Well, what does Microsoft want in return?
A company simply would not launch an update to ruin your device. Unfortunately I'm in Brazil, place that does not have support for line surface.
Someone here could go to some Microsoft store and show at least this topic, of the causes that many users are having the same problem, meaningfully showing that this is software and not hardware.
Has Microsoft released any updates to spoil or lock the keyboard door? Impossible even because the users who are under warranty could change.
Well unfortunately I have to wait, but if I lived in some country with Microsoft support, I would talk about the case and present this topic.
Guys, there are people from China with the same problem!