Does the EU Version Xiaomi MI-Control-Hub work?

Hi,
I just got from Amazon the EU-version the Xiaomi Mi Controller Hub and try to find the developer key.
The procedure i found so far is to download the app, set things to china and connect to the hub. Only the hub is nowhere to be found.
When setting everything to Germany i can easily connect hub with app but with none of the required menue items.
The status right now is I can get everything connected within the Xiaomi universe but can’t connect to OpenHab.
One idea is to use an old access point, set up a VPN to china and try things again, just with a chinese network.
Are there any other ways to get the key or establish a connection between OpenHab and the Xiaomi world? Should I get a hub from china?
The version of the app is 5.6.65
Thanks,
Sarah