utilize cloud storage for large files to free up local disk space.
- Run disk cleanup utilities provided by Windows.
5. Troubleshooting
This section addresses common issues you might encounter with your Fujitsu UH-X laptop.
5.1 General Issues
- Laptop not powering on: Ensure the power adapter is securely connected and the outlet is functional. Try a different outlet.
- System freezing or unresponsive: Press and hold the power button for 10-15 seconds to force a shutdown. Restart the laptop.
- Overheating: Ensure ventilation grilles are not blocked. Avoid using the laptop on soft surfaces like beds or laps for extended periods, especially in tablet mode. Close resource-intensive applications.
5.2 Specific Component Issues
- Camera quality issues or not working: Ensure the physical privacy shutter is open. Check device drivers in Device Manager and update if necessary. Restart the laptop.
- Bluetooth headphone noise: Ensure headphones are fully charged. Try re-pairing the Bluetooth device. Update Bluetooth drivers. Test with different Bluetooth headphones.
- Card reader not working: Ensure the SD card is inserted correctly. Test with a different SD card. Check Device Manager for card reader drivers.
- Poor battery backup: Review power settings in Windows. Close background applications. Ensure the battery is not excessively old (battery degradation is normal over time).
- Windows Hello face recognition not working in dark: Ensure adequate lighting for the infrared camera to function correctly.
- Low audio volume: Check volume levels in Windows settings and for individual applications. Ensure no external audio devices are interfering. Update audio drivers.
If issues persist, consider performing a system restore or contacting Fujitsu support.
6. Specifications
Below are the key technical specifications for the Fujitsu UH-X Model 4ZR1J37878 laptop:
| Feature | Specification |
|---|---|
| Brand | Fujitsu |
| Model Name | Fujitsu UH-X |
| Model Number | 4ZR1J37878 |
| Screen Size | 13.3 Inches |
| Display Resolution | 1920 x 1080 Pixels (FHD) |
| Display Type | FHD IGZO Display, 400 Nits, Anti-glare Touch |
| Processor | Intel Core i7-1255U (12th Gen), 4.7 GHz, 10 Cores |
| Graphics | Intel Iris Xe Graphics (Integrated) |
| RAM Memory | 16 GB LPDDR4X |
| Storage | 1 TB SSD (M.2) |
| Operating System | Windows 11 Home |
| Battery | 64 Watt Hours Lithium Ion |
| Weight | 997 Grams |
| Dimensions (L x W x T) | 30.9L x 21.5W x 1.7Th Centimeters |
| Special Features | Lightweight, Backlit Keyboard, Fingerprint Recognition, Webcam, Stylus Pen |
| Connectivity | USB (Total 4 ports), Bluetooth |
| Included Software | Microsoft Office 365 |

Image: The Fujitsu UH-X laptop with graphics illustrating its core specifications: Intel Iris Xe Graphics, Intel i7 12th Generation Processor, and 16 GB DDR4 RAM.
7. Warranty and Support
7.1 Warranty Information
Your Fujitsu UH-X laptop comes with a 2-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For detailed terms and conditions of the warranty, please refer to the warranty card included with your product or visit the official Fujitsu support website.
7.2 Technical Support
If you encounter issues that cannot be resolved using the troubleshooting steps in this manual, please contact Fujitsu technical support.
- Manufacturer: Fujitsu, Shimane Fujitsu Ltd, 1180-6, Mitsugane, Hikawa-cho, Izumo-shi, Shimane 699-0405, Japan
- Importer (India): Lenovo (India) Private Limited, RBD Icon, Level 2, Doddenakundi Village, Marathahalli Outer Ring Road, K. R. Puram Hobli, Bangalore 560037, Karnataka, India
For the most current support contact information and resources, please visit the official Fujitsu website or the Fujitsu brand store on Amazon: Fujitsu Store.