I have only had my P3P for a couple weeks and I also have anoth P3P that has a broken camera. Is there any other cam I could add or does it have to be the DJI 4K camera? Any help will be appreciated. Also if it can be changed to a diffrent cam is there any videos on a swap? Also could a P3A cam be used on a Pro? Thanks

Myself and others have responded to you on a duplicate thread:

http://forum.dji.com/thread-62680-1-1.html

It would be best to only have one thread per subject, so that answers are not duplicated or lost.