P150 Drone Frequently Asked Questions FAQ (Updated 20240701)

XAG 2024 Agricultural Drone Frequently Asked Questions (FAQ)

RevoSpray System

What should I do if the XAG One app shows 0L or a significantly different volume after filling the tank?

Cause: Liquid may have stuck to the vent membrane inside the vent valve, blocking airflow to the level sensor.

Answer: (1) Power off the drone, remove the level sensor, and take out the bottom and side vent valves.

(2) Dry the vent valves thoroughly.

(3) Drain off the tank.

(4) Put the vent valves back in place.

(5) Reinstall the level sensor.

(6) Power on the drone, add some liquid, and check if the app shows the correct volume.

What should I do if the RevoSpray 4 impeller pump is not dispensing water or has low flow?

Cause: (1) Normally, opening the check valve spring requires overcoming both external atmospheric pressure and the spring’s compression force. That is, even if the internal pipeline pressure matches atmospheric pressure, the spring may not open. If the connection between the check valve inlet and the water pipe is airtight, air can get trapped in the pipeline. When the impeller pump is dry, it cannot form a water film, and due to manufacturing tolerances, the pump may lose airtightness. If the impeller pump runs dry, air leakage can occur, preventing liquid from being drawn into the pump. Without liquid in the pipeline, the check valve spring cannot open, and liquid cannot be discharged.

Answer: After adding at least 5L of liquid to the tank, disconnect the water pipe from the anti-drip valve inlet. Run the manual spraying test (XAG One App → Spraying System → Manual Spraying Test), set the flow rate to maximum, turn on all impeller pumps, and wait until the liquid fully discharges. Then, reconnect the water pipe to the anti-drip valve inlet securely and test again.

(2) A Factory Acceptance Test has been conducted on each impeller pump, with the motor set to rotate in one direction. However, in real-world operation, the left and right impeller pump motors rotate in opposite directions. This causes one impeller to run counterclockwise. For the rubber impeller to switch from counterclockwise to clockwise rotation, it needs to overcome the friction resistance against the inner wall of the pump chamber. If the motor speed is too low (i.e., low flow rate), it may not overcome this friction, resulting in abnormal water output, reduced flow, or no water discharge.

Answer: To perform the first spraying test, open the XAG One App, navigate to the Spraying System, and start the Manual Spraying Test. Set the flow rate to maximum. Once the impellers are rotating smoothly, check if the flow rate is normal. After resolving the issue, complete the spray calibration.

When should the planetary gears of the impeller pump be relubricated? What type of grease is recommended?

Answer: It is recommended to lubricate the impeller pump gearbox after every 666.67 hectares of operation for the RevoSpray. High-temperature gear oil or high-temperature grease (rated for 200°C or above, model: FG-912A) is recommended.

What do the indicator lights on the level sensor of the RevoSpray 4 mean?

Answer: (1) Green light flashing once per second: The barometer is functioning normally.

(2) Red light flashing once per second: The barometer shows an excessively negative value. Check if the side vent valve has water ingress. Remove the water or dry the vent valve.

(3) Solid Green: Barometer communication error. Inspect the barometer PCBA board or replace it.

(4) Solid Red: CAN communication error. Check the wiring from the junction box to the level sensor or from the airframe junction box to the payload junction box.

(5) No light: No power supply. Inspect the power supply circuit.

Why does the flow rate suddenly increase when the RevoSpray 4 starts spraying?

Answer: This is normal. Air accumulates in the tubes when the RevoSpray 4 sits used for a period. A larger spray volume is required to open the valve, as a smaller volume may not be sufficient.

What is the purpose of the vent valve on the level sensor of the RevoSpray 4?

Answer: The vent valve prevents liquid ingress while allowing air to flow into the level sensor, ensuring the module functions properly.

What are the precautions for installing 4 nozzles on the P150 agricultural drone?

