Herelink Air Unit failed flashing

Hi everyone, I have problem flashing the air unit out of the box with the following error.

This results in the air unit unable to boot and none of the LED lights up after power on. I managed to get it into bootloader mode to be detected by the flasher but it always fails at the same point.

Any help on this?

Solved, changed usb cable and it works. Seems like the brand new, freshly unrolled cable from the Cube fails to compete with an twisty old cable that I have lying around…