4DRC 4D-V4 Quadcopter Operating Instructions

Introduction

Welcome to the 4DRC 4D-V4 Quadcopter. This document provides operating instructions and safety guidelines for your new drone. Suitable for ages over 14.

Important Notice: In order to meet the requirements of the aeronautical radio station's electromagnetic environment, various aero models and UAVs are not allowed to fly within the range of 10 km on each side of the center line and 20 km on both ends of the airport runway. Flying in civil aviation routes and airlines is also restricted. Using various models and drones in no-fly zones issued by relevant state departments is prohibited.

Warnings

1. The packaging and instructions contain important information and should be kept.
2. With this aircraft, you are responsible for ensuring that no harm will be caused to the personal and property of others.
3. Commissioning and installing of the aircraft must be strictly in accordance with the operating instructions. Maintain a distance of 2 to 3 meters between the aircraft and the user or other people to prevent injury during flying and landing.
4. The company and its distributors are not responsible for any loss and damage, as well as injury to people caused by improper use or operation.
5. Children should be guided by adults when operating the aircraft. This product is prohibited for operation by children under 14 years old.
6. Please follow the instructions or packaging instructions to install and use correctly; some parts should be assembled by adults.
7. The product contains small parts; please place it out of the reach of children to prevent the risk of accidental eating or suffocation.
8. It is strictly forbidden to play on the road or in places where water is accumulated to avoid accidents.
9. Please put away the packing materials in time to avoid harm to children.
10. Do not disassemble or modify the aircraft. Disassembly or modification may cause malfunction.
11. The charging cable needs to be inserted into a designated power supply (5V ⎓ 2A) as indicated on the product label.
12. Only use the charging cable configured by the factory.
13. The charging cable is not a toy.
14. When charging the rechargeable battery, it must be under the supervision of an adult. Keep it away from flammable materials during charging. The guardian should not leave the monitoring range.
15. Do not short circuit or squeeze the battery to avoid explosion.
16. Do not mix different types of lithium batteries.
17. The aircraft uses a rechargeable lithium battery that needs to be pulled out for charging.
18. Do not short-circuit, decompose, or throw the battery into fire; do not place the battery in high-temperature environments (e.g., near fire or electric heating devices).
19. The aircraft should be used as far away from other electrical equipment and magnetic objects as possible to avoid mutual interference.
20. Please keep a safe distance from the high-speed rotating propeller to avoid the risk of scalp or cut.
21. The motor is a hot part; please do not touch it to avoid burns.
22. LEDs have laser radiation; please do not give direct light beams to others.
23. Do not use the model near your ears! Misuse may cause hearing damage.
24. For the USB charging cable, use only the provided cable; otherwise, it may cause battery damage.
25. Turn off the switch and unplug the battery when the aircraft's battery is used up. Charge after 30 minutes of rest to avoid damaging the battery.

Accessories and Parts

1. List of accessories included:

The accessories include: 1 Aircraft, 1 USB charging cable, 4 Fan blades, 1 Lithium battery, 1 Screwdriver, 1 Operating Instructions.

2. Name of each part of aircraft:

The aircraft components are labeled: Motor, Battery, Shell, Fan blade clip, Fan blade, Protective ring, Camera, Bottom camera, and LED lights.

3. Aircraft unfolding steps:

Unfold the aircraft in order according to the diagram:

1. Attach arms labeled A1/A2 and B1/B2.
2. Fold out arms labeled B1/B2.
3. Fold out arms labeled A1/A2.
4. Fold out remaining arms labeled A1/A2.
5. The aircraft is now fully unfolded with arms labeled A1/A2 and B1/B2.

Installation and Charging

4. Installation figure of aircraft protection ring:

Align the protection ring parts with the arm hole to make the connection. Confirm the installation is in place before flying to avoid falling during flight. Note: Please be sure to install the protective ring before flying!

