4DRC 4D-FII Quadcopter Operating Instructions

Important Safety Information

Warning:

• Keep packaging and instructions for future reference.
• Users are responsible for ensuring no harm to personal or property of others.
• Aircraft installation and commissioning must strictly follow instructions. Maintain a 2-3m distance from users to prevent injury.
• The company and distributors are not responsible for loss, damage, or injury due to improper use.
• Children should be guided by adults. Operation by children under 14 is prohibited.
• Follow instructions for correct installation and use; some parts require adult assembly.
• Keep small parts away from children to prevent accidental ingestion or suffocation.
• Do not play on roads or in water to avoid accidents.
• Put away packing materials promptly to prevent harm to children.
• Do not disassemble or modify the aircraft, as this may cause malfunction.
• Use the designated 5V ⎓ 2A power supply for charging.
• Using other charging cables may damage the battery and cause danger.
• The charging cable is not a toy.
• Battery charging must be supervised by an adult and kept away from flammable materials.
• Do not short-circuit or squeeze the battery to avoid explosion.
• Do not mix different types of lithium batteries.
• The aircraft uses a rechargeable lithium battery that needs to be removed for charging.
• Do not short-circuit, decompose, throw the battery into fire, or place it in high temperatures.
• Use the aircraft away from electrical equipment and magnetic objects to avoid interference.
• Keep a safe distance from rotating propellers to avoid cuts.
• The motor gets hot; do not touch it to avoid burns.
• LEDs have laser radiation; do not direct the beam at others.
• Do not use the model near your ears to prevent hearing damage.
• Use only the provided USB charging cable.
• To meet aeronautical radio station requirements, stop the remote control in no-fly zones as required.
• Turn off the aircraft and unplug the battery when not in use. Charge after 30 minutes of rest.

Package Contents

1. List of accessories included:

• Aircraft ×1
• USB charging cable ×1
• Fan blade ×2
• Lithium battery ×1
• Screwdriver ×1
• Operating Instructions ×1

Aircraft Components

2. Name of each part of aircraft:

Diagram Description: A drawing of the quadcopter with labels pointing to different parts:

• Fan blade clip
• Motor
• LED lights
• Camera
• Battery
• Shell
• Fan blade
• Bottom camera

Installation and Setup

3. The installation steps of the aircraft camera:

Diagram Description: Two images showing how to insert and remove the camera.

• Press the lock to push the camera out of the card slot and take it out upwards.
• Note: Ensure the camera is securely installed before flying to prevent it from falling.

4. Wind blade installation diagram:

Diagram Description: Two diagrams showing fan blade installation. One shows the four blades labeled A, B, A, B. Another shows how to attach a blade using a screwdriver.

• Unscrew the screw and remove the fan blade.
• Note: Fan blades are printed with letters A1, A2, B1, B2. A1=A2, B1=B2. Install correctly according to the diagram, otherwise the aircraft cannot take off.

5. Landing gear installation diagram:

Diagram Description: An illustration showing how to attach the landing gear to the bottom of the drone.

• Align the landing gear components with the sockets on the bottom of the aircraft and ensure they are securely installed before flying to avoid falling.
• Note: The landing gear enables smooth takeoff. Ensure it is installed before flying.

6. Lithium battery charging instructions:

Diagram Description: Three steps illustrated: 6.1 Buckling the battery lock, 6.2 Removing the battery, and 6.3 Charging the battery using a USB cable connected to various power sources (laptop, desktop, mobile power, adapter, socket).

• 6.1 Buckle the battery lock of the aircraft.
• 6.2 Remove the battery.
• 6.3 Charging: Insert the USB charging cable into a computer USB port or a 5V ⎓ 2A power adapter. Connect the other end to the battery socket. The red indicator is on during charging and turns off when fully charged.
• Warning: Use only the provided aircraft charging cable.

Remote Control and APP

7. Name of each part of the remote control:

Diagram Description: A diagram of the remote control with labels pointing to various buttons and sticks, including:

• Power Indicator
• Left stick
• Power switch
• Speed gear / Fine adjustment
• Horizontal calibration
• Geomagnetic (compass) calibration
• Fine-tune the camera upward
• Fine-tune the camera downward
• Right stick
• GPS switch
• Photo / Video
• One-key return / Headless mode
• Emergency pause button
• Description of remote control indicator: GPS, One-key return, Headless mode.

Button Functions:

• Normal/GPS button: Press and hold for 3s to switch between normal and GPS mode. GPS mode is default.
• Return to Home button: Press once to return home. Press again to cancel. Long press to enter headless mode.

