Elios 3 Warning messages

Warning types

Multiple levels of importance are given to different warning messages, expressed using different colors.

COLOR	SEVERITY	EXPLANATION
Blue	Information	Advice for improving the user experience of the Elios system; gives recommended actions which are good for most cases but can be ignored depending on the pilot skill level.
Yellow	Warning	Point that requires attention.
Red	Critical / Error	Point that requires immediate action. Safety of Elios 3, people, and/or property can be impacted, or flight can be made impossible.

Audible/Vibrating warnings

Low battery warnings trigger a flashing frame around the screen and an audible tone.

Make sure the System sound level of the tablet is raised so that the alarm tone can be heard, especially if flights take place in a noisy environment.

Low battery, switch to Forced ATTI mode, drone shutting down automatically after 5min Idle time, RTS/RTH disengaging will trigger the tablet to vibrate.

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Error Messages

Following is a list of actions that should be taken for a particular error or warning message.

Use command Ctrl+f or the search bar above to find a specific warning message

Control and Avionics [Axx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
A01	Stabilization system disabled automatically - Fly with caution [A01].	One or more stability sensors are not responding. The stability of the Elios 3 in ASSIST mode in dark environments might diminish drastically. If the issue persists after restarting the aircraft, the sensor must be changed. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance.
A02	Temporary loss of lidar data [A02]	LiDAR data has not been received for one second. Ensure cables are well connected and have not sustained damage. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance.
A03	Lidar communication timeout - Contact Flyability Support if problem persists [A03]	OBC loses Ethernet connection with the Lidar. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance.
A04	Issue with VIO camera - Please restart the drone [A04]	Please restart the system. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance if the issue persists.
A05	Issue with multiple VIO cameras, stability performance may be diminished - Contact Flyability Support if problem persists [A05]	Significantly increased likelihood of FORCED ATTI due to only one camera image being available. Please restart the system. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance if the issue persists.
A06	VIO camera calibrations are missing, please contact support [A06]	Please restart the system. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance if the issue persists.

Battery [Bxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
B01	Critically low battery - Land now [B01]	The battery has reached a very low level <10%. This is critical; immediately land the Elios 3 in safe conditions and replace the battery with a fully charged one to continue flying. Discharging a battery to a too low voltage can damage it irreversibly
B02	Low battery [B02]	Low battery, a reminder that you only have 20% remaining charge.
B03	Battery communication error - Please restart the drone [B03]	The battery management system is unresponsive, reconnect and try again. If the problem persists use a different battery. Contact Flyability support for further assistance.
B04	Battery is permanently damaged - Contact Flyability Support [B04]	Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance. Do not use the battery until further notice.
B05	Battery not attached properly - Check that the lever is closed [B05]	Battery not attached properly. Check that the lever is closed.
B06	Too cold battery - Cannot fly [B06]	Warm battery in cold conditions.
B07	Too warm battery - Cannot fly [B07]	Battery temperature measured >80°C. Allow the battery to cool.
B08	Remote control battery low [B08]	Low battery, a reminder that 10% charge remains.
B09	Tablet battery low [B09]	Low battery, a reminder that 10% charge remains.
B10	Battery is getting old - Contact Flyability Support to buy a new one [B10]	The battery is reaching the maximum number of cycles and should be replaced soon.
B11	Your battery reached 50 cycles. It is not recommended to fly with a battery above 50 cycles. The reliability and flight performance are not guaranteed and might result in an incident. Flying with this battery will void the warranty in case of battery-related issues.	The battery has reached 50 or more cycles and should be replaced.
B12	Battery temperature sensor error - replug battery and restart drone. Contact Flyability Support if the problem persists. [B12]	Please restart the system. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance if the issue persists.
B13	Land now - the battery is unhealthy. Contact Flyability support and don't use this battery again [B13]	A battery cell imbalance has been detected. Land in a safe place. Use another battery, and contact Flyability support for further assistance.

Control [Cxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
C01	Manual thrust engaged - Move switch UP to arm or enable altitude hold again [C01]	Manual thrust flight mode selected via the corresponding switch on the remote controller.
C02	Sport mode engaged - Fly with caution, switch to ASSIST to limit the drone speed [C02]	Sport flight mode selected via the corresponding switch on the remote controller.
C03	Not in ASSIST mode - Move the switch to ASSIST to be able to arm the drone [C03]	The Elios 3 is not in the ASSIST flight mode when arming the drone. ASSIST flight mode must be selected in order to arm the drone.
C04	Motion detected during arming delay - Aborting [C04]	An angular speed of more than 0,1 rad/s has been detected on one of the axes of the DSM imu.