Answer: (1) When using 4 nozzles, it is not supported to spray with only two front or rear nozzles. However, single-side dual-nozzle operation and simultaneous 4-nozzle operation are supported.

(2) To switch from a 4-nozzle to a dual-nozzle setup, disconnect the front nozzle signal cables and spraying tubes, perform a cold restart of the drone, and recalibrate the spraying system before resuming operation.

(3) For installation and usage, please refer to the XAG P150 4-Nozzle Upgrade Kit User Manual.

What should I do when XAG One prompts "Application system submodule does not match"?

The submodules for the RevoSpray include: nozzles, peristaltic pumps, level sensors, and the liquid tank.

The submodules for the RevoCast include: spreading discs, feeders (screw feeders), level sensors, and the granule container.

Cause: The issue may be caused by loose cables, a faulty cable hub, or a submodule problem. Follow the steps below to troubleshoot:

(1) Check if all submodule connections of the application systems are secure.

(2) If all connections are normal, use a cross-testing method by replacing submodules one by one to identify the faulty component.

(3) If the issue persists, contact XAG customer support or a service center for assistance.

What should I do in case of significant spraying volume errors or when the XAG One prompts "Spraying system parameter error. This may lead to inaccurate spraying"?

Answer: Significant spraying volume errors (over 12%) or the "Spraying system parameter error" prompt are typically caused by incorrect calibration or abnormal flow rates. Follow these steps to resolve the issue:

(1) Ensure the application service and spraying/spreading ESC firmware are up to date before recalibrating.

(2) Verify the accuracy of the level sensor reading. For example, add 20L of water to the tank and see if the app displays a value within ±3% of 20L. Also, check the accuracy of the tank's scale markings.

(3) Inspect the tubing for any flattening, especially around the folding arms and where the pump connects to the tank, as this can affect the flow rate.

(4) Check if the filter at the tank outlet is clogged, as this may restrict the flow rate.

(5) Ensure the correct tank volume is selected in the app.

(6) Inspect the pump impeller for wear or installation errors, which will lead to a fluctuating flow rate.

(7) Recalibration is required if 4 nozzles are installed. (Calibration results for 4 nozzles and 2 nozzles are not interchangeable.)

(8) Do not remove the tubes during calibration. Keep the tube connections consistent between calibration and operation.

What should I do when the app prompts "Pump motor speed error"?

Answer: (1) Check if the impeller is swollen or deformed. This error only occurs when the pump motor cannot rotate, indicating a serious issue that cannot be resolved through spray calibration.

(2) Inspect the output shaft seal of the impeller pump for swelling.

What should I do when the app prompts "Pump motor current error"?

Answer: Perform a manual test in the app and check if the pump current exceeds 4A. If yes, check if the impeller is swollen or deformed. Otherwise, check if it is the case of a clogging filter screen at the bottom of the tank, a swelling pump oil seal, or bending tubes.

What should I do if the impeller pump leaks during operation?

Answer: Check if the output shaft seal ring of the impeller pump is damaged or deformed.

What should I do if the drone does not spray during the first few meters of the operation?

Answer: This may occur during the first-time operation or if the spraying system was emptied in the previous operation, leaving the tubes without liquid at the start. To resolve this, perform a manual spraying test to fill the tubes with liquid before starting the operation.

Does the viscosity of the liquid affect the spraying volume?

Answer: No.

What should I do if the volume remains inaccurate after handling the vent valve?

Answer: Calibrate the flight controller's IMU using a level or a smartphone. (The initial liquid level reading of the tank is highly sensitive to angle. For example, a -3.3° error can cause the reading to change from 30.1L to 34.5L.)

Does a newly purchased drone require pump calibration?

Answer: Yes. Otherwise, default calibration values will be applied, which can lead to significant inaccuracies.

What should I do in the case of inaccurate spraying when applying suspension or powder chemicals?

Answer: In such cases, removing the outlet filter is recommended.

