1. Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Yoidesu 4K Projector. Please read this manual thoroughly before using the projector to ensure proper function and longevity.
Key Features:
- 180° Rotatable Stand: Allows flexible projection angles for optimal viewing.
- Electronic Focus and Automatic Correction: Ensures a clear, rectangular image with ease.
- 4K Support & 300 ANSI Brightness: Delivers bright, vivid, and detailed images with native 720P resolution.
- Fast Wi-Fi 6 & Bluetooth 5.3: Provides stable and smooth wireless connectivity for streaming and audio.
- Multi-Device Connectivity: Supports various devices via HDMI, USB, and 3.5mm audio ports.
2. Package Contents
Verify that all items are present in the package:
- 1 x Yoidesu 4K Projector
- 1 x Power Adapter
- 1 x Remote Control
- 1 x HD Multimedia Interface Cable
- 1 x User Manual (this document)
3. Product Overview
Familiarize yourself with the projector's components.

Image: Front view of the Yoidesu 4K Projector. This image displays the projector's front panel, featuring the projection lens on the left and a fabric-covered speaker grille on the right. A small sensor is visible near the lens.

Image: Rear view of the Yoidesu 4K Projector. This image highlights the back panel of the projector, which includes ventilation grilles and various connectivity ports such as USB, HDMI, and a 3.5mm audio jack.
4. Setup Instructions
- Power Connection:
Connect the provided power adapter to the projector's power input port and then plug it into a wall outlet. The projector will power on or enter standby mode.
- Placement and Angle Adjustment:
Position the projector on a stable surface. Utilize the 180° rotatable stand to adjust the projection angle. You can project onto a wall, screen, or even the ceiling for varied viewing experiences.

Image: The Yoidesu projector demonstrating its 180° adjustable stand. The image shows the projector tilted upwards, indicating its flexibility to project at various angles, including onto a ceiling.
- Connecting Input Devices:
Connect your desired input device (e.g., TV Stick, DVD player, laptop, USB drive) to the appropriate port on the projector (HDMI, USB). Use the included HD Multimedia Interface cable for HDMI connections.

Image: The Yoidesu projector displaying content from a connected device. This image illustrates the projector's multi-device connectivity, showing it projecting an image while a smartphone is nearby, suggesting screen mirroring or other connections.
- Remote Control Setup:
Insert 2 x AAA batteries (not included) into the remote control. Point the remote at the projector's IR receiver to operate.
5. Operating Instructions
- Power On/Off:
Press the power button on the projector or the remote control to turn the unit on or off.
- Focus and Keystone Correction:
The projector features electronic focus and automatic keystone correction. Use the remote control to fine-tune the focus if needed. The automatic correction will adjust the image to be rectangular even if the projector is at an angle.

Image: A projected image demonstrating electronic focus and automatic correction. The image shows a clear, rectangular projection on a wall in a living room setting, indicating the projector's ability to automatically adjust for optimal display.
- Source Selection:
Use the "Source" button on the remote control to select the input source (HDMI, USB, etc.).
- Wi-Fi Connectivity (Android 9.0 System):
Navigate to the settings menu using the remote. Select "Wi-Fi" and connect to your desired 5G/2.4G network. This enables online streaming and screen mirroring features.
- Bluetooth Connectivity:
In the settings menu, select "Bluetooth" to pair with Bluetooth headphones or external speakers for enhanced audio.
- Screen Mirroring:
For Android devices, enable screen mirroring from your phone's settings and select the projector from the available devices. The projector supports voice control during Android mirroring.
- Zoom Function:
Adjust the screen size from 100% down to 70% using the zoom function in the settings, allowing you to fit the image without moving the projector.
6. Maintenance
- Lens Cleaning:
Gently clean the projector lens with a soft, lint-free cloth or a lens cleaning brush. Avoid using abrasive materials or harsh chemicals.
- Ventilation:
Ensure the projector's ventilation ports are clear of obstructions to prevent overheating. Do not block the air vents during operation.
- Storage:
When not in use for extended periods, store the projector in a cool, dry place, away from direct sunlight and dust.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No image displayed |
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| Image is blurry |
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| No sound |
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| Wi-Fi/Bluetooth connection issues |
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8. Specifications
| Brand: | Yoidesu |
| Model Number: | Yoidesuqr6ua07nt3-13 |
| System: | Android 9.0 |
| Memory: | 1GB RAM + 8GB Storage |
| Physical Resolution: | 1280x720P |
| Supported Resolution: | 4K, 1080P FHD |
| ANSI Brightness: | 300 ANSI |
| Contrast Ratio: | 18000:1 |
| Projection Ratio: | 1.36:1 |
| Aspect Ratios: | 4:3, 16:9 |
| Projection Size: | 30-220 inches |
| Projection Distance: | 4-14 feet |
| Wi-Fi: | 5G/2.4G Dual-band Wi-Fi 6 |
| Bluetooth: | Bluetooth 5.3 |
| Interfaces: | 2 x USB, 1 x HD Multimedia Interface, 1 x 3.5mm Audio Port |
| Item Weight: | 3.67 pounds |
| Product Dimensions: | 10.24 x 9.84 x 7.87 inches |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or contact Yoidesu customer service.
Note: No official product videos from the seller were found for inclusion in this manual.