Camera [CAxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
CA01	Camera error - Please restart the drone [CA01].	One or more stability sensors are not responding. The stability of the Elios 3 in ASSIST mode in dark environments might diminish drastically. If the issue persists after restarting the system, the sensor must be changed. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance.
CA02	No communication with the Camera payload, please restart the drone. If problem persists contact Flyability Support [CA02]	Triggered when the camera payload does not respond. Restart system. If the issue persists, contact Flyability support for further assistance.

Environment [Exx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
E01	Environment too warm, drone might overheat [E01]	Ambient temperature > 50°C
E02	Cold environment fly with caution [E02]	Ambient temperature < 10°C
E03	The drone is flying beyond the operating range of the barometer. [E03]	ATTI-mode is not available anymore. When the drone loses ASSIST, it will automatically switch to MANUAL THRUST mode. Please fly with extreme caution and read the manual for further information.
E04	You reached the Radiation threshold [E04]	Shown after 10s of threshold exceeded.
E05	No radiation measurement received, check the MIRION sensor or contact Support for further assistance [E05]	Triggered when sensor is connected, but no measurement is received for 3s
E06	No communication with the barometer, please restart the drone. If problem persists contact Flyability Support [E06]	Restart system. If the issue persists, contact Flyability support for further assistance.
E07	The drone is flying above the maximum allowed altitude - fly with caution [E07]	With low air density, altitude stability can be disturbed. Use manual thrust for better control.

Storage [Gxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
G01	Camera SD card almost full - Free up 10GB to do a flight [G01]	Less than 10GB available on the camera SD card. Free space on card by importing/saving/deleting previous data collected.
G02	Camera SD card error - contact Flyability Support if the problem persists [G02]	The camera driver reports an error with the sd card. Restart system. If the issue persists, contact Flyability support for further assistance.
G03	Camera SD card missing - contact Flyability support if the problem persists [G03]	No SD card detected. Restart system. If the issue persists, contact Flyability support for further assistance.
G04	OBC storage getting low [G04]	Warning the available OBC SSD storage space is low with less than 60 GB available.
G05	OBC storage almost full - Free up 40 GB to do a flight [G05]	OBC storage is almost full with less than 40 GB available. Free space on drive by importing/saving/deleting previous data collected.
G06	OBC storage full - Data won't be recorded [G06]	OBC storage is full with less than 10 GB available. Data will not be recorded. Free space on drive by importing/saving/deleting previous data collected.
G07	Camera SD card full - Flight will not be recorded [G07]	The camera SD card is full. Data will not be recorded. Free space on drive by importing/saving/deleting previous data collected.

IMU [Ixx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
I01	Calibration needs to be updated - Please restart the drone [I01]	Warning when the calibration files have been updated, and the loaded calibration for rigid IMU is different from the one stored on OBC. It will be updated after a restart.
I02	Calibration communication error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I02]	Unable to check the imu calibration through starnet for rigid imu. If the issue persists, contact Flyability support for further assistance.
I03	Calibration error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I03]	Unexpected error during the calibration check of the rigid imu. If the issue persists, contact Flyability support for further assistance.
I04	Calibration error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I04]	The calibration file of the rigid imu stored on the OBC is missing or in the wrong format. If the issue persists, contact Flyability support for further assistance.
I05	Calibration SN mismatch - Stability performance may be diminished. Contact Flyability Support if the problem persists [I05]	The serial number of the calibration file for the body imu stored on OBC does not match the serial number of the avionics MCU. If the issue persists, contact Flyability support for further assistance.
I06	Calibration needs to be updated - Please restart the drone [I06]	Warning when the files calibration files have been updated, and the loaded calibration for body (damped sensing module) IMU is different from the one stored on OBC. It will be updated after a restart.
I07	Calibration communication error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I07]	Unable to check the imu calibration through starnet for body imu. If the issue persists, contact Flyability support for further assistance.
I08	Calibration error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I08]	Unexpected error during the calibration check of the damped IMU. If the issue persists, contact Flyability support for further assistance.
I09	Calibration error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I09]	The calibration file of the damped imu stored on the OBC is missing or in the wrong format. If the issue persists, contact Flyability support for further assistance.
I10	Calibration SN mismatch - Stability performance may be diminished. Contact Flyability Support if the problem persists [I10]	The serial number of the calibration file for the rigid imu stored on OBC does not match the serial number of the avionics MCU. If the issue persists, contact Flyability support for further assistance.
I11	Calibration needs to be updated - Please restart the drone [I11]	Warning when the calibration files have been updated, and the loaded calibration for vio IMU is different from the one stored on OBC. It will be updated after a restart.
I12	Calibration communication error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I12]	Unable to check the imu calibration through starnet for VIO imu. If the issue persists, contact Flyability support for further assistance.
I13	Calibration error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I13]	Unexpected error during the calibration check of the vio imu. If the issue persists, contact Flyability support for further assistance.
I14	Calibration error - Stability performance may be diminished. Contact Flyability Support if the problem persists [I14]	The calibration file of the vio imu stored on the OBC is missing or in the wrong format. If the issue persists, contact Flyability support for further assistance.
I15	Calibration SN mismatch - Stability performance may be diminished. Contact Flyability Support if the problem persists [I15]	Warning when the payload had been changed but not the calibration, and the serial number of the calibration file for the vio imu stored on OBC does not match the serial number of the VIO MCU. If the issue persists, contact Flyability support for further assistance.
I16	IMU error - Cannot fly, please restart the drone. If problem persists contact Flyability Support [I16]	Selftest failure, DSM IMU. Restart system. If the issue persists, contact Flyability support for further assistance.
I17	IMU error - Cannot fly, please restart the drone. If problem persists contact Flyability Support [I17]	Selftest failure, FC IMU. Restart system. If the issue persists, contact Flyability support for further assistance.
I18	IMU error - Cannot fly, please restart the drone. If problem persists contact Flyability Support [I18]	Selftest failure, VIO IMU. Restart system. If the issue persists, contact Flyability support for further assistance.
I19	In-flight IMU error - Fail safe activated. Please end flight asap and contact Flyability Support. [I19]	In-flight failure, DSM IMU. Contact Flyability support for further assistance.