Will placing the drone unevenly at the take-off point result in significant inaccuracy in the level sensor reading?

Answer: There may be some deviation, but it is negligible.

Why does the pump flow rate become inaccurate after the first day or initial use?

Answer: Some chemicals can cause the impeller to swell. Prolonged exposure to these chemicals can deform the impeller, leading to inaccurate flow rate. In such cases, a second calibration is required.

Does the chemical’s concentration affect the level sensor's measurement?

Answer: Tests show that the chemical’s concentration, typically, does not affect the level sensor's accuracy.

What should I do in the case of significant speed variations between the two pumps or a maximum flow rate of less than 12L after calibration?

Answer: Check the following:

(1) Whether the outlet filter screen is clogged.

(2) Whether the tubing is bent.

(3) Whether the anti-drip valve is stuck.

(4) Whether the seal ring is swollen.

RevoCast System

What should I do if the XAG One shows a speed reading for the RevoCast 4's spreading disc motor but says that the disc does not start working properly?

Answer: This may be due to damage to the internal transmission structure of the spreader disc. Disassemble and inspect the internal components, or visit a service center for repair.

What should I do when XAG One prompts “Container is empty” but the powder is not fully applied?

Answer: Powders with poor flowability and low reflectivity can cause uneven discharge – faster in the center and slower on the sides. This may trigger the level sensor to detect an empty container and initiate a return-to-home action. To reduce this issue, pile the powder toward the center when filling the container.

What should I do in case of uneven spreading?

Answer:

(1) Perform spreading calibration and testing on the ground first.

(2) Check if the spreader disc's rotational angle and speed are normal.

(3) Input appropriate parameters, including flight altitude, speed, and spacing.

Note: Before starting the operation, conduct a test run on one or two routes to ensure the breadth and uniformity meet the requirements.

What should I do when XAG One prompts "Screw feeder speed error"?

Answer: This is typically caused by a jammed screw feeder. Check if the screw feeder rotates smoothly and ensure it is free of any foreign objects.

What is the range for spacing settings during spreading?

Answer: The maximum row spacing is typically 20m, but it can be increased to 100m in advanced settings.

What do the indicator lights on the RevoCast 4's granule container sensor mean?

Answer: The container sensor has two indicator lights: one for power supply and one for signal.

Power Supply:

(1) Flashing Green: Indicates a power supply issue with the level sensor. Check the power cable connections and perform a cold restart of the drone.

(2) Solid Green: Indicates normal power supply.

Signal:

(1) Solid Red: Indicates a malfunction in the level sensor. Perform a cold restart of the drone.

(2) Flashing Red: Indicates failed registration of the level sensor. Visit a service center for repair or replacement.

(3) Flashing Yellow: Indicates the level sensor is online. (During initial power-up, the indicator starts with flashing red, then changes to flashing yellow .)

What factors affect the dosage?

Answer: The adjustable dosage for agricultural drones in the XAG One is related to the drone's flight speed, calibration value, and spacing.

How to troubleshoot unprompted errors during spreading calibration for agricultural drones?

Answer: (1) Go to the drone's operation screen and check the top left corner for any error messages.

(2) If there are related errors (e.g., submodule mismatch or motor overcurrent), follow the error prompts to troubleshoot before calibrating.

(3) If no errors are displayed, please contact customer support or service station for assistance.

Why is there a repeated spreading section at the breakpoint during waypoint resumption in multi-flight spreading operations with agricultural drones?

Answer: After spreading, the screw feeder needs to reset to the zero point (stopping at a fixed position to prevent leakage). During the zero-point reset process before the drone returns, the screw feeder continues spreading at a low speed for a short distance. The spread amount in this section is below the dosage (due to the low speed), so the next flight will repeat this section to compensate. As a result, the operation report will show a repeated spreading section.

XAG One

What does the "purple lightning icon" represent in the Route Operation screen?

