I think that the news services besides showing the lock/ neutral/unlock position of the cockpit door, should explain that the communication channels had to be shut off purposefully to not be working at that position, altitude, speed, weather conditions, etc. This was wilful intent to silence the plane from the outside world.
Well, in this incident they don’t have to go looking for all the debris, flight data etc, so this should move a bit quicker. Big mystery now is the pilot ID...
That’s starting to reek. Yup.
Have you read that something was disabled (e.g. the transponder), or are you speculating based on no communications with ATC?