8. Remote control battery installation:

Diagram Description: Two diagrams showing battery installation. One shows the battery cover being opened with a screwdriver. The other shows inserting 4x AAA batteries into the compartment, noting polarity.

• Note: Pay attention to battery polarity. Do not mix old and new batteries or different types of batteries.
• Battery Installation: Use a screwdriver to open the battery cover. Insert 4x AAA batteries (not included) according to polarity.
• Instructions in charging: Do not place charged batteries in high temperatures. Do not hit batteries. Do not disassemble batteries. Store batteries in a dry place. Do not leave batteries unattended during charging.

9. APP download and installation instructions:

9.1 Download and install the software:

Diagram Description: QR codes for downloading the 4DRC PRO app for Google (Android) and iOS systems.

• For Google mobile phones, scan the code to open and download in the browser.
• For iOS systems, scan the code to install from the App Store.

9.2 Link description:

Diagram Description: A sequence of screenshots showing the process of connecting the phone to the drone via Wi-Fi and opening the app.

• Turn on the aircraft, go to Settings, open Wi-Fi, find "4DRC*******", and connect. Exit settings.
• Open the "4DRC PRO" app on your mobile phone to enter the control interface. Stay away from other signal sources when flying.
• Steps shown: Open "4DRC PRO" software -> Select "Go" to enter the control interface -> Select and click "More Features" -> Enter the function menu.

APP Control Interface Functions

10. APP control interface function introduction:

Diagram Description: Multiple screenshots of the APP interface with labels for various functions:

• Top Bar: Satellite signal, Flight status, More features, Return, Takeoff/landing, One-key return, Unlock, Map, Flight distance, WIFI signal, Aircraft battery power, Parameter settings, Photo/Video, Shutter, Media library, Flight record, Zoom, Filter.
• Main Interface: 3D stereo, Reverse the lens, Unlock, Gesture photo, Music, Lens switching, Multipoint flight, Follow, Orbit, Find the plane, Speed gear, Touch joystick, Lens adjustment.
• Note: Lens can be switched in indoor mode; it will be turned off in GPS mode.
• Novice mode: Flight distance default 30m (20m-2000m), Flight altitude default 30m (10m-120m).
• Note: After becoming proficient, close novice mode and set flight distance and altitude for longer flights.

Flight Preparation

11. Environmental requirements before flight:

Diagram Description: Icons representing people, trees, wires, buildings, and a signal tower.

• Choose an outdoor open environment without rain or snow, and wind power less than level 3.
• Stay away from people, trees, wires, tall buildings, airports, and signal transmission towers.
• Do not fly indoors or in areas with weak GPS signals.

12. Preparation instructions before flight:

12.1 Aircraft frequency matching: Turn on the aircraft and place it on a horizontal surface. The front blue light and rear red light will flash. Ensure the aircraft's nose faces forward on a horizontal plane.

12.2 Wi-Fi connection: Turn on Wi-Fi on your mobile device, select "4DRC*******", and open the APP.

12.3 Remote controller activation: Long press the power switch (step 1), push the throttle lever up (step 2), then push it to the end (step 3). The unmanned plane lamp will not flash when frequency matching is successful.

Warning: Ensure the aircraft and remote controller have sufficient power.

12.4 Horizontal calibration: Short press the horizontal calibration button on the remote control. Aircraft lights flash quickly, then stay on when calibration is complete. APP operation: Click "Set more" in the APP interface and follow prompts.

Note: Calibration requires a horizontal surface.

Diagram Description: Figures 1 and 2 show the calibration process on the remote and app.

12.5 Geomagnetic calibration operation:

Diagram Description: Figures 3, 4, and 5 illustrate the geomagnetic calibration process: long press button, rotate aircraft horizontally, then rotate vertically.

• 1. Long press the geomagnetic calibration button until the front blue light and rear red light flash slowly.
• 2. Rotate the aircraft clockwise horizontally until the front blue light is always on and the rear red light flashes slowly. The remote control beeps once.
• 3. Rotate the aircraft clockwise with the tail upward and nose downward until the front blue light and rear red light are always on. The remote control emits a beep.

APP operation: Follow prompts in "Setting more" for calibration.

12.6 Star search status (GPS mode): GPS light is always on. Red tail light flashes quickly when star searching succeeds. Remote controller beeps. Aircraft can be unlocked.

Note: Wait a few minutes for the first search. Take off when the signal reaches 3 blocks or more.