Answer: The "purple lightning icon" represents the estimated battery return point.

What do the yellow and purple dashed lines represent on the field during autonomous operations?

Answer: Yellow Dashed Lines: access route, obstacle avoidance, and segment change connections.

Purple Dashed Lines: the return safety line selected by the user in the safety zone settings.

Why does the XAG One sometimes prompt "Edit takeoff point?" when changing the drone's takeoff point during operations, but not always?

Answer: When performing the same task, if the drone's takeoff and landing point changes compared to the previous flight (with a deviation of more than 1 meter), the app will prompt "Edit takeoff point?" to remind the user to check whether the route is safe. However, during manual operations, the app will not prompt even if the takeoff points changes.

How to delete a guide point?

Answer: Make sure XAG One is updated to the latest version. You can delete a guide point directly in the app by following these steps: tap the guide point to open the editing screen, then follow the instructions to delete it.

Why cannot close the field during multi-field mapping?

Answer: During multi-field mapping, you need to select "Connect Mode" to close the field.

What does "Idle" mean for the container in XAG One?

Answer: The drone's container has four status: Idle, High Level, Medium Level, and Low Level. "Idle" means the drone has not started spreading, and the level sensor has not performed detection.

Unable to edit flight parameters during multi-field operations?

Answer: During multi-field operations, editing flight parameters is not supported while the operation is in progress.

Why does the route direction change when setting the route spacing?

Answer: The route direction is automatically generated by the system. If the route direction does not meet the operation requirements, users can manually adjust the route direction.

When using XAG One to scan and add the 2024 P-series drones, an error occurs indicating a failed addition?

Answer: The 2024 agricultural drones do not support QR code scanning for adding. Please add the drone via Bluetooth and keep your phone close to the drone during the process.

If a team is disbanded and the fields in the team are not saved to individual accounts, can these fields be recovered?

Answer: In the recorded team, the team leader can view all fields, while members can only see the fields they created. Therefore, only the team leader can save the fields created by other team members to their individual account from the recorded team screen.

How can HD maps mapped by the 2024 agricultural drones be shared with other XAG One accounts?

Answer: The 2024 RealTerra data is saved locally on the phone. It is recommended to share the local HD maps via WeChat.

Propulsion System

What does it mean when the ESC breathing light flashes blue?

Answer: (1) The ESC blue breathing light (cycling from off to on, and on to off): indicates that the ESC has lost the PPM signal. Please check the CAN cable connection.

   (2) If the blue breathing light appears during flight, it means there was a CAN signal connection issue during the flight. After landing, check the CAN connection cable.

What does it mean when the ESC breathing light flashes green?

Answer: (1) The ESC green light flashing slowly (flashing once every 500 ms): indicates that the ESC is updating.

(2) The ESC green light flashing quickly (flashing once every 100 ms): indicates that the ESC update has failed. Please retry the ESC firmware update. If the issue persists, contact XAG customer support.

When updating the ESC firmware, if I find that there are only 3 or fewer ESCs, what should I do?

Answer: (1) Check the power system screen to see which ESC cannot read the values. For example, if ESC 1 shows no values, try swapping the signal cables between ESC 1 and ESC 2 to see if the issue follows the signal cable. If, after swapping, ESC 2 cannot read the values, inspect the signal cable. Use a multimeter to check for any internal disconnections in the cable. If a disconnection is found, replace the signal cable.

(2) If the issue remains with ESC 1 after swapping the cables, inspect the ESC 1 mainboard for abnormalities. Check the internal gold pins of the ESC 1 connector for damage, deformation, or missing pins.

(3) If the issue persists after following the above steps, send the drone to the service station for inspection.

What do the motor speed values in the propulsion system screen indicate?

Answer: (1) 19900: The ESC will display this value for 2 seconds after powering on. If it persists, send the drone to the service station for inspection.

