Hello together,
after many tries with connection problem i found the solution for my problem in this answer.
https://forum.revvox.de/t/timed-out-while-waiting-for-ack/1129/20
But now i run into another problem. I don’t know what the problem is. Here ist the Traceback:

It always abort on the same point.
Thank you
Cebrox
Edit: I have the uart from az-delivery with mini usb.