1. Introduction
This manual provides essential information for the safe and efficient operation of your BenQ GV31 1080p Portable LED Projector. Please read it thoroughly before using the device and retain it for future reference.

Image: Front-side view of the BenQ GV31 Portable LED Projector, showcasing its compact, cylindrical design with a white casing and a speaker grille on the front.

Image: The BenQ GV31 projector positioned on a small wooden table, illustrating its portable nature and suitability for various indoor settings.
2. Package Contents
Verify that all items listed below are included in your product package. If any items are missing or damaged, please contact your retailer.
- BenQ GV31 Projector
- Base
- Remote Control (RCI074)
- Android TV Dongle (QS02)
- Power Cable
- User Manual (this document)
- Warranty Card

Image: A visual representation of the BenQ GV31 projector and its accessories, including the main unit, its base, the remote control, and the Android TV dongle.
3. Product Overview
3.1. Projector Components

Image: Side view of the BenQ GV31 projector, highlighting the projection lens and the front panel design.

Image: Rear view of the BenQ GV31 projector, displaying the top-mounted control buttons and the integrated carrying handle.
3.2. Ports and Connections

Image: A detailed diagram illustrating the various input and output ports on the BenQ GV31 projector, including USB-A 2.0, HDMI 1.4b, USB-C, Audio Out, and the Power Adapter Port.
- USB-A 2.0 (Reader): For connecting USB storage devices to play media.
- HDMI 1.4b (HDCP1.4): For connecting external video sources such as Blu-ray players, game consoles, or laptops.
- USB-C (PD, Alt, Reader): Supports power delivery, alternate mode for video output, and media reading from USB-C flash drives.
- Audio Out: For connecting external audio systems or headphones.
- Power Adapter Port: For connecting the power cable to supply power to the projector.
3.3. Android TV Dongle Slot
The BenQ GV31 features an internal slot for the included Android TV dongle, providing integrated smart TV functionalities.

Image: Underside view of the BenQ GV31 projector, revealing the dedicated compartment for the Android TV dongle, ensuring a neat and integrated setup.
4. Setup
4.1. Powering On/Off
- Connect the power cable to the projector's power adapter port and then to a power outlet.
- Press the power button on the projector or the remote control to turn on the device.
- To turn off, press the power button again and confirm the shutdown.
4.2. Initial Android TV Setup
Upon first use, follow the on-screen instructions to set up your Android TV dongle, including connecting to Wi-Fi and logging into your Google account.
4.3. Placement and Projection
The BenQ GV31 offers flexible placement options due to its rotational design and automatic adjustments.
- Rotational Angle Projection: Adjust the projector's angle to project onto walls, ceilings, or any surface.
- Automatic Focus: The projector automatically adjusts the image focus for clarity.
- Automatic Vertical Keystone Correction: The projector automatically corrects vertical image distortion to ensure a rectangular picture.

Image: The BenQ GV31 projector projecting an image onto a ceiling, demonstrating its rotational angle projection capability for versatile viewing.

Image: A visual representation of the automatic focus function, showing the projector adjusting the image for optimal clarity.

Image: A diagram demonstrating the automatic vertical keystone correction, which adjusts the image shape to be perfectly rectangular even when projected at an angle.
4.4. Projection Distances and Screen Sizes
The optimal projection distance varies depending on the desired screen size.

Image: A diagram illustrating recommended projection distances for achieving 80-inch (2.0m/7.0ft), 90-inch (2.4m/7.8ft), and 100-inch (2.7m/8.7ft) screen sizes with the BenQ GV31 projector.
5. Operating Instructions
5.1. Navigation with Remote Control
Use the included remote control to navigate the Android TV interface, select apps, adjust settings, and control media playback.
5.2. Content Playback (Android TV & Netflix)
The projector comes preloaded with Android TV and Netflix, allowing direct access to a wide range of streaming content.

Image: A screenshot of the Android TV interface, displaying popular streaming applications like Netflix, YouTube, and Google Play Movies & TV, indicating integrated smart features.

Image: Individuals enjoying a movie projected by the BenQ GV31, demonstrating its use for home entertainment.
5.3. Wireless Casting (AirPlay & Chromecast)
Wirelessly cast content from your iPhone/iPad/Mac, Android, and PC devices using AirPlay and Chromecast.

Image: A diagram illustrating the AirPlay and Chromecast wireless casting capabilities, showing how various devices can connect to the BenQ GV31 projector.
5.4. USB-C Functionalities
The USB-C port offers versatile connectivity options:
- Charging: Can be charged from a USB-C power bank.
- Power Supply: Acts as a power supply for mobile devices.
- Display & Charging for Nintendo Switch: Connect and charge your Nintendo Switch via a single USB-C cable.
- Data Transmission: Read media directly from USB-C flash drives.