Diagram Description: Figure 5 shows the remote control indicator lights for GPS, One-key return, and Headless mode.

12.7 Start/stop (GPS mode): Push both joysticks outward to unlock. Aircraft can take off normally. All indicators are on after takeoff.

APP operation: Click "One Key Unlock" icon in the APP interface.

Diagram Description: Figures 6 and 7 show unlocking the drone using the remote control and the APP.

12.8 One-key take-off and landing:

APP operation: Click "one-key take-off" icon. Click again during flight to land slowly. If obstacles are present, cancel return and use manual control.

Diagram Description: Figure 8 shows the one-key take-off/landing icon in the APP.

12.9 Normal mode: The aircraft enters normal mode.

12.10 Start / stop (common mode for indoor operation):

Diagram Description: Figures 9, 10, and 11 show the steps for starting/stopping in normal mode: long press GPS button, push joysticks outward, then push left joystick up.

• 1. Long press the GPS button.
• 2. Push the left and right joysticks outward to unlock.
• 3. Push up the left joysticks.

Flight Order Summary: Open (12.1) → Wi-Fi link (12.2) → Remote control frequency matching (12.3) → Horizontal calibration (12.4) → Geomagnetic calibration (12.5) → Star search status (GPS) (12.6) → Start/stop (GPS) (12.7) → One-key take-off/landing (12.8) → Normal mode (12.9) → Start/stop (normal mode for indoor operation) (12.10).

Control Methods

13. Control method:

APP operation: Click "more functions" icon, then "joystick on/off" to use the operation joystick.

Diagram Description: Diagrams illustrating the function of each joystick:

• Left joystick (throttle): Pushed up, increases rotation rate and rises. Pushed down, slows rotation rate and descends.
• Left joystick (rudder): Pushed left, nose turns left. Pushed right, nose turns right.
• Right joystick (rudder): Pushed up, moves forward. Pushed down, moves backward.
• Right joystick (rudder): Pushed right, fuselage deviates right. Pushed left, fuselage deviates left.

Warning: When within 1m of the ground, the aircraft may become unstable due to "ground effect response".

Advanced Functions

14. Introduction to the APP application and remote control function operation:

14.1 Headless mode: The front of the aircraft is the default front in headless mode. Restart frequency matching and long press the "headless mode" key to adjust direction. Press again to exit.

Special prompt: Ensure the aircraft is aligned straight for gyroscope detection.

Diagram Description: Figure 12 shows the headless mode orientation.

14.2 One-key return: Press the one-key return button to return to the geomagnetic calibration position and land slowly. If obstacles are present, cancel return and use manual control.

APP operation: Click the "one-key return" icon in the APP interface. Click again to cancel.

Diagram Description: Figures 13 and 14 show the one-key return process.

Warning:

• Runaway return: If the signal is interrupted for ~4s, the aircraft returns to the signal source and stops.
• Low battery return: The aircraft will forcefully return to 20m above the takeoff point. This cannot be cancelled.

14.3 Speed switching: Default is low-speed mode. Press the remote control for "beep" (low-speed) or "beep beep" (medium-speed).

APP operation: Click "More Functions" in the APP interface to switch flight speed.

Diagram Description: Figures 15, 16, and 17 show speed switching on the remote and APP.

14.4 Waypoint flight mode:

• In GPS mode, click "More Functions" → waypoint flight. The interface changes to a map. Set waypoint track range on the map. Click delete icon to remove waypoints if too dense.
• After setting waypoints, click send icon. The aircraft flies to waypoints. Control direction with joystick.

Diagram Description: Figures 18-22 illustrate setting and executing waypoint flight.

14.5 Orbital flight mode:

• In GPS mode, click "More Features" → orbit flight. The aircraft orbits automatically. Adjust radius on the APP.
• Push right joystick left/right to fly left/right. Adjust orbital speed. Push right joystick front/rear to adjust orbit radius. Press orbit button again to end.

Diagram Description: Figures 23-28 illustrate the orbital flight mode.

14.6 GPS follow mode:

• In GPS mode, click "More Functions" → follow mode. The aircraft uses the distance to the operator as a reference and tracks mobile device location changes.
• Lightly press the red ❌ icon to cancel following.

Diagram Description: Figures 29-30 illustrate the GPS follow mode.

14.7 Lens adjustment:

• Press the fine adjustment button on the remote control to adjust camera angle.
• APP operation: Click "More Functions" in the APP interface to enter lens adjustment and adjust angle as needed.

Diagram Description: Figures 31-34 show lens adjustment on the remote and APP.