(2) 18900: Indicates that the ESC has not received the control signal from the flight controller. Send the drone to the service station for inspection.

(3) 17900: Indicates an ESC stall alarm. Send the drone to the service station for inspection.

(4) 21900: Indicates an overcurrent alarm. Send the drone to the service station for inspection.

(5) 17910: Indicates that the ESC power supply voltage exceeds the threshold (≥75V). Send the drone to the service station for inspection.

(6) 17920: Indicates an abnormal phase current in the ESC. Send the drone to the service station for inspection.

(7) 23000: Indicates a motor fault or poor contact in the phase wires. Send the drone to the service station for inspection.

What should I do if the XAG One shows an error "ESC Offline" or if the ESC is not in the firmware list?

Answer: (1) If a single ESC light is off, check if the power terminal between the ESC and the cable hub is loose. If all four ESC lights are not on, the cable hub might be faulty, or the battery socket's power terminal might be loose. Corresponding troubleshooting is required.

(2) If a single ESC lights up blue and makes a "do-do-do" sound, check if the ESC signal cable connector is securely inserted and if the pins are damaged or deformed. If all four ESCs have the same condition, inspect whether the flight controller's connection to the cable hub is securely inserted and whether the pins are damaged or deformed.

During the idle test, if one ESC's information cannot be read but all four ESCs are in the drone firmware list, how to handle it?

Answer: Please update the ESC firmware to the latest version. If the update fails or the update cannot be obtained, contact XAG customer support for troubleshooting.

When updating the ESC firmware, if the ESC light does not turn on, how to handle it?

Answer: Cold restart the drone (power off for 5 minutes, then power on again) and retry the ESC firmware update.

When the drone takes off for operation, it idles in place for about 10 seconds before taking off. Is this normal?

Answer: This is normal. To ensure safe operation, when the interval between operations exceeds 5 minutes, it will idle for 10 seconds before takeoff to perform a pre-flight self-check and cool down the propellers.

Power System

Press and hold the battery power button, but the battery does not respond?

Answer: This issue may be caused by loose internal wiring of the battery. You can send the battery to a service station for inspection. Refer to XAG B13970S Smart Supercharge Battery Startup Issue Troubleshooting Guide for detailed instructions.

When the battery is installed on the drone for battery firmware update, the battery indicator lights cycle in a running pattern (the battery power indicator lights are flashing in sequence).

Answer: This may be caused by a power interruption during the update. Follow these steps to troubleshoot:

(1) Check the status of the battery power indicator. If the red light is solid, restart the drone and update the battery firmware.

(2) If the battery power indicator does not show a solid red light, send the battery to a service station for inspection.

After successfully updating the battery firmware, the system prompts for another update upon restart.

Answer This may be due to mixing batteries of different versions, causing the firmware update to fail. You can install only a single battery for the firmware update, or use two batteries of the same version during the firmware update.

(Note: During battery firmware updates, do not mix B13960S, B13970, and B13970S batteries, as it may cause the update to fail.)

XAG One prompts "Cell not activated".

Answer: If the battery was functioning normally before the issue occurred and no components were replaced, the encryption chip of the cell may be damaged. Please visit a service station for inspection.

When starting with dual batteries, XAG One prompts "Battery temperature is low, maximum payload reduced. It will be normal once the temperature rises".

Answer: For operation safety, when operating in low-temperature environments, the low temperature may affect the battery activity, and the system will prompt to lower the payload to ensure flight safety. Once the battery temperature returns to normal, normal payload operations can resume. The low-temperature alarm occurs in the following cases:

(1) The temperature of the battery sub-modules is below 15°C.

(2) All battery sub-modules are above 15°C, but there is a sub-module with a temperature below 25°C, and the maximum temperature difference with another battery exceeds 15°C.

XAG One prompts "Battery performance variance. Please replace the battery". How to handle this?