5. Wind blade installation diagram:

5.1 Unscrew the screw and remove the fan blade. Note: The fan blade is printed with letters A1, A2, B1, and B2. A1 corresponds to A2, and B1 corresponds to B2. Please install correctly according to the diagram; incorrect installation will prevent takeoff.

5.2 Loosen the screw, open the two fan blades and the connecting parts, and remove the fan blades for replacement. (When an A1/A2 fan blade is broken, replace it with another A1/A2; similarly for B1/B2. Incorrect replacement will cause the aircraft to be unable to take off).

6. Lithium battery charging instructions:

6.1 Buckle the battery lock of the aircraft. 6.2 Remove the battery.

6.3 Charging: Insert the USB interface of the USB charging line into the USB port of a computer (or use a power adapter with an output of 5V ⎓ 2A), and connect the plug at the other end of the USB charging line to the battery socket. The USB red light of the aircraft will go out when charging. The red light will always be on when the battery is full and charging is completed.

Warning: It must be charged with the aircraft charging cable provided by the factory. Other charging cables cannot be used. Be sure to remember to avoid accidents.

Remote Control

7. Name of each part of the remote control:

The remote control features:

• Left Side: Throttle/left and right lever (controls ascent/descent and yaw), Advance fine-tuning, Left fine-tuning, Reverse fine-tuning, Right fine-tuning.
• Right Side: Advance/reverse/left/right control lever (controls pitch and roll/strafe), 360° roll button, Indicator light, One key rotation/circling around button, One-key take-off/landing button, Emergency stop/calibration button, Headless mode/one key return button.

8. Remote control battery installation:

Battery installation: 8.1 Remove the battery cover. 8.2 According to the polarity instructions on the battery compartment, insert 3 x "AAA" batteries (not included).

Note: 1. Identify the positive and negative poles of the battery and the compartment correctly; errors are not allowed. 2. Do not mix old and new batteries. 3. Do not mix different types of batteries.

Instructions in charging:

• Do not put the charged battery in a place with high temperature and heat, such as an open flame or an electric heating device, otherwise damage or explosion may occur.
• Do not hit or beat the surface of hard objects with the battery.
• Do not disassemble the battery.
• Do not immerse the battery in water, and please store the battery in a dry place.
• Do not leave the battery alone when charging.

Warning: When the aircraft is not flying, disconnect the battery plug from the aircraft power connector to avoid battery damage.

Pre-Flight Preparation

9. Environmental requirements before flight:

Please choose an outdoor open environment with no rain, snow, and wind less than Level 3. Please stay away from people ?, trees ?, wires, tall buildings ?️, airport ✈️, and signal transmission towers ? when flying. Do not play indoors.

Note: APP can only be viewed (photographed/recorded) when using the remote controller, and the remote controller cannot be used when using the APP.

10. Pre-flight preparation instructions (using remote control):

10.1 Turn on the power of the aircraft and place it on the horizontal plane. The aircraft will automatically enter the code-matching state, and the front white light and red light of the fuselage will flash.

Note: Set the aircraft in a correct direction, with the nose facing forward. It must be placed on the horizontal plane.

10.2 Turn on the power switch button of the remote controller (step 1). The power indicator of the remote controller will flash. Push the throttle lever upward to the top (step 2) and then push it to the end (step 3). Frequency matching is successful when the unmanned plane lamp stops flashing and turns on normally.

Warning: The aircraft/remote controller must ensure sufficient power or it cannot take off!

10.3 Horizontal calibration operation: Press and hold the calibration button on the remote control. The LED lights on the aircraft flash quickly. When the LED lights on the aircraft are always on, calibration is complete, and the remote controller emits a "beep".

Note: The calibration must be completed only when the aircraft is placed on a horizontal plane.

10.4 Start/Stop: Push the left control lever upward ⬆️ (Figure 2). The aircraft can take off normally. After taking off, all indicator lights will be on. During flight, short press the ? key; the aircraft will stop flying (Figure 3).

