Chapter 1: Firmware Flashing
1: Firmware Download Firmware download URL: https://download.aeroeggtech.com/
Select: ArduPilot Firmware ----- AET-U7 ----- Copter (Multirotor)
Download the firmware file u7-7.25-arducopter_with_bl.hex and save it to the computer.
2: Firmware Flashing
Hold down the flight controller Boot button and connect the flight controller to the computer with a USB Type-C data cable. When the connection succeeds, DFU appears in the upper-right corner of the INAV configurator, indicating that firmware flashing is available.
Important: Disconnect all serial-bus peripherals throughout the firmware flashing process, including SBUS receivers, ELRS receivers, CRSF receivers, GPS modules, digital air units, and telemetry links.
Some computers may fail to recognize DFU mode because of a driver issue. Open Device Manager and check under Universal Serial Bus devices for a device named "DFU in FS Mode".
If an exclamation mark is displayed for this device, install or update its driver.
Run Zadig, open Options, and select the first menu item, List All Devices.
Select DFU in FS Mode from the device drop-down list on the main screen.
Click Reinstall Driver or Upgrade Driver to install the driver. Wait for driver installation to complete, then disconnect the flight controller USB cable. Hold the Boot button again while reconnecting USB; DFU mode should now be recognized correctly.
Click Flash Firmware. The INAV configurator first erases all existing data on the flight controller.
Wait while the configurator flashes the firmware to the flight controller.
After flashing is complete, verification runs automatically.
When "Programming: SUCCESSFUL" is displayed, the flight controller firmware has been written successfully.
Close the INAV configurator, disconnect the flight controller USB cable, and reconnect it to the computer.