Answer: Using batteries with a large difference in cycle counts may lead to safety incidents. To ensure flight safety, the power system automatically detects and restricts the cycle count of the two batteries to within 1500 for takeoff. When this error occurs, replace one of the batteries with another that has a closer cycle count.

Flight Controller & Sensor System

Why does the nose direction vary during each return?

Answer: The varying direction is normal. If a safety point is set, the drone's nose will always face the safety point. If no safety point is set, the drone's nose during landing will face the direction of the next flight.

When unbinding the drone, XAG One prompts "Failed to clear device key".

Answer: To delete the device, ensure the phone is near the drone, the drone is powered on, and the phone's Bluetooth is enabled with Bluetooth permissions granted to XAG One.

XAG One prompts "Downward FPV camera communication error".

 Answer: (1) Check if the firmware is updated to the latest version.

(2) Reconnect the cable between the sensor system and the flight controller.

(3) If the issue persists, contact the XAG service station.

XAG One prompts "Obstacle avoidance radar offline".

Answer: (1) Check if the sensor system cable is securely fixed without looseness or damage.

(2) Inspect the cable clamp on the sensor system connector for deformation or damage.

(3) Check for firmware updates.

(4) If the issue persists, contact the XAG service station.

XAG One prompts "Obstacle avoidance radar not connected".

Answer: (1) Check if the firmware is updated to the latest version.

(2) Power off the drone, replug the sensor system communication cable, and power it on again for testing.

(3) If the issue persists, contact the XAG service station.

The drone keeps performing obstacle avoidance during operation, but there are no obstacles in the field. What should we do?

 Answer: If the drone flies in Terrain Following Mode with a low terrain-following altitude setting, its 4D imaging radar may mistakenly identify undulating terrain or plants in the working environment as obstacles, causing the drone to hover.

If the drone flies in Altitude Hold Mode, the drone may hover because of a low flight altitude.

(1) Make sure the firmware is up to date.

(2) For flat terrain without noticeable tall crops or obstacles in the field, we recommend adjusting the flight altitude.

(3) If the issue persists after following the above steps, please contact XAG customer support or a service station for further troubleshooting.

The XAG One app prompts "4D imaging radar power error", " Radar signal synchronizing error", or "Radar data collection error".

Answer: Check and update the radar firmware to the latest version, then restart the drone. If the error message persists, please contact XAG customer support or a service station.

How do I perform flight controller level calibration?

Answer: Open the XAG One app, go to "Device Details - Propulsion System", and follow the on-screen instructions. Once ready, tap "Start Calibration" to proceed.

RTK Positioning System

The "XAG One" app displays "Failed to access device firmware list, please check the device communication" on the firmware list screen.

Answer: (1) Perform a network diagnosis. If the prompt indicates that the mobile phone is not connected to the internet, check if the mobile network is functioning properly and try switching to a different SIM card.

(2) Perform a network diagnosis. If the prompt indicates excessive latency, try reinserting the master and slave 4G antennas on the flight controller.

(3) If the issue persists, please contact XAG customer support or a service station.

The XAG One app displays "High RTK latency".

Answer: RTK signal reception may be poor because of tall obstructions or strong magnetic interference sources near the drone, or the base station being too far from the drone.

(1) Check for environmental interference or obstructions, and move the drone to an open area. Connect to the base station and perform an idle test, hovering test, and flight test in sequence. If the RTK latency returns to normal, the issue is likely due to environmental interference.

(2) For a fixed base station, check whether the network signal of the service provider in the XAG One app is stable. Check if the 4G antennas on the drone are functioning properly. Perform a component replacement test if necessary.

(3) For a portable base station, make sure the drone is within the coverage area of the portable base station. Then inspect the 2.4/5.8G antennas and feeder cables for any issues. Perform a component replacement test if necessary.

When using XRTK6, the XAG One app displays "Rover not in RTK active".

Answer: (1) Check and update the firmware to the latest version.

    (2) Manually select the cloud RTK service on the Device Details screen.