LiDAR [Lxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
L01	Lidar internal error - Please restart the drone, contact Flyability Support if the problem persists [L01]	Restart system. If the issue persists, contact Flyability support for further assistance. .
L02	Lidar stopped working because it is too hot [L02]	Allow the Elios 3 to cool. Do not fly in environments that are too hot.
L03	Lidar is getting hot [L03]
L04	Lidar too hot - Performance may be reduced [L04]
L05	Lidar too hot - Performance is reduced [L05]

Propulsion [Pxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
P01	Motor communication error - Please restart the drone [P01]	Unable to communicate with at least one motor. Restart system. If the issue persists, contact Flyability support for further assistance.
P02	Motor telemetry communication timeout - Please restart the drone. Contact Flyability Support if the problem persists [P02]	Avionics did not receive response from the motor. Restart system. If the issue persists, contact Flyability support for further assistance.
P03	Motor overheating - Please land now [P03]	A motor reports that it is overheating. Thermal throttling starts from when the coils are 120°C or the mcu is 95°C. When this happens during hovering, the drone loses stability and crashes. Land in a safe place. If the issue persists, contact Flyability support for further assistance.
P04	Motor is getting old - Contact Flyability Support to buy a new one [P04]	Motor reliability and performance is guaranteed for 50 flight hours. This time will soon be exceeded by one or more motors.
P05	Your motor reached 50 h. It is not recommended to fly with a motor above 50 h. The reliability and flight performance are not guaranteed and might result in an incident. Flying with this motor will void the warranty in case of motor-related issues.	Warning: recommended flight hours have been exceeded. This condition voids warranty in case of motor failure. Replace motors as soon as possible.
P06	Motor degradation detected - Please contact Support to replace the motor [P06]	One of the motors failed a health check. Ensure the motor/propeller can spin freely. Access the maintenance tab in Cockpit for further diagnosis. Contact Flyability support for further assistance.
P07	Motor did not power up correctly - Please restart your drone and contact Flyability support if the problem persists [P07]	Restart system. If the issue persists, contact Flyability support for further assistance.

