Herelink fail to update

[Sven (Rehkitzrettung Osnabrücker Land)]

Please try again flashing the AIRUNIT via USB on a Windows computer.

But first install the Google Driver manually as follows:

Herelink new system update

Get the driver from here: Get the freeware Tool “DriverStoreManager”. You will find it via Google. Install the driver by using this tool. Not entirely sure but from your screenshot I would assume that the missing driver is the problem. You may give it a try.