(3) Go to settings on your phone, find "Date & Time" under System & Updates, and sync the phone's time. Then, fully exit the app and restart the XRTK6 device. If the issue persists, please contact XAG customer support or a service station.

The XAG One app displays "RTK error, please take over manually".

Answer: The system has detected an exception in the RTK positioning system. It may not be safe to continue operation and requires manual intervention. It is recommended that you follow these troubleshooting steps.

(1) Use the Tap & Go feature or the remote controller to navigate the drone to a safe landing area. Before sending the RTH command, make sure there are no obstacles along the return route to maintain flight safety.

(2) In an open area, check the antennas for wear or fractures, then reinsert the RTK antennas.

(3) Perform a cold restart of the drone. If the issue persists, please contact XAG customer support or a service station for further troubleshooting.

XRTK6 fails to enter RTK mode.

Answer: (1) Check and update the firmware to the latest version.

    (2) Ensure that Bluetooth is turned on.

    (3) Go to the XRTK6 Device Details screen, tap Reference, and manually select the Cloud RTK service.

    (4) If the issue persists, please contact XAG customer support or a service station. 

No response when pressing buttons during XRTK6 mapping.

 Answer: (1) Check and update the firmware to the latest version.

     (2) Ensure that Bluetooth is turned on.

     (3) Restart the XRTK6 device. If the issue persists, please contact XAG customer support or a service station.

The cloud RTK setup remains stuck on the loading screen.

Answer: If the cloud RTK setup gets stuck and fails to enter RTK positioning mode, try switching to a China Telecom or China Unicom SIM card or connecting the phone to a hotspot from a non-China Mobile SIM card.

XRTK6 positioning deviation.

Answer: (1) Check and update the firmware to the latest version.

     (2) If switching from VRTK to RTK right after the setup of VRTK, the setting may not be applied correctly. The XAG One app may display RTK mode while still using VRTK positioning, causing an overall deviation. To fix this, switch to GPS mode first, then back to RTK mode for accurate positioning.

XRTK6 cannot be added, and the app’s Bluetooth interface only displays XRTK6. How do I resolve this issue?

Answer: This issue may be caused by a missing SN in XRTK6. Please contact an XAG service station for assistance.

RTK6 enters mapping mode but displays a 408 HTTP error. How can this be fixed?

Answer: A 408 HTTP error is caused by the drone not receiving satellite signals. To resolve this, place the drone in an open area to search for satellites. Once satellite data is available, reconnect to the cloud RTK, and wait for it to enter RTK mode.

Selecting cloud RTK in XRTK6 mapping mode results in a “Get password fail” error. How can this be fixed?

Answer: This error is likely due to a Bluetooth disconnection. To resolve it, fully close the XAG One app from the background. Restart the app and select Cloud RTK again.

XRTK6 appears offline in the XAG One app. How can this be fixed?

Answer: Check whether Bluetooth is enabled on the phone. If Bluetooth is already on, try restarting the XAG One app or restarting the XRTK6 device. Then re-enter the Device List to check if it appears online. If the issue persists, please contact XAG customer support.

Why can’t XRTK6 be turned off during charging?

Answer: During charging, to force shut down the device, press and hold the power button for about 15 seconds. However, shutting down the device while charging is not recommended.

Remote Controller

During manual operation, if the SRC4 disconnects from the drone, will the drone continue the operation?

Answer: No. The drone will hover for about 30 seconds and then return home according to the manual operation RTH parameters.

When controlling the drone with the SRC4, will the drone automatically avoid obstacles?

Answer: When piloting the drone with a remote controller, only forward flight supports obstacle detection and stopping. If the drone's nose encounters an obstacle, the drone will brake.

Do the SRC4 and ACS4 support manual field mapping?

Answer: The 2024 model SRC4 and the ACS4 do not contain an RTK module, so they do not support manual field mapping.