Image: A visual guide detailing the multiple functions of the USB-C port, including charging from a power bank, supplying power to mobile devices, connecting and charging a Nintendo Switch, and reading data from USB-C flash drives.
5.5. Audio Features
The BenQ GV31 is equipped with a 2.1CH surround speaker system, providing 16W output with extra bass.
- Powerful Bass at 270°: Enjoy rich audio with enhanced bass from the 270-degree wireless speakers.
- Clear Sound from Any Angle: The speaker design ensures clear audio output regardless of the projector's orientation.
- Wireless Speaker Mode: Use the projector as a standalone Bluetooth speaker to play music from your mobile devices.

Image: A graphic representing the powerful bass output of the BenQ GV31's integrated speaker system.

Image: A diagram illustrating the projector's ability to deliver clear sound consistently, regardless of its orientation or placement.

Image: The BenQ GV31 projector operating in wireless speaker mode, shown connected to a smartphone, indicating its dual functionality as a portable speaker.
5.6. Battery Life
The projector's internal battery provides extended usage for portable entertainment.
- Video Playtime: Up to 180 minutes (3 hours).
- Music Playtime: Up to 300 minutes (5 hours).

Image: A graphic displaying the estimated battery life of the BenQ GV31, indicating 180 minutes for video playback and 300 minutes for music playback.
6. Connectivity
The BenQ GV31 offers various connectivity options for seamless integration with your devices.
- Wi-Fi: Integrated Wi-Fi for internet access and streaming.
- Bluetooth 5: For connecting wireless audio devices or using the projector as a Bluetooth speaker.
- HDMI: Connect external high-definition sources.
- USB 2.0 Type-A: For media playback from USB drives.
- USB 3.0 Type-C: Multi-functional port for power delivery, video output, and data transfer.
7. Maintenance
7.1. Cleaning
- Use a soft, lint-free cloth to clean the projector's exterior.
- For the lens, use a specialized lens cleaning cloth and solution. Avoid harsh chemicals.
- Ensure the projector is turned off and unplugged before cleaning.
7.2. Bulb Recycling
Please refer to local regulations for proper recycling of projector bulbs. Information on bulb recycling can be found here.
7.3. Information on Broken Bulbs and Cleaning
In the event of a broken bulb, exercise caution. Do not touch broken glass directly. Refer to specific guidelines on how to clean and dispose of broken or damaged lamps safely. More information can be found here.
8. Troubleshooting
If you encounter issues with your BenQ GV31 projector, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No image displayed | Power cable disconnected, input source not selected, lens cap on. | Check power connection, select correct input source (HDMI, Android TV), remove lens cap. |
| Image is blurry | Out of focus, projector too close/far from screen. | Allow automatic focus to adjust. Adjust projector distance as per section 4.4. |
| Image is distorted (trapezoid shape) | Projector not perpendicular to screen. | Allow automatic vertical keystone correction to adjust. Reposition projector if necessary. |
| No sound | Volume too low, external audio device not connected properly, mute enabled. | Increase volume, check external audio connections, disable mute. |
| Remote control not working | Batteries depleted, obstruction between remote and projector. | Replace batteries, ensure clear line of sight to the projector's IR receiver. |
9. Specifications
| Feature | Specification |
|---|---|
| Brand | BenQ |
| Model | GV31 |
| Display Technology | DLP |
| Native Resolution | 1920 x 1080 (1080p) |
| Brightness | 300 ANSI Lumens |
| Aspect Ratio | 16:9 |
| Image Contrast | High |
| Refresh Rate | 60 Hz |
| Audio | 2.1CH Surround Speaker, 16W (4Wx2 midrange tweeters + 8W woofer) |
| Connectivity | Bluetooth 5, HDMI 1.4b, USB 2.0 Type-A, USB 3.0 Type-C, Wi-Fi |
| Additional Features | Integrated Speaker, Digital Keystone Correction, Portable, Integrated Wi-Fi, Android TV |
| Power Source | AC (230V), Internal Lithium-ion Battery |
| Battery Life (Video) | Up to 180 minutes |
| Battery Life (Music) | Up to 300 minutes |
| Item Weight | 2.94 Kilograms |
| Recommended Use | Home cinema |
10. Warranty and Support
Your BenQ GV31 projector comes with a limited warranty. Please refer to the included Warranty Card for detailed terms and conditions, including coverage period and service procedures.
For technical support, troubleshooting assistance beyond this manual, or warranty claims, please visit the official BenQ support website or contact their customer service department. Contact information can typically be found on the BenQ website or on your Warranty Card.