I was amazed to come across this- a commercial plug and play solution for Phantom 3, 4 and Inspire that will allow flight anywhere. Phantom 3 model board shown,
From the manufacturers description "NFZ mod board allows you to fly using GPS positioning inside NFZ zones. By default NFZ mod is not activated therefore you can use your Phantom as usual. No NFZ correction will be applied"
From the manufacturers description "NFZ mod board allows you to fly using GPS positioning inside NFZ zones. By default NFZ mod is not activated therefore you can use your Phantom as usual. No NFZ correction will be applied"