Can the SRC4 or ACS4 be used with older drone models?

Answer: No.

When binding a drone to the SRC4 or ACS4, the XAG One app displays "Action failed (failed to set networking mode)". How can this be fixed?

Answer: (1) Ensure that Bluetooth is enabled.

    (2) Perform a cold restart of the drone. Wait 5 minutes before powering it back on. Restart the remote controller and the app.

    (3) Keep the phone, drone, and remote controller as close as possible.

When adding the ACS4 in the XAG One app, an error appears: Not your device; the device has already been added to another account". How can this be fixed?

Answer Check whether the ACS4 is already bound to another account. If so, unbind it before adding it to a new account.

The XAG One app has bound the drone to the ACS4, but the ACS4 cannot control the drone.

Answer: Check whether the Wi-Fi signal indicator on the ACS4 stays on. If the Wi-Fi signal indicator (second light) is off, it indicates that the drone is not properly connected to the controller. Please unbind the ACS4 and rebind it. A green Wi-Fi indicator means the ACS4 is successfully bound to the drone.

The XAG One app displays "Remote controller offline".

Answer: (1) Check if the remote controller is obstructed by obstacles in the environment.

    (2) Unbind and reconnect the remote controller and drone.

    (3) Inspect the drone's antennas for any wear or fracture.

The SRC4 or ACS4 is not charging.

Answer: Ensure that the power adapter supports an output voltage of at least 15V. If not, replace it with a 15V-compatible adapter.

Pressing and holding F1 on the SRC4 or ACS4 does not turn on spraying. How can this be fixed?

Answer: The F1 button may not be working properly due to hardware tolerances. Please remove the F1 knob and place a thin washer underneath it.

When binding a drone to the SRC4 or ACS4, the remote controller is not detected. How can this be fixed?

Answer: This issue may be caused by missing Bluetooth firmware. Please contact an XAG service station to reinstall the Bluetooth firmware.

When scanning a QR code to add a device, the 2024 model SRC4 freezes and restarts. How can this be fixed?

Answer: Please contact an XAG service station to reinstall the system.

When binding the SRC4, an error appears: “Action failed (401, failed to obtain remote controller networking info).” How can this be resolved?

Answer: 1. Check if the battery level is displayed in the upper-right corner of the screen.

     2. Verify whether the remote controller’s network status is normal.

     3. If both the battery level and network status appear normal, the issue may be due to an incorrect serial number. You will need to install a required APK file to fix this. Detailed steps can be found in the document SRC4 Serial Number Recovery Guide.pdf or by visiting a service station for repair.

When binding the SRC4, an error appears: Action failed (402, failed to set drone networking info). How can this be resolved?

Answer: 1. Check if the firmware list of the remote controller is up to date and verify whether the Bluetooth service firmware is installed.

     2. Check if the radar on the drone is offline, as the Bluetooth service is integrated into the 4D imaging radar.

     3. Reset the remote controller system by navigating to System Settings -- More Settings -- Reset System.

     4. Restart the remote controller's Bluetooth, fully close the app from the background, then reopen the app and try binding again.

The SRC4 displays error 8090 when updating firmware.

Answer: The Android system has stored an incorrect device ID. To fix this, you need to install a required APK file. Detailed steps can be found in the document SRC4 Serial Number Recovery Guide.pdf or visit a service station for repair.

After the ACS4 controls the drone, where can I just the dosage?

Answer: The ACS4 only controls the on/off of spraying. Manual spraying parameters can be adjusted within the app.

Are the system logs of the SRC4 and the XAG One app the same? How can I upload system logs?

Answer: No, they are not the same. To upload system logs, go to Home > Settings > More Settings > Upload Logs, then connect to the internet and click Upload.

What is the difference between the XAG One app on the phone and the one on the SRC4?

Answer: They are the same app. The only difference is landscape mode vs. portrait mode.

Annex: SRC4 Indicator Description