Very true lka. The other BIG problem is a lot of folks associate the P3 4k Standard / 4k firmware with the Advanced / Professional firmware they are like oil and water... both are liquid but they don't mix.... fly safe...
Hmm.... at this point I would call dji (you ight be on hold for 10-15 mins, but no hang ups like their old phone system) and get them to walk you through reinstalling your firmware. And if that doesn't work... get them to replace it.
Not sure if it was mandatory but.... my motors would not start nor would the icm calibrate until I downloaded the FW. Not trying to argue my point this is just my experience...
I had the exact same thing happened to me. When I connected the app it told me I needed to update. I have only had the 4k for 2 days so I don't know all of the lingo just yet but you should see update required.