A few days ago, I read on the most reliable source in the world, the internet, that if you have a class 3 alarm system from BMW, the OBD port is blocked as soon as the alarm goes off. I do want to verify this with the dealer once my holiday is over.
I also read about the OBD key cloning, but I'm not sure whether or not that was an issue with the first F30s. I'm unsure whether or not it still works with the F30 LCI from 2017 that I have