For the complete documentation index, see llms.txt. This page is also available as Markdown.

Updating IF800 Aircraft Firmware

This page is a guide for updating the firmware on an IF800, as well as necessary parameters and payload firmware.

IF800 Ardupilot Firmware Version History

IF800 4.5.6.2

Release Date: Sep 22, 2025

Updated the following parameters:

  • Removed commas in list to cleanup

  • Added CAM2_TYPE = 5

  • RELAY1_PIN (name changed from RELAY_PIN)

  • Added RELAY1_FUNCTION = 1

IF800 4.5.6.1

Release Date: Feb 5, 2025

Updated the following parameters:

  • RTL_ALT = 3000

  • RTL_SPEED = 1500

  • RTL_LOIT_TIME = 2000

  • WPNAV_SPEED_DN = 200

  • LAND_SPEED = 50

  • BATT_ARM_VOLT = 22.5

  • BATT2_ARM_VOLT = 22.5

  • RTL_CONE_SLOPE = 3

IF800 4.5.6

Release Date: Oct 7, 2024

First Ardupilot 4.5.6 firmware build

IF800 4.4.4

Release Date: May 29, 2024

Official IF800 Ardupilot 4.4.4 build

Updated the following parameters:

  • Removed commas in list to cleanup

  • Added CAM2_TYPE = 5

  • RELAY1_PIN (name changed from RELAY_PIN)

  • Added RELAY1_FUNCTION = 1

For safety, remove IF800 batteries and keep IF800 arms folded and propeller holders installed during upgrade process. Powering on the aircraft is not required for this update.

  1. Open Mission Planner on a PC.

  2. Connect a USB-C to USB-A cable between the aircraft's USB port and the PC's USB port.

  3. Connect to the vehicle using the MavLINK Com Port Connection.

  • Note: the COM number may change but always select the "MavLink" option.

  • Then, select Connect in the upper right corner.

  • If "MavLink" option is not available, choose "AUTO" and connect.

  1. Save your current parameters for your records

  • Click, Config

  • Select Full Parameter List

  • Save to File as “Pre-update_Params

  1. Check the Lua Scripts on your aircraft

  • Navigate to Config

  • Select, the MAVFtp tab

  • Then, double-click on APM to expand

  • Once the folder expands, double-click on scripts

  1. Ensure the following two Lua Scripts are on your vehicle:

    • IF800 script v1_0_flipped_front.lua

    • payload_1.lua OR payload_1_final.lua

    If the scripts do not match the above file names, you will need to download the correct scripts and install them on the aircraft. Delete the incorrect scripts by right clicking and selecting delete.

  2. The two correct scripts can be downloaded from the links below.

8. Drag and drop the needed script(s) from the computer's local drive into the script folder

  • IF800 script v1_0_flipped_front.lua

  • Payload_1.lua

9. Verify the Cube Firmware

  • Navigate to the Messages tab.

  • Select Disconnect to stop the Messages list from populating.

  • Scroll through the Messages list and locate the Cube Version for your aircraft (see screenshots below).

  • There is a different firmware file available depending on your airframe and Cube type. It is important to download the correct cube firmware. The possibilities for the IF800 firmware states are as follows:

IF800 Blue Cube 4.4.4 (or earlier)

If your aircraft is a IF800 Blue Cube running 4.4.4 or earlier (4.2.2, etc), download the following firware file to upgrade to 4.5.6.2: IF800 Blue Cube 4.5.6.2

IF800 Orange Cube+ 4.4.4 (or earlier)

If your aircraft is a IF800 Orange Cube+ running 4.4.4 or earlier (4.2.2, etc), download the following firware file to upgrade to 4.5.6.2: IF800 Orange Cube+ 4.5.6.2

IF800 Blue Cube 4.5.6

If your aircraft is a IF800 Blue Cube already running 4.5.6, only parameter changes are necessary. Please proceed to Step 2 to update new IF800 parameters.

IF800 Orange Cube+ 4.5.6

If your aircraft is a IF800 Orange Cube+ already running 4.5.6, only parameter changes are necessary. Please proceed to Step 2 to update new IF800 parameters.

11. Ensure the USB cable is still connected to the aircraft and computer.

  1. Select Setup from the top menu

  • Select Install Firmware from the left side menu

  • Select Load Custom Firmware from the lower right menu.

  1. Locate the previously downloaded firmware file on your PC and install the firmware

  • Wait for the firmware to update.

  • The progress bar will fill and a "Complete" message will pop up.

14. Once the updates are complete, unplug the USB cable.

15. Verify Accelerometer and Compass

This step should be completed outdoors for safety

  • Install a single aircraft battery. (This is an additional safety precaution, as the vehicle will not arm with a single battery.)

  • Turn on the GCS and aircraft.

  • Open the IGC App.

  • Select the IFT logo in the top left.

  • Select Vehicle Setup.

  • Select Summary.

  • Frame, Radio, and Sensors should all have a green circle next to them.

  • In the Frame window, ensure Frame Class is Quad, Frame Type is V, and Firmware Version is 4.5.6

  1. The firmware update and scripts install are now complete. Restart IGC and reboot the drone.

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