This firmware is code, and code is speech[0]. Any law making speech illegal is unconstitutional. I'm puzzled as to why the DMCA (or this part of it) hasn't been overturned yet.
[0] https://en.wikipedia.org/wiki/Junger_v._Daley
It hasn't been overturned for the same reason copyright hasn't been despite it restricting people's speech.
It hasn't been overturned for the same reason copyright hasn't been despite it restricting people's speech.