Note: This function is suitable for the aircraft in an uncontrolled state. Under normal circumstances, it is recommended to use the one-key take-off/one-key landing key.

10.5 One-key take-off and landing: When unlocking is complete, gently press the "One Key Takeoff/Landing" key ? on the remote control (Figure 4). The aircraft will automatically rise to a height of about 1 meter to maintain a stable flight. Pressing this function key again will cause the aircraft to land slowly.

Pre-flight Sequence Summary: Follow these steps before taking off: frequency matching (reference 10.1) → remote control starting frequency matching (reference 10.2) → horizontal calibration (reference 10.3) → start/stop (reference 10.4) → one-button take-off and landing (reference 10.5).

Remote Control Method

11. Remote control method:

Ascent/Descent: When the left joystick (throttle) is pushed up ⬆️, the rotation rate of the main blade increases, and the aircraft rises. When pushed down ⬇️, the rotation rate slows, and the aircraft descends.

Yaw (Turning): When the left joystick (rudder) is pushed left ⬅️, the aircraft nose turns left. When pushed right ➡️, the aircraft nose turns right.

Pitch (Forward/Backward): When the right joystick (rudder) is pushed up ⬆️, the aircraft moves forward. When pushed down ⬇️, the aircraft moves backward.

Roll/Strafe (Left/Right): When the right joystick (rudder) is pushed right ➡️, the aircraft fuselage deviates to the right. When pushed left ⬅️, the aircraft fuselage deviates to the left.

Advanced Functions

12. 360° roll:

The aircraft can achieve 360-degree flight using joystick operations. For best performance, maintain a height of about 1.5 meters. It is recommended to perform rolls during ascent for easier height maintenance.

• 12.1 360° roll on the left: Short press the 360° roll button, then push the right joystick to the left ⬅️. The aircraft will flip 360° to the left.
• 12.2 360° roll on the right: Short press the 360° roll button, then push the right joystick to the right ➡️. The aircraft will flip 360° to the right.
• 12.3 Roll Forward 360°: Press the 360° roll button for a short time, then push the right joystick upward ⬆️. The aircraft will turn forward 360°.
• 12.4 360° roll backward: Short press the 360° roll button, then push the right joystick down ⬇️. The aircraft will flip 360° backward.

13. Introduction of remote control function and operation:

13.1 Headless mode: The front of the aircraft is the default front in headless mode when code-matching is turned on. To adjust direction, restart code-matching and short press the "headless mode" function key. To exit, press the function key again.

Special prompt: Please ensure the aircraft is aligned with a straight line and let the gyroscope automatically detect it for straight-line headless flight.

13.2 One key return: When the flying distance is too far, use the return function. When turning on code-matching, the remote control must face the tail of the aircraft. During flight, press and hold the one-key home button ?. When the remote control emits a "beep" sound, the aircraft will return automatically. Any joystick operation will release the aircraft from the home function.

13.3 Speed switching: The aircraft defaults to low-speed mode (3-geared switching) upon takeoff. Gently press the remote control: one "beep" for low-speed gear, two "beeps" for medium-speed gear, and three "beeps" for high-speed gear ?.

13.4 Fine tuning function:

• 1. Fine tuning of aircraft moving forward/backward: When the aircraft deviates backward after leaving the ground, press and hold the forward fine-tuning key to adjust. When it deviates forward, press and hold the backward fine-tuning key to adjust.
• 2. Fine tuning of aircraft deviates to the left/right: When the aircraft deviates to the right, press and hold the left fine-tuning key to adjust. When it deviates to the left, press and hold the right fine-tuning key to adjust.

APP Download and Operation

14. APP download and installation instructions:

14.1 Download and install the software: For Google mobile phones, scan the QR code, choose to open, and download in the browser. For Apple systems, scan the QR code to install.

