You could try this as one last test. Start the Anafi, start the Skycontroller 3 and now take your USB-c cable and plug one end into the Anafi's battery and the other end into the Skycontroller 3. Watch for blinking LED's. this will confirm your controller is paired to your Anafi. After that connect the phone back up as you would normally. If you still have no video\picture from the phone then yes you should return it at place of purchase as that would be a lot faster then waiting for Parrot to exchange it.
I will try, and i would thanks to everyone to try help me