In the electronics industry, it has been a long standing question about whether a software update requires additional FCC certification. I'm sure DJI knows how it works in the drone sector but in general, if you only make minor updates to the UI...
The website says "authorized retail store" but they aren't listed on dji.com as an authorized anything so I would be wary. There are new M4P drones in the classified, have you looked there?
Best summary of the article; it's all anyone can ask for:
“The US government has every right to strengthen national security measures, but this must go hand in hand with due process, fairness, and transparency,” Welsh says.
I've already answered those questions a couple times in separate posts and the article addresses them as well. In addition, I've answered the same questions in past posts about similar incidents. I'm starting to feel like I'm not getting thru...