14.2 Link description:

1. Turn on the aircraft's power, go to (Settings) on your mobile phone or iPad, and open the wireless network. Find the device name "4DRC-4K-********" in the wireless network search list and connect. After connection, exit the settings.
2. Open the "4DRC PRO" software icon on your mobile phone to enter the control interface. (Try to stay away from other signal source environments when flying).

15. APP control interface function introduction:

The APP interface includes functions such as Emergency stop, Flight status, More features, Return ?, Takeoff/landing ?, Calibration ⚙️, Fine adjustment, WIFI signal, Aircraft battery power, Settings, Photo/Video, Shutter, Media library, Music, Zoom, and Filter.

Other functions include Gesture photo, 3D stereo, Orbit flight, 360° roll ?, Touch joystick, Speed gear ?, Gravity induction, Lens inversion, Lens switching, and Headless mode ?. The "Japanese hand" mode (throttle on the right) and Picture quality switching are also available.

16. Pre-flight preparation instructions (using APP operation):

16.1 Turn on the power of the aircraft and place it on the horizontal plane. The aircraft will automatically enter the code-matching state, and the front white light and red light of the fuselage will flash.

Note: Set the aircraft in a correct direction, with the nose facing forward. It must be placed on the horizontal plane.

16.2 Turn on the WiFi function in your mobile device, select "4DRC_4K-********" in the WiFi list, and turn on the APP after successful connection. Click on more functions, turn on the touch rocker, and the aircraft lights will turn on normally, indicating successful frequency matching.

16.3 Horizontal calibration operation: In the APP, click the "correction" icon. The LED light on the aircraft will flash, and calibration is completed.

Note: The calibration must be completed only when the aircraft is placed on a horizontal plane.

16.4 One-key Takeoff and Landing: In the APP control interface, click the "one-key take-off" icon ?. The one-key take-off function can be achieved. During flight, click this icon again, and the aircraft will automatically land slowly ?.

APP Application Operation Before taking off, please follow the steps: Open (reference 16.1) → APP Application startup frequency matching (reference 16.2) → horizontal calibration (reference 16.3) → one-touch take-off and landing (reference 16.4).

17. APP Application Control Method:

Ascent/Descent: When the left joystick (throttle) is pushed up ⬆️, the rotation rate of the main blade increases, and the aircraft rises. When pushed down ⬇️, the rotation rate slows, and the aircraft descends.

Yaw (Turning): When the left joystick (rudder) is pushed left ⬅️, the aircraft nose turns left. When pushed right ➡️, the aircraft nose turns right.

Pitch (Forward/Backward): When the right joystick (rudder) is pushed up ⬆️, the aircraft moves forward. When pushed down ⬇️, the aircraft moves backward.

Roll/Strafe (Left/Right): When the right joystick (rudder) is pushed right ➡️, the aircraft fuselage deviates to the right. When pushed left ⬅️, the aircraft fuselage deviates to the left.

18. APP Application function operation introduction:

18.1 Headless mode: The front of the aircraft at startup for frequency matching is the default front in headless mode. To adjust direction, restart frequency matching, enter the APP interface, expand the function menu, and click the headless mode function. When exiting, click this function icon again.

Special prompt: Please ensure the aircraft is aligned with a straight line and let the gyroscope automatically detect it for straight-line headless flight.

18.2 Speed switching: Click the "More Functions" icon in the APP control interface, and the flight speed can also be switched.

18.3 Fine tuning function:

• 1. Fine tuning of aircraft moving forward/backward: When the aircraft deviates backward after leaving the ground, click the forward fine-tuning button of the fine-tuning joystick to adjust. When it deviates forward, click the back fine-tuning button to adjust.
• 2. Fine tuning of aircraft deviates to the left/right: When the aircraft deviates to the right, click the left fine-tuning button on the fine-tuning joystick to adjust. When it deviates to the left, click the right fine-tuning button to adjust.

FCC Compliance

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.