1. Download and install on your computer.QGroundControl
2. Download the firmware binary and the parameter file to your computer. These files will be available on
the link sent to you via email.
3. Insert the micro-usb connector in the flight controller as described above (do not attach it to your
computer yet)
4. Start QgroundControl
5. Click on the settings button (cogwheel icon on top)
6. Click on 'Firmware'
7. Attach the USB cable to your computer, when properly connected this will be indicated on
QGroundControl.
8. Make sure the PX4 firmware option is selected, check 'Advanced' and choose 'Custom' from the drop-
down list, then click OK.
9. A file select dialog should appear, select the correct .px4 file. The upgrade process should now start and
will inform you when it has finished. If the upgrade fails you can try again or use a different (thicker) USB
cable.
10. Proceed to load the new parameter file as described below
Most firmware upgrades come with a parameter file. It is important to install the new parameters as they can
contain crucial settings for the new firmware.
1. While the USB cable is connected, start QgroundControl and wait for the vehicle to connect
2. Click on the settings button (cogwheel icon on top)
3. Click on 'Parameters'
4. Click on the 'Tools' drop-down on the right side of the screen
5. Select 'Load from file'
6. Select the correct parameter file from your computer and click "open"
7. Leave the USB cable connected for at least 10 seconds after selecting the parameter file.
8. Perform any additional tasks as described in
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