"Your vehicle is not responding" - Pixhawk 4 can't connect QGC

Pixhawk
1

Hi everyone!

When I connect Pixhawk 4 (FMU v5) to computer with USB cable, QGroundControl shows message like this. Pixhawk 4 cannot connect to QGroundControl.

Screenshot from 2020-10-16 14-38-03
Screenshot from 2020-10-16 14-38-031539×863 51.9 KB

But I can upgrade firmware for Pixhawk4 from QGC. It has detected my device.

Screenshot from 2020-10-16 14-40-36
Screenshot from 2020-10-16 14-40-36965×638 54.7 KB

I tried changing the cable, and switching to another computer, but it still is not working

This is the video I recorded about my error
https://youtu.be/nTkhsxxp7Uk

2

First step is to stop using an ancient version of QGC. Update to the latest Stable or Daily build.

3

Ohhhhhhhh, i fixed it.

4

how did you solve it