Software [Sxx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
S01	Drone didn't shut down correctly - Check for a CRD file on the Avionics SD card and contact Flyability Support [S01]	Avionics has detected that it has started from a fault reset or an unknown state. Restart system. If the issue persists, contact Flyability support for further assistance.
S02	Communication protocol version mismatch - Please update both Cockpit and the drone to the latest release [S02]	Update drone and/or cockpit to compatible versions. For more information: Elios 3 - System updates.
S03	Transmission FW version mismatch between ground and air unit - Please update both Cockpit, the remote control and the drone to the latest release [S03]	Update drone and cockpit to the latest versions. For more information: Elios 3 - System updates.
S04	Cockpit version not compatible with the drone. Please make sure that both systems are up to date [S04]	Update drone and/or cockpit to compatible versions. For more information: Elios 3 - System updates.
S05	Avionics stopped logging - restart the drone and contact Flyability Customer Support if the problem persists. [S05]	Avionics detects the SD card but the logging stream is closed. Logging not working. Restart system. If the issue persists, contact Flyability support for further assistance.
S06	OBC is initializing - Please wait [S06]
S07	OBC did not initialize properly - Please restart the drone [S07]	Restart system. If the issue persists, contact Flyability support for further assistance.
S08	OBC logging failure - Please restart the drone [S08]	Restart system. If the issue persists, contact Flyability support for further assistance.
S09	Drone cannot be armed in current state - Please restart it, contact Flyability support if problem persists [S09]	Restart system. If the issue persists, contact Flyability support for further assistance.
S10	Internal communication error - restart the drone. Contact Flyability Customer support if the problem persists. [S10]	Restart system. If the issue persists, contact Flyability support for further assistance.
S11	Internal communication error. Contact Flyability Customer support if the problem persists. [S11]	Restart system. If the issue persists, contact Flyability support for further assistance.
S12	Internal communication error with lidar - verify that the lidar connector is fully plugged. Contact Flyability Customer Support if the problem persists. [S12]	Confirm LiDAR connections, and restart the system. If the issue persists, contact Flyability support for further assistance.
S13	Barometer error, drone cannot be armed in current state - Please restart it [S13]	Barometer communication error and/or barometer not coherent. Restart system. If the issue persists, contact Flyability support for further assistance.
S14	USB Connected - Drone cannot be armed [S14]	The drone is connected via USB.
S15	Drone is not activated - Please activate the drone following license activation process or contact Support for further assistance [S15]	Restart the system with open internet connection. If the issue persists, contact Flyability support for further assistance.
S16	Lighting Panel error - Please restart the drone [S16]	No communication or bad data coming from a lighting panel. Restart system. If the issue persists, contact Flyability support for further assistance.
S18	Radiation license is not activated [S18]
S19	Remote ID error. Cannot fly, please restart the drone. If problem persists contact Flyability Support [S19]	Restart system. If the issue persists, contact Flyability support for further assistance.
S20	Remote ID error. Please return the drone and land. Flying without broadcasting required Remote Id messages may violate local regulations [S20]	Not broadcasting remote id messages potentially violating local regulation. In this case return and land. Restart system. If the issue persists, contact Flyability support for further assistance.
S21	Please connect the tablet to internet to update license information [S21]	Loss of internet, reconnect, or connect to a mobile hotspot.
S22	Failed to load inspection. Please select another inspection or create a new one. [S22]
S23	Failed to load asset map for this asset. The next flight will extend the asset map.[S23]
S24	Failed to load relocalization data for this asset. Relocalization will not be available. [S24]
S25	Failed to save asset map. It may not be possible to initialize the next flight with an asset map. [S25]
S26	Failed to restore asset map from previous flight. The asset might have been corrupted. [S26]
S27	Failed to save relocalization data. Relocalization might not be available at the next flight. [S27]
S28	Your license has expired. Premium features are disabled. [S28]
S29	Time tampering detected. Premium features are disabled. [S29]
S30	Issues communicating with the drone. Please restart the tablet, the remote and the drone. Contact Flyability if the problem persists. [S30]	Restart system. If the issue persists, contact Flyability support for further assistance.
S31	Your license is about to expire. Please check your inbox for communication about the renewal. [S31]
S32	Issues communicating with the drone. Please restart the tablet, the remote and the drone. Contact Flyability if the problem persists. [S32]	Restart system. If the issue persists, contact Flyability support for further assistance.
S33	Could not fetch license information, premium features won’t be available. Try restarting the app or connecting to a different network. Contact Flyability if the problem persists. [S33]	Ensure the tablet is connected to the Internet. Use a different or unrestricted network Restart system. If the issue persists, contact Flyability support for further assistance.

Transmission [Txx]

Error Code	MESSAGE	REQUIRED ACTION / EXPLANATION
T01	Weak radio signal - Fly closer to the remote control to not lose connection [T01]	Radio signal is too low, drone and rc must be closer.
T02	Return to Signal interrupted because drone is blocked. Pilot is back in control [T02]	Function is interrupted, control is returned to the pilot.
T03	Return to Signal cannot be activated: no historical trajectory available [T03]	RTS is not available as past trajectory is not available
T04	Return to Signal interrupted because drone stability system is disabled. Pilot is back in control [T04]	Function is interrupted, control is returned to the pilot.
T05	Return to Signal sequence has been activated - Click the ATTI-SPORT button once if you wish to pause [T05]	Displayed when Return to Signal is active.