I set up the box on 20 June. First I had to do an update, which took a good 10 minutes and was then aborted with errors. At some point I was able to use the app without an update. When I had added my blinds, I went to the box settings and lo and behold, the box was updated. Don't ask me why because I always got error messages. I tried it 3 times.

Yes, yesterday, 21.6. Make another attempt today.