I recently installed a new camera on my phantom 3 standard, when I go to the app the camera button is grey, if I click on it the screen comes up black and says my remote has a weak signal...the camera is functioning properly, I can control the gimble from my remote and it moves when the drone is turned on, also has green light on it...I've reinstalled the app multile times...is there something else that needs to be done when Installing a new camera?thanks