1. Introduction
The FOXWELL Y406D Elite is a professional-grade 2-way articulating borescope camera designed for detailed inspection in hard-to-reach areas. Featuring a dual-lens probe, high-definition IPS display, and robust construction, it is an essential tool for automotive, plumbing, HVAC, and industrial applications. This manual provides instructions for safe and effective use of your device.

Image 1.1: The FOXWELL Y406D Elite Borescope Camera with its flexible probe and integrated display.
2. What's in the Box
Verify that all items are present upon unboxing:
- 1x Articulating Borescope (FOXWELL Y406D Elite)
- 1x 2-in-1 USB-C Cable (for charging and data transfer)
- 1x User's Manual
- 1x Hook Tip
- 1x Magnet Tip
- 1x Carrying Case Bag
- 1x 32GB MicroSD Card (pre-installed or included separately)

Image 2.1: All components included in the FOXWELL Y406D Elite package.
3. Key Features
- Ultra-Slim 0.25" (6.5mm) Dual-Lens Probe: Allows access to extremely tight spaces, offering both front and side views.
- 220° 2-Way Articulation: Mechanically steerable probe for comprehensive viewing angles without disassembly.
- HD IPS Display: Provides clear, vivid, and sharp images and videos from any viewing angle.
- Adjustable LED Lights: Six high-intensity LEDs illuminate dark, damp, or oily environments.
- 4X Digital Zoom: Magnify details for closer inspection.
- IP67 Waterproof Probe: Designed to withstand water, dust, and oil in harsh environments.
- Overheat Protection: Automatic shutdown if probe temperature exceeds 70°C (158°F) to prevent damage.
- Integrated 32GB Storage: Capture and store over 10,000 photos or 50 videos directly on the device.
- USB-C Connectivity: For fast charging and efficient data transfer to a computer.
- Ergonomic Design: Symmetrical control knob for comfortable and precise operation.

Image 3.1: Overview of the borescope's display and primary features.
4. Setup
4.1 Charging the Device
- Connect the provided USB-C cable to the device's USB-C port.
- Connect the other end of the cable to a standard USB power adapter (not included) or a computer's USB port.
- The charging indicator will show the battery status. Ensure the device is fully charged before first use. A full charge provides approximately 5 hours of continuous operation.

Image 4.1: The borescope connected for charging, illustrating battery status.
4.2 Inserting the MicroSD Card
The device comes with a 32GB MicroSD card pre-installed or included separately. If not pre-installed:
- Locate the MicroSD card slot on the side of the device.
- Gently insert the MicroSD card with the gold contacts facing down until it clicks into place.
4.3 Powering On/Off
- To power on, press and hold the Power button until the screen illuminates.
- To power off, press and hold the Power button until the screen shuts down.
5. Operating Instructions
5.1 Basic Controls Overview
Familiarize yourself with the control panel:
- Power Button: On/Off, LED light adjustment.
- OK Button: Confirm selection, capture photo/start recording.
- Menu Button: Access settings.
- Up/Down/Left/Right Buttons: Navigation, zoom, image rotation, lens switching.
- Probe Joystick/Thumb Wheel: Mechanically articulates the probe tip.

Image 5.1: The main unit of the borescope showing the display and control buttons.
5.2 Articulating the Probe
The probe features 2-way 220° mechanical articulation:
- Use the thumb wheel on the handle to precisely control the bending direction of the probe tip.
- The probe can bend up to 220 degrees in two directions, allowing you to navigate around obstacles and view different angles.

Image 5.2: The borescope probe demonstrating its 220° articulation capability.
5.3 Switching Lenses and Viewing Modes
The Y406D Elite features a dual-lens system (front and side camera):
- Press the designated button (often labeled with a camera icon or 'M' for Mode) to switch between Front View, Side View, or Split-Screen Dual View.
- In Split-Screen mode, both front and side camera feeds are displayed simultaneously.

Image 5.3: The display showing options for front, side, and dual camera views.
5.4 Adjusting LED Lights
The probe tip is equipped with adjustable LED lights:
- Press the Power button briefly to cycle through different brightness levels (Off, Low, Medium, High).
- Adjust the brightness to achieve optimal visibility without glare in various inspection environments.

Image 5.4: The probe tip with adjustable LED illumination settings.
5.5 Using the Zoom Function
The device supports up to 4X digital zoom:
- While in live view, use the designated zoom buttons (often the Up/Down navigation buttons) to zoom in or out.
- This allows for closer examination of small details.

Image 5.5: The display demonstrating the 2X and 4X zoom capabilities.
5.6 Capturing Photos and Videos
The Y406D Elite allows for one-touch capture:
- To take a photo: In live view, press the OK button once. A camera icon will briefly appear on the screen, indicating a photo has been saved.
- To record a video: In live view, press and hold the OK button for a few seconds. A recording indicator will appear. Press and hold the OK button again to stop recording.
- All media is saved to the internal 32GB MicroSD card.
5.7 Reviewing Media
- Access the album/gallery mode via the Menu button.
- Use the navigation buttons to browse through saved photos and videos.
- Press OK to view a selected item.
5.8 Data Transfer to Computer
- Connect the borescope to your computer using the provided USB-C cable.
- The device should appear as a removable storage device.
- You can then access and transfer photos and videos from the MicroSD card to your computer.

Image 5.6: The borescope connected to a computer for file transfer and charging.
6. Maintenance
6.1 Cleaning the Probe and Lens
- After each use, especially in dirty or oily environments, gently wipe the probe and camera lens with a soft, clean cloth.
- For stubborn grime, use a small amount of isopropyl alcohol on the cloth. Avoid abrasive materials or harsh chemicals.
- Ensure the lens is clean for optimal image clarity.
6.2 Storage
- Store the borescope and its accessories in the provided carrying case to protect them from dust, impacts, and extreme temperatures.
- Avoid coiling the probe too tightly to prevent damage to the internal articulation mechanism.
6.3 Overheat Protection
The device is equipped with a smart heat protection system:
- If the probe temperature exceeds 70°C (158°F), the device will automatically shut down to prevent damage.
- Allow the probe to cool down before resuming operation.

Image 6.1: Visual representation of the borescope's overheat protection mechanism.
6.4 IP67 Waterproof Rating
The probe is IP67 rated, meaning it is protected against dust ingress and can withstand immersion in water up to 1 meter for 30 minutes. This allows for inspection in wet or damp conditions, but the main unit is not waterproof.

Image 6.2: The borescope probe demonstrating its IP67 waterproof capability.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low battery; Device malfunction | Charge the device fully. If problem persists, contact support. |
| No image on screen | Camera lens dirty; Cable connection loose; Device malfunction | Clean the camera lens. Ensure the probe cable is securely connected. Restart the device. |
| Image is blurry or unclear | Camera lens dirty; Incorrect focal distance; Insufficient lighting | Clean the camera lens. Adjust the distance to the object. Increase LED brightness. |
| Probe articulation not working | Mechanical obstruction; Damaged articulation mechanism | Ensure no debris is blocking the probe tip. Avoid forcing the articulation. If damaged, contact support. |
| Cannot save photos/videos | MicroSD card full; MicroSD card not inserted correctly; MicroSD card corrupted | Delete old files or replace MicroSD card. Reinsert MicroSD card. Format MicroSD card (this will erase all data). |
| Device shuts down unexpectedly | Low battery; Overheat protection activated | Recharge the device. Allow the probe to cool down if it was operating in high temperatures. |
8. Specifications
- Model: Newly Upgraded FY406D Elite
- Probe Diameter: 0.25 inches (6.5mm)
- Probe Length: 5.3 feet (1.6 meters)
- Articulation: 2-Way, 220° mechanical steering
- Camera: Dual-lens (Front and Side)
- Display: HD IPS Screen
- Zoom: 4X Digital Zoom
- Lighting: 6 Adjustable LED Lights
- Waterproof Rating: IP67 (probe only)
- Storage: Built-in 32GB MicroSD card
- Battery: Rechargeable (approx. 5 hours continuous working)
- Charging Port: USB-C
- Overheat Protection: Automatic shutdown at 70°C (158°F)
- Item Weight: 2.29 pounds
- Package Dimensions: 12.52 x 8.86 x 2.64 inches
9. Warranty & Support
9.1 Warranty Information
- Quality Backup: 1 Year
- Return/Replacement Policy: 30-Day
- For detailed warranty terms and conditions, please refer to the official FOXWELL website or contact customer service.
9.2 Technical Support
- Lifetime Technical Support: FOXWELL provides lifetime technical support for this product.
- If you encounter any issues not covered in the troubleshooting section or require further assistance, please contact FOXWELL customer support.
- Contact information can typically be found on the FOXWELL website